NetSurf
duk_config.h
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1/*
2 * duk_config.h configuration header generated by genconfig.py.
3 *
4 * Git commit: external
5 * Git describe: external
6 * Git branch: external
7 *
8 * Supported platforms:
9 * - Mac OSX, iPhone, Darwin
10 * - Orbis
11 * - OpenBSD
12 * - Generic BSD
13 * - Atari ST TOS
14 * - AmigaOS
15 * - Durango (XboxOne)
16 * - Windows
17 * - Flashplayer (Crossbridge)
18 * - QNX
19 * - TI-Nspire
20 * - Emscripten
21 * - Android
22 * - Linux
23 * - Solaris
24 * - AIX
25 * - HPUX
26 * - Generic POSIX
27 * - Cygwin
28 * - Generic UNIX
29 * - Generic fallback
30 *
31 * Supported architectures:
32 * - x86
33 * - x64
34 * - x32
35 * - ARM 32-bit
36 * - ARM 64-bit
37 * - MIPS 32-bit
38 * - MIPS 64-bit
39 * - PowerPC 32-bit
40 * - PowerPC 64-bit
41 * - SPARC 32-bit
42 * - SPARC 64-bit
43 * - RISC-V 32-bit
44 * - RISC-V 64-bit
45 * - SuperH
46 * - Motorola 68k
47 * - Emscripten
48 * - Generic
49 *
50 * Supported compilers:
51 * - Clang
52 * - GCC
53 * - MSVC
54 * - Emscripten
55 * - TinyC
56 * - VBCC
57 * - Bruce's C compiler
58 * - Generic
59 *
60 */
61
62#if !defined(DUK_CONFIG_H_INCLUDED)
63#define DUK_CONFIG_H_INCLUDED
64
65/*
66 * Intermediate helper defines
67 */
68
69/* DLL build detection */
70/* not configured for DLL build */
71#undef DUK_F_DLL_BUILD
72
73/* Apple OSX, iOS */
74#if defined(__APPLE__)
75#define DUK_F_APPLE
76#endif
77
78/* FreeBSD */
79#if defined(__FreeBSD__) || defined(__FreeBSD)
80#define DUK_F_FREEBSD
81#endif
82
83/* Orbis (PS4) variant */
84#if defined(DUK_F_FREEBSD) && defined(__ORBIS__)
85#define DUK_F_ORBIS
86#endif
87
88/* OpenBSD */
89#if defined(__OpenBSD__) || defined(__OpenBSD)
90#define DUK_F_OPENBSD
91#endif
92
93/* NetBSD */
94#if defined(__NetBSD__) || defined(__NetBSD)
95#define DUK_F_NETBSD
96#endif
97
98/* BSD variant */
99#if defined(DUK_F_FREEBSD) || defined(DUK_F_NETBSD) || defined(DUK_F_OPENBSD) || \
100 defined(__bsdi__) || defined(__DragonFly__)
101#define DUK_F_BSD
102#endif
103
104/* Atari ST TOS. __TOS__ defined by PureC. No platform define in VBCC
105 * apparently, so to use with VBCC user must define __TOS__ manually.
106 */
107#if defined(__TOS__)
108#define DUK_F_TOS
109#endif
110
111/* Motorola 68K. Not defined by VBCC, so user must define one of these
112 * manually when using VBCC.
113 */
114#if defined(__m68k__) || defined(M68000) || defined(__MC68K__)
115#define DUK_F_M68K
116#endif
117
118/* AmigaOS. Neither AMIGA nor __amigaos__ is defined on VBCC, so user must
119 * define 'AMIGA' manually when using VBCC.
120 */
121#if defined(AMIGA) || defined(__amigaos__)
122#define DUK_F_AMIGAOS
123#endif
124
125/* PowerPC */
126#if defined(__powerpc) || defined(__powerpc__) || defined(__PPC__)
127#define DUK_F_PPC
128#if defined(__PPC64__) || defined(__LP64__) || defined(_LP64)
129#define DUK_F_PPC64
130#else
131#define DUK_F_PPC32
132#endif
133#endif
134
135/* Durango (Xbox One) */
136#if defined(_DURANGO) || defined(_XBOX_ONE)
137#define DUK_F_DURANGO
138#endif
139
140/* Windows, both 32-bit and 64-bit */
141#if defined(_WIN32) || defined(WIN32) || defined(_WIN64) || defined(WIN64) || \
142 defined(__WIN32__) || defined(__TOS_WIN__) || defined(__WINDOWS__)
143#define DUK_F_WINDOWS
144#if defined(_WIN64) || defined(WIN64)
145#define DUK_F_WIN64
146#else
147#define DUK_F_WIN32
148#endif
149#endif
150
151/* Flash player (e.g. Crossbridge) */
152#if defined(__FLASHPLAYER__)
153#define DUK_F_FLASHPLAYER
154#endif
155
156/* QNX */
157#if defined(__QNX__)
158#define DUK_F_QNX
159#endif
160
161/* TI-Nspire (using Ndless) */
162#if defined(_TINSPIRE)
163#define DUK_F_TINSPIRE
164#endif
165
166/* Emscripten (provided explicitly by user), improve if possible */
167#if defined(EMSCRIPTEN)
168#define DUK_F_EMSCRIPTEN
169#endif
170
171/* BCC (Bruce's C compiler): this is a "torture target" for compilation */
172#if defined(__BCC__) || defined(__BCC_VERSION__)
173#define DUK_F_BCC
174#endif
175
176#if defined(ANDROID) || defined(__ANDROID__)
177#define DUK_F_ANDROID
178#endif
179
180/* Linux */
181#if defined(__linux) || defined(__linux__) || defined(linux)
182#define DUK_F_LINUX
183#endif
184
185/* illumos / Solaris */
186#if defined(__sun) && defined(__SVR4)
187#define DUK_F_SUN
188#if defined(__SUNPRO_C) && (__SUNPRO_C < 0x550)
189#define DUK_F_OLD_SOLARIS
190/* Defines _ILP32 / _LP64 required by DUK_F_X86/DUK_F_X64. Platforms
191 * are processed before architectures, so this happens before the
192 * DUK_F_X86/DUK_F_X64 detection is emitted.
193 */
194#include <sys/isa_defs.h>
195#endif
196#endif
197
198/* AIX */
199#if defined(_AIX)
200/* defined(__xlc__) || defined(__IBMC__): works but too wide */
201#define DUK_F_AIX
202#endif
203
204/* HPUX */
205#if defined(__hpux)
206#define DUK_F_HPUX
207#if defined(__ia64)
208#define DUK_F_HPUX_ITANIUM
209#endif
210#endif
211
212/* POSIX */
213#if defined(__posix)
214#define DUK_F_POSIX
215#endif
216
217/* Cygwin */
218#if defined(__CYGWIN__)
219#define DUK_F_CYGWIN
220#endif
221
222/* Generic Unix (includes Cygwin) */
223#if defined(__unix) || defined(__unix__) || defined(unix) || \
224 defined(DUK_F_LINUX) || defined(DUK_F_BSD)
225#define DUK_F_UNIX
226#endif
227
228/* Intel x86 (32-bit), x64 (64-bit) or x32 (64-bit but 32-bit pointers),
229 * define only one of DUK_F_X86, DUK_F_X64, DUK_F_X32.
230 * https://sites.google.com/site/x32abi/
231 *
232 * With DUK_F_OLD_SOLARIS the <sys/isa_defs.h> header must be included
233 * before this.
234 */
235#if defined(__amd64__) || defined(__amd64) || \
236 defined(__x86_64__) || defined(__x86_64) || \
237 defined(_M_X64) || defined(_M_AMD64)
238#if defined(__ILP32__) || defined(_ILP32)
239#define DUK_F_X32
240#else
241#define DUK_F_X64
242#endif
243#elif defined(i386) || defined(__i386) || defined(__i386__) || \
244 defined(__i486__) || defined(__i586__) || defined(__i686__) || \
245 defined(__IA32__) || defined(_M_IX86) || defined(__X86__) || \
246 defined(_X86_) || defined(__THW_INTEL__) || defined(__I86__)
247#if defined(__LP64__) || defined(_LP64)
248/* This should not really happen, but would indicate x64. */
249#define DUK_F_X64
250#else
251#define DUK_F_X86
252#endif
253#endif
254
255/* ARM */
256#if defined(__arm__) || defined(__thumb__) || defined(_ARM) || defined(_M_ARM) || defined(_M_ARM64) || defined(__aarch64__)
257#define DUK_F_ARM
258#if defined(__LP64__) || defined(_LP64) || defined(__arm64) || defined(__arm64__) || defined(_M_ARM64) || defined(__aarch64__)
259#define DUK_F_ARM64
260#else
261#define DUK_F_ARM32
262#endif
263#endif
264
265/* MIPS. Related defines: __MIPSEB__, __MIPSEL__, __mips_isa_rev, __LP64__ */
266#if defined(__mips__) || defined(mips) || defined(_MIPS_ISA) || \
267 defined(_R3000) || defined(_R4000) || defined(_R5900) || \
268 defined(_MIPS_ISA_MIPS1) || defined(_MIPS_ISA_MIPS2) || \
269 defined(_MIPS_ISA_MIPS3) || defined(_MIPS_ISA_MIPS4) || \
270 defined(__mips) || defined(__MIPS__)
271#define DUK_F_MIPS
272#if defined(__LP64__) || defined(_LP64) || defined(__mips64) || \
273 defined(__mips64__) || defined(__mips_n64)
274#define DUK_F_MIPS64
275#else
276#define DUK_F_MIPS32
277#endif
278#endif
279
280/* SPARC */
281#if defined(sparc) || defined(__sparc) || defined(__sparc__)
282#define DUK_F_SPARC
283#if defined(__LP64__) || defined(_LP64)
284#define DUK_F_SPARC64
285#else
286#define DUK_F_SPARC32
287#endif
288#endif
289
290/* RISC-V, https://github.com/riscv/riscv-toolchain-conventions#cc-preprocessor-definitions */
291#if defined(__riscv)
292#define DUK_F_RISCV
293#if defined(__riscv_xlen)
294#if (__riscv_xlen == 32)
295#define DUK_F_RISCV32
296#elif (__riscv_xlen == 64)
297#define DUK_F_RISCV64
298#else
299#error __riscv_xlen has unsupported value (not 32 or 64)
300#endif
301#else
302#error __riscv defined without __riscv_xlen
303#endif
304#endif /* __riscv */
305
306/* SuperH */
307#if defined(__sh__) || \
308 defined(__sh1__) || defined(__SH1__) || \
309 defined(__sh2__) || defined(__SH2__) || \
310 defined(__sh3__) || defined(__SH3__) || \
311 defined(__sh4__) || defined(__SH4__) || \
312 defined(__sh5__) || defined(__SH5__)
313#define DUK_F_SUPERH
314#endif
315
316/* Clang */
317#if defined(__clang__)
318#define DUK_F_CLANG
319#endif
320
321/* C++ */
322#undef DUK_F_CPP
323#if defined(__cplusplus)
324#define DUK_F_CPP
325#endif
326
327/* C99 or above */
328#undef DUK_F_C99
329#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
330#define DUK_F_C99
331#endif
332
333/* C++11 or above */
334#undef DUK_F_CPP11
335#if defined(__cplusplus) && (__cplusplus >= 201103L)
336#define DUK_F_CPP11
337#endif
338
339/* GCC. Clang also defines __GNUC__ so don't detect GCC if using Clang. */
340#if defined(__GNUC__) && !defined(__clang__) && !defined(DUK_F_CLANG)
341#define DUK_F_GCC
342#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
343/* Convenience, e.g. gcc 4.5.1 == 40501; http://stackoverflow.com/questions/6031819/emulating-gccs-builtin-unreachable */
344#define DUK_F_GCC_VERSION (__GNUC__ * 10000L + __GNUC_MINOR__ * 100L + __GNUC_PATCHLEVEL__)
345#else
346#error cannot figure out gcc version
347#endif
348#endif
349
350/* MinGW. Also GCC flags (DUK_F_GCC) are enabled now. */
351#if defined(__MINGW32__) || defined(__MINGW64__)
352#define DUK_F_MINGW
353#endif
354
355/* MSVC */
356#if defined(_MSC_VER)
357/* MSVC preprocessor defines: http://msdn.microsoft.com/en-us/library/b0084kay.aspx
358 * _MSC_FULL_VER includes the build number, but it has at least two formats, see e.g.
359 * BOOST_MSVC_FULL_VER in http://www.boost.org/doc/libs/1_52_0/boost/config/compiler/visualc.hpp
360 */
361#define DUK_F_MSVC
362#if defined(_MSC_FULL_VER)
363#if (_MSC_FULL_VER > 100000000)
364#define DUK_F_MSVC_FULL_VER _MSC_FULL_VER
365#else
366#define DUK_F_MSCV_FULL_VER (_MSC_FULL_VER * 10)
367#endif
368#endif
369#endif /* _MSC_VER */
370
371/* TinyC */
372#if defined(__TINYC__)
373/* http://bellard.org/tcc/tcc-doc.html#SEC9 */
374#define DUK_F_TINYC
375#endif
376
377/* VBCC */
378#if defined(__VBCC__)
379#define DUK_F_VBCC
380#endif
381
382/* Atari Mint */
383#if defined(__MINT__)
384#define DUK_F_MINT
385#endif
386
387/*
388 * Platform autodetection
389 */
390
391/* Workaround for older C++ compilers before including <inttypes.h>,
392 * see e.g.: https://sourceware.org/bugzilla/show_bug.cgi?id=15366
393 */
394#if defined(__cplusplus) && !defined(__STDC_LIMIT_MACROS)
395#define __STDC_LIMIT_MACROS
396#endif
397#if defined(__cplusplus) && !defined(__STDC_CONSTANT_MACROS)
398#define __STDC_CONSTANT_MACROS
399#endif
400
401#if defined(DUK_F_APPLE)
402/* --- Mac OSX, iPhone, Darwin --- */
403#define DUK_USE_DATE_NOW_GETTIMEOFDAY
404#define DUK_USE_DATE_TZO_GMTIME_R
405#define DUK_USE_DATE_PRS_STRPTIME
406#define DUK_USE_DATE_FMT_STRFTIME
407#include <TargetConditionals.h>
408#include <architecture/byte_order.h>
409#include <sys/param.h>
410#include <sys/time.h>
411#include <time.h>
412
413/* http://stackoverflow.com/questions/5919996/how-to-detect-reliably-mac-os-x-ios-linux-windows-in-c-preprocessor */
414#if TARGET_IPHONE_SIMULATOR
415#define DUK_USE_OS_STRING "iphone-sim"
416#elif TARGET_OS_IPHONE
417#define DUK_USE_OS_STRING "iphone"
418#elif TARGET_OS_MAC
419#define DUK_USE_OS_STRING "osx"
420#else
421#define DUK_USE_OS_STRING "osx-unknown"
422#endif
423
424/* Use _setjmp() on Apple by default, see GH-55. */
425#define DUK_JMPBUF_TYPE jmp_buf
426#define DUK_SETJMP(jb) _setjmp((jb))
427#define DUK_LONGJMP(jb) _longjmp((jb), 1)
428#elif defined(DUK_F_ORBIS)
429/* --- Orbis --- */
430/* Orbis = PS4 */
431#define DUK_USE_DATE_NOW_GETTIMEOFDAY
432#define DUK_USE_DATE_TZO_GMTIME_S
433/* no parsing (not an error) */
434#define DUK_USE_DATE_FMT_STRFTIME
435#include <sys/types.h>
436#include <machine/endian.h>
437#include <sys/param.h>
438#include <sys/time.h>
439#include <time.h>
440
441#define DUK_USE_OS_STRING "orbis"
442#elif defined(DUK_F_OPENBSD)
443/* --- OpenBSD --- */
444/* http://www.monkey.org/openbsd/archive/ports/0401/msg00089.html */
445#define DUK_USE_DATE_NOW_GETTIMEOFDAY
446#define DUK_USE_DATE_TZO_GMTIME_R
447#define DUK_USE_DATE_PRS_STRPTIME
448#define DUK_USE_DATE_FMT_STRFTIME
449#include <sys/types.h>
450#include <sys/endian.h>
451#include <sys/param.h>
452#include <sys/time.h>
453#include <time.h>
454
455#define DUK_USE_OS_STRING "openbsd"
456#elif defined(DUK_F_BSD)
457/* --- Generic BSD --- */
458#define DUK_USE_DATE_NOW_GETTIMEOFDAY
459#define DUK_USE_DATE_TZO_GMTIME_R
460#define DUK_USE_DATE_PRS_STRPTIME
461#define DUK_USE_DATE_FMT_STRFTIME
462#include <sys/types.h>
463#include <sys/endian.h>
464#include <sys/param.h>
465#include <sys/time.h>
466#include <time.h>
467
468#define DUK_USE_OS_STRING "bsd"
469#elif defined(DUK_F_TOS)
470/* --- Atari ST TOS --- */
471#define DUK_USE_DATE_NOW_TIME
472#define DUK_USE_DATE_TZO_GMTIME
473/* no parsing (not an error) */
474#define DUK_USE_DATE_FMT_STRFTIME
475#include <time.h>
476
477#define DUK_USE_OS_STRING "tos"
478
479/* TOS on M68K is always big endian. */
480#if !defined(DUK_USE_BYTEORDER) && defined(DUK_F_M68K)
481#define DUK_USE_BYTEORDER 3
482#endif
483#elif defined(DUK_F_AMIGAOS)
484/* --- AmigaOS --- */
485#if defined(DUK_F_M68K)
486/* AmigaOS on M68k */
487#define DUK_USE_DATE_NOW_TIME
488#define DUK_USE_DATE_TZO_GMTIME
489/* no parsing (not an error) */
490#define DUK_USE_DATE_FMT_STRFTIME
491#include <time.h>
492#elif defined(DUK_F_PPC)
493#define DUK_USE_DATE_NOW_GETTIMEOFDAY
494#define DUK_USE_DATE_TZO_GMTIME_R
495#define DUK_USE_DATE_PRS_STRPTIME
496#define DUK_USE_DATE_FMT_STRFTIME
497#include <time.h>
498#if !defined(UINTPTR_MAX)
499#define UINTPTR_MAX UINT_MAX
500#endif
501#else
502#error AmigaOS but not M68K/PPC, not supported now
503#endif
504
505#define DUK_USE_OS_STRING "amigaos"
506
507/* AmigaOS on M68K or PPC is always big endian. */
508#if !defined(DUK_USE_BYTEORDER) && (defined(DUK_F_M68K) || defined(DUK_F_PPC))
509#define DUK_USE_BYTEORDER 3
510#endif
511#elif defined(DUK_F_DURANGO)
512/* --- Durango (XboxOne) --- */
513/* Durango = XboxOne
514 * Configuration is nearly identical to Windows, except for
515 * DUK_USE_DATE_TZO_WINDOWS.
516 */
517
518/* Initial fix: disable secure CRT related warnings when compiling Duktape
519 * itself (must be defined before including Windows headers). Don't define
520 * for user code including duktape.h.
521 */
522#if defined(DUK_COMPILING_DUKTAPE) && !defined(_CRT_SECURE_NO_WARNINGS)
523#define _CRT_SECURE_NO_WARNINGS
524#endif
525
526/* MSVC does not have sys/param.h */
527#define DUK_USE_DATE_NOW_WINDOWS
528#define DUK_USE_DATE_TZO_WINDOWS_NO_DST
529/* Note: PRS and FMT are intentionally left undefined for now. This means
530 * there is no platform specific date parsing/formatting but there is still
531 * the ISO 8601 standard format.
532 */
533#if defined(DUK_COMPILING_DUKTAPE)
534/* Only include when compiling Duktape to avoid polluting application build
535 * with a lot of unnecessary defines.
536 */
537#include <windows.h>
538#endif
539
540#define DUK_USE_OS_STRING "durango"
541
542#if !defined(DUK_USE_BYTEORDER)
543#define DUK_USE_BYTEORDER 1
544#endif
545#elif defined(DUK_F_WINDOWS)
546/* --- Windows --- */
547/* Windows version can't obviously be determined at compile time,
548 * but _WIN32_WINNT indicates the minimum version targeted:
549 * - https://msdn.microsoft.com/en-us/library/6sehtctf.aspx
550 */
551
552/* Initial fix: disable secure CRT related warnings when compiling Duktape
553 * itself (must be defined before including Windows headers). Don't define
554 * for user code including duktape.h.
555 */
556#if defined(DUK_COMPILING_DUKTAPE) && !defined(_CRT_SECURE_NO_WARNINGS)
557#define _CRT_SECURE_NO_WARNINGS
558#endif
559
560/* Windows 32-bit and 64-bit are currently the same. */
561/* MSVC does not have sys/param.h */
562
563#if defined(DUK_COMPILING_DUKTAPE)
564/* Only include when compiling Duktape to avoid polluting application build
565 * with a lot of unnecessary defines.
566 */
567#include <windows.h>
568#endif
569
570/* GetSystemTimePreciseAsFileTime() available from Windows 8:
571 * https://msdn.microsoft.com/en-us/library/windows/desktop/hh706895(v=vs.85).aspx
572 */
573#if defined(DUK_USE_DATE_NOW_WINDOWS_SUBMS) || defined(DUK_USE_DATE_NOW_WINDOWS)
574/* User forced provider. */
575#else
576#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0602)
577#define DUK_USE_DATE_NOW_WINDOWS_SUBMS
578#else
579#define DUK_USE_DATE_NOW_WINDOWS
580#endif
581#endif
582
583#define DUK_USE_DATE_TZO_WINDOWS
584
585/* Note: PRS and FMT are intentionally left undefined for now. This means
586 * there is no platform specific date parsing/formatting but there is still
587 * the ISO 8601 standard format.
588 */
589
590/* QueryPerformanceCounter() may go backwards in Windows XP, so enable for
591 * Vista and later: https://msdn.microsoft.com/en-us/library/windows/desktop/dn553408(v=vs.85).aspx#qpc_support_in_windows_versions
592 */
593#if !defined(DUK_USE_GET_MONOTONIC_TIME_WINDOWS_QPC) && \
594 defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0600)
595#define DUK_USE_GET_MONOTONIC_TIME_WINDOWS_QPC
596#endif
597
598#define DUK_USE_OS_STRING "windows"
599
600/* On Windows, assume we're little endian. Even Itanium which has a
601 * configurable endianness runs little endian in Windows.
602 */
603#if !defined(DUK_USE_BYTEORDER)
604#define DUK_USE_BYTEORDER 1
605#endif
606#elif defined(DUK_F_FLASHPLAYER)
607/* --- Flashplayer (Crossbridge) --- */
608#define DUK_USE_DATE_NOW_GETTIMEOFDAY
609#define DUK_USE_DATE_TZO_GMTIME_R
610#define DUK_USE_DATE_PRS_STRPTIME
611#define DUK_USE_DATE_FMT_STRFTIME
612#include <endian.h>
613#include <sys/param.h>
614#include <sys/time.h>
615#include <time.h>
616
617#define DUK_USE_OS_STRING "flashplayer"
618
619#if !defined(DUK_USE_BYTEORDER) && defined(DUK_F_FLASHPLAYER)
620#define DUK_USE_BYTEORDER 1
621#endif
622#elif defined(DUK_F_QNX)
623/* --- QNX --- */
624#if defined(DUK_F_QNX) && defined(DUK_COMPILING_DUKTAPE)
625/* See: /opt/qnx650/target/qnx6/usr/include/sys/platform.h */
626#define _XOPEN_SOURCE 600
627#define _POSIX_C_SOURCE 200112L
628#endif
629
630#define DUK_USE_DATE_NOW_GETTIMEOFDAY
631#define DUK_USE_DATE_TZO_GMTIME_R
632#define DUK_USE_DATE_PRS_STRPTIME
633#define DUK_USE_DATE_FMT_STRFTIME
634#include <sys/types.h>
635#include <sys/param.h>
636#include <sys/time.h>
637#include <time.h>
638
639#define DUK_USE_OS_STRING "qnx"
640#elif defined(DUK_F_TINSPIRE)
641/* --- TI-Nspire --- */
642#if defined(DUK_COMPILING_DUKTAPE) && !defined(_XOPEN_SOURCE)
643#define _XOPEN_SOURCE /* e.g. strptime */
644#endif
645
646#define DUK_USE_DATE_NOW_GETTIMEOFDAY
647#define DUK_USE_DATE_TZO_GMTIME_R
648#define DUK_USE_DATE_PRS_STRPTIME
649#define DUK_USE_DATE_FMT_STRFTIME
650#include <sys/types.h>
651#include <sys/param.h>
652#include <sys/time.h>
653#include <time.h>
654
655#define DUK_USE_OS_STRING "tinspire"
656#elif defined(DUK_F_EMSCRIPTEN)
657/* --- Emscripten --- */
658#if defined(DUK_COMPILING_DUKTAPE)
659#if !defined(_POSIX_C_SOURCE)
660#define _POSIX_C_SOURCE 200809L
661#endif
662#if !defined(_GNU_SOURCE)
663#define _GNU_SOURCE /* e.g. getdate_r */
664#endif
665#if !defined(_XOPEN_SOURCE)
666#define _XOPEN_SOURCE /* e.g. strptime */
667#endif
668#endif /* DUK_COMPILING_DUKTAPE */
669
670#include <sys/types.h>
671#if defined(DUK_F_BCC)
672/* no endian.h */
673#else
674#include <endian.h>
675#endif /* DUK_F_BCC */
676#include <sys/param.h>
677#include <sys/time.h>
678#include <time.h>
679#include <stdint.h>
680
681#define DUK_USE_DATE_NOW_GETTIMEOFDAY
682#define DUK_USE_DATE_TZO_GMTIME_R
683#define DUK_USE_DATE_PRS_STRPTIME
684#define DUK_USE_DATE_FMT_STRFTIME
685
686#define DUK_USE_OS_STRING "emscripten"
687#elif defined(DUK_F_ANDROID)
688/* --- Android --- */
689#if defined(DUK_COMPILING_DUKTAPE)
690#if !defined(_POSIX_C_SOURCE)
691#define _POSIX_C_SOURCE 200809L
692#endif
693#if !defined(_GNU_SOURCE)
694#define _GNU_SOURCE /* e.g. getdate_r */
695#endif
696#if !defined(_XOPEN_SOURCE)
697#define _XOPEN_SOURCE /* e.g. strptime */
698#endif
699#endif /* DUK_COMPILING_DUKTAPE */
700
701#include <sys/types.h>
702#if defined(DUK_F_BCC)
703/* no endian.h or stdint.h */
704#else
705#include <endian.h>
706#include <stdint.h>
707#endif /* DUK_F_BCC */
708#include <sys/param.h>
709#include <sys/time.h>
710#include <time.h>
711
712#define DUK_USE_DATE_NOW_GETTIMEOFDAY
713#define DUK_USE_DATE_TZO_GMTIME_R
714#define DUK_USE_DATE_PRS_STRPTIME
715#define DUK_USE_DATE_FMT_STRFTIME
716
717#if 0 /* XXX: safe condition? */
718#define DUK_USE_GET_MONOTONIC_TIME_CLOCK_GETTIME
719#endif
720
721#define DUK_USE_OS_STRING "android"
722#elif defined(DUK_F_LINUX)
723/* --- Linux --- */
724#if defined(DUK_COMPILING_DUKTAPE)
725#if !defined(_POSIX_C_SOURCE)
726#define _POSIX_C_SOURCE 200809L
727#endif
728#if !defined(_GNU_SOURCE)
729#define _GNU_SOURCE /* e.g. getdate_r */
730#endif
731#if !defined(_XOPEN_SOURCE)
732#define _XOPEN_SOURCE /* e.g. strptime */
733#endif
734#endif /* DUK_COMPILING_DUKTAPE */
735
736#include <sys/types.h>
737#if defined(DUK_F_BCC)
738/* no endian.h or stdint.h */
739#else
740#include <endian.h>
741#include <stdint.h>
742#endif /* DUK_F_BCC */
743#include <sys/param.h>
744#include <sys/time.h>
745#include <time.h>
746
747#define DUK_USE_DATE_NOW_GETTIMEOFDAY
748#define DUK_USE_DATE_TZO_GMTIME_R
749#define DUK_USE_DATE_PRS_STRPTIME
750#define DUK_USE_DATE_FMT_STRFTIME
751
752#if 0 /* XXX: safe condition? */
753#define DUK_USE_GET_MONOTONIC_TIME_CLOCK_GETTIME
754#endif
755
756#define DUK_USE_OS_STRING "linux"
757#elif defined(DUK_F_SUN)
758/* --- Solaris --- */
759#define DUK_USE_DATE_NOW_GETTIMEOFDAY
760#define DUK_USE_DATE_TZO_GMTIME_R
761#define DUK_USE_DATE_PRS_STRPTIME
762#define DUK_USE_DATE_FMT_STRFTIME
763
764#include <sys/types.h>
765#if defined(DUK_F_OLD_SOLARIS)
766/* Old Solaris with no endian.h, stdint.h */
767#define DUK_F_NO_STDINT_H
768#if !defined(DUK_USE_BYTEORDER)
769#define DUK_USE_BYTEORDER 3
770#endif
771#else /* DUK_F_OLD_SOLARIS */
772#include <sys/param.h>
773#endif /* DUK_F_OLD_SOLARIS */
774
775#include <sys/param.h>
776#include <sys/time.h>
777#include <time.h>
778
779#define DUK_USE_OS_STRING "solaris"
780#elif defined(DUK_F_AIX)
781/* --- AIX --- */
782#if !defined(DUK_USE_BYTEORDER)
783#define DUK_USE_BYTEORDER 3
784#endif
785#define DUK_USE_DATE_NOW_GETTIMEOFDAY
786#define DUK_USE_DATE_TZO_GMTIME_R
787#define DUK_USE_DATE_PRS_STRPTIME
788#define DUK_USE_DATE_FMT_STRFTIME
789#include <sys/param.h>
790#include <sys/time.h>
791#include <time.h>
792
793#define DUK_USE_OS_STRING "aix"
794#elif defined(DUK_F_HPUX)
795/* --- HPUX --- */
796#define DUK_F_NO_STDINT_H
797#if !defined(DUK_USE_BYTEORDER)
798#define DUK_USE_BYTEORDER 3
799#endif
800#define DUK_USE_DATE_NOW_GETTIMEOFDAY
801#define DUK_USE_DATE_TZO_GMTIME_R
802#define DUK_USE_DATE_PRS_STRPTIME
803#define DUK_USE_DATE_FMT_STRFTIME
804#include <sys/param.h>
805#include <sys/time.h>
806#include <time.h>
807
808#define DUK_USE_OS_STRING "hpux"
809#elif defined(DUK_F_POSIX)
810/* --- Generic POSIX --- */
811#define DUK_USE_DATE_NOW_GETTIMEOFDAY
812#define DUK_USE_DATE_TZO_GMTIME_R
813#define DUK_USE_DATE_PRS_STRPTIME
814#define DUK_USE_DATE_FMT_STRFTIME
815#include <sys/types.h>
816#include <endian.h>
817#include <sys/param.h>
818#include <sys/time.h>
819#include <time.h>
820
821#define DUK_USE_OS_STRING "posix"
822#elif defined(DUK_F_CYGWIN)
823/* --- Cygwin --- */
824/* don't use strptime() for now */
825#define DUK_USE_DATE_NOW_GETTIMEOFDAY
826#define DUK_USE_DATE_TZO_GMTIME_R
827#define DUK_USE_DATE_FMT_STRFTIME
828#include <sys/types.h>
829#include <endian.h>
830#include <sys/param.h>
831#include <sys/time.h>
832#include <time.h>
833
834#define DUK_JMPBUF_TYPE jmp_buf
835#define DUK_SETJMP(jb) _setjmp((jb))
836#define DUK_LONGJMP(jb) _longjmp((jb), 1)
837
838#define DUK_USE_OS_STRING "windows"
839#elif defined(DUK_F_UNIX)
840/* --- Generic UNIX --- */
841#define DUK_USE_DATE_NOW_GETTIMEOFDAY
842#define DUK_USE_DATE_TZO_GMTIME_R
843#define DUK_USE_DATE_PRS_STRPTIME
844#define DUK_USE_DATE_FMT_STRFTIME
845#include <time.h>
846#include <sys/time.h>
847#define DUK_USE_OS_STRING "unknown"
848#else
849/* --- Generic fallback --- */
850/* The most portable current time provider is time(), but it only has a
851 * one second resolution.
852 */
853#define DUK_USE_DATE_NOW_TIME
854
855/* The most portable way to figure out local time offset is gmtime(),
856 * but it's not thread safe so use with caution.
857 */
858#define DUK_USE_DATE_TZO_GMTIME
859
860/* Avoid custom date parsing and formatting for portability. */
861#undef DUK_USE_DATE_PRS_STRPTIME
862#undef DUK_USE_DATE_FMT_STRFTIME
863
864/* Rely on C89 headers only; time.h must be here. */
865#include <time.h>
866
867#define DUK_USE_OS_STRING "unknown"
868#endif /* autodetect platform */
869
870/* Shared includes: C89 */
871#include <stdio.h>
872#include <stdlib.h>
873#include <string.h>
874#include <stdarg.h> /* varargs */
875#include <setjmp.h>
876#include <stddef.h> /* e.g. ptrdiff_t */
877#include <math.h>
878#include <limits.h>
879
880/* date.h is omitted, and included per platform */
881
882/* Shared includes: stdint.h is C99 */
883#if defined(DUK_F_NO_STDINT_H)
884/* stdint.h not available */
885#else
886/* Technically C99 (C++11) but found in many systems. On some systems
887 * __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS must be defined before
888 * including stdint.h (see above).
889 */
890#include <stdint.h>
891#endif
892
893/* <exception> is only included if needed, based on DUK_USE_xxx flags. */
894
895/*
896 * Architecture autodetection
897 */
898
899#if defined(DUK_F_X86)
900/* --- x86 --- */
901#define DUK_USE_ARCH_STRING "x86"
902#if !defined(DUK_USE_BYTEORDER)
903#define DUK_USE_BYTEORDER 1
904#endif
905
906#define DUK_USE_PACKED_TVAL
907
908/* FreeBSD, -m32, and clang prior to 5.0 has union aliasing issues which
909 * break duk_tval copying. Disable packed duk_tval automatically.
910 */
911#if defined(DUK_F_FREEBSD) && defined(DUK_F_X86) && \
912 defined(__clang__) && defined(__clang_major__) && (__clang_major__ < 5)
913#undef DUK_USE_PACKED_TVAL
914#endif
915#define DUK_F_PACKED_TVAL_PROVIDED
916#elif defined(DUK_F_X64)
917/* --- x64 --- */
918#define DUK_USE_ARCH_STRING "x64"
919#if !defined(DUK_USE_BYTEORDER)
920#define DUK_USE_BYTEORDER 1
921#endif
922#undef DUK_USE_PACKED_TVAL
923#define DUK_F_PACKED_TVAL_PROVIDED
924#elif defined(DUK_F_X32)
925/* --- x32 --- */
926#define DUK_USE_ARCH_STRING "x32"
927#if !defined(DUK_USE_BYTEORDER)
928#define DUK_USE_BYTEORDER 1
929#endif
930#define DUK_USE_PACKED_TVAL
931#define DUK_F_PACKED_TVAL_PROVIDED
932#elif defined(DUK_F_ARM32)
933/* --- ARM 32-bit --- */
934#define DUK_USE_ARCH_STRING "arm32"
935/* Byte order varies, so rely on autodetect. */
936#define DUK_USE_PACKED_TVAL
937#define DUK_F_PACKED_TVAL_PROVIDED
938#elif defined(DUK_F_ARM64)
939/* --- ARM 64-bit --- */
940#define DUK_USE_ARCH_STRING "arm64"
941/* Byte order varies, so rely on autodetect. */
942#undef DUK_USE_PACKED_TVAL
943#define DUK_F_PACKED_TVAL_PROVIDED
944#elif defined(DUK_F_MIPS32)
945/* --- MIPS 32-bit --- */
946#define DUK_USE_ARCH_STRING "mips32"
947/* MIPS byte order varies so rely on autodetection. */
948#define DUK_USE_PACKED_TVAL
949#define DUK_F_PACKED_TVAL_PROVIDED
950#elif defined(DUK_F_MIPS64)
951/* --- MIPS 64-bit --- */
952#define DUK_USE_ARCH_STRING "mips64"
953/* MIPS byte order varies so rely on autodetection. */
954#undef DUK_USE_PACKED_TVAL
955#define DUK_F_PACKED_TVAL_PROVIDED
956#elif defined(DUK_F_PPC32)
957/* --- PowerPC 32-bit --- */
958#define DUK_USE_ARCH_STRING "ppc32"
959#if !defined(DUK_USE_BYTEORDER)
960#define DUK_USE_BYTEORDER 3
961#endif
962#define DUK_USE_PACKED_TVAL
963#define DUK_F_PACKED_TVAL_PROVIDED
964#elif defined(DUK_F_PPC64)
965/* --- PowerPC 64-bit --- */
966#define DUK_USE_ARCH_STRING "ppc64"
967/* No forced byteorder (both little and big endian are possible). */
968#undef DUK_USE_PACKED_TVAL
969#define DUK_F_PACKED_TVAL_PROVIDED
970#elif defined(DUK_F_SPARC32)
971/* --- SPARC 32-bit --- */
972#define DUK_USE_ARCH_STRING "sparc32"
973/* SPARC byte order varies so rely on autodetection. */
974#define DUK_USE_PACKED_TVAL
975#define DUK_F_PACKED_TVAL_PROVIDED
976#elif defined(DUK_F_SPARC64)
977/* --- SPARC 64-bit --- */
978#define DUK_USE_ARCH_STRING "sparc64"
979/* SPARC byte order varies so rely on autodetection. */
980#undef DUK_USE_PACKED_TVAL
981#define DUK_F_PACKED_TVAL_PROVIDED
982#elif defined(DUK_F_RISCV32)
983/* --- RISC-V 32-bit --- */
984#define DUK_USE_ARCH_STRING "riscv32"
985#define DUK_USE_BYTEORDER 1
986#define DUK_USE_PACKED_TVAL
987#define DUK_F_PACKED_TVAL_PROVIDED
988#elif defined(DUK_F_RISCV64)
989/* --- RISC-V 64-bit --- */
990#define DUK_USE_ARCH_STRING "riscv64"
991#define DUK_USE_BYTEORDER 1
992#undef DUK_USE_PACKED_TVAL
993#define DUK_F_PACKED_TVAL_PROVIDED
994#elif defined(DUK_F_SUPERH)
995/* --- SuperH --- */
996#define DUK_USE_ARCH_STRING "sh"
997/* Byte order varies, rely on autodetection. */
998#define DUK_USE_PACKED_TVAL
999#define DUK_F_PACKED_TVAL_PROVIDED
1000#elif defined(DUK_F_M68K)
1001/* --- Motorola 68k --- */
1002#define DUK_USE_ARCH_STRING "m68k"
1003#if !defined(DUK_USE_BYTEORDER)
1004#define DUK_USE_BYTEORDER 3
1005#endif
1006#define DUK_USE_PACKED_TVAL
1007#define DUK_F_PACKED_TVAL_PROVIDED
1008#elif defined(DUK_F_EMSCRIPTEN)
1009/* --- Emscripten --- */
1010#define DUK_USE_ARCH_STRING "emscripten"
1011#if !defined(DUK_USE_BYTEORDER)
1012#define DUK_USE_BYTEORDER 1
1013#endif
1014#undef DUK_USE_PACKED_TVAL
1015#define DUK_F_PACKED_TVAL_PROVIDED
1016#else
1017/* --- Generic --- */
1018/* These are necessary wild guesses. */
1019#define DUK_USE_ARCH_STRING "generic"
1020/* Rely on autodetection for byte order, alignment, and packed tval. */
1021#endif /* autodetect architecture */
1022
1023/*
1024 * Compiler autodetection
1025 */
1026
1027#if defined(DUK_F_CLANG)
1028/* --- Clang --- */
1029#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1030/* C99 / C++11 and above: rely on va_copy() which is required. */
1031#define DUK_VA_COPY(dest,src) va_copy(dest,src)
1032#else
1033/* Clang: assume we have __va_copy() in non-C99 mode. */
1034#define DUK_VA_COPY(dest,src) __va_copy(dest,src)
1035#endif
1036
1037#define DUK_NORETURN(decl) decl __attribute__((noreturn))
1038
1039#if defined(__clang__) && defined(__has_builtin)
1040#if __has_builtin(__builtin_unreachable)
1041#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0)
1042#endif
1043#endif
1044
1045#define DUK_USE_BRANCH_HINTS
1046#define DUK_LIKELY(x) __builtin_expect((x), 1)
1047#define DUK_UNLIKELY(x) __builtin_expect((x), 0)
1048#if defined(__clang__) && defined(__has_builtin)
1049#if __has_builtin(__builtin_unpredictable)
1050#define DUK_UNPREDICTABLE(x) __builtin_unpredictable((x))
1051#endif
1052#endif
1053
1054#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1055#define DUK_NOINLINE __attribute__((noinline))
1056#define DUK_INLINE inline
1057#define DUK_ALWAYS_INLINE inline __attribute__((always_inline))
1058#endif
1059
1060/* DUK_HOT */
1061/* DUK_COLD */
1062
1063#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
1064/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
1065 * compiling Duktape or the application.
1066 */
1067#if defined(DUK_COMPILING_DUKTAPE)
1068#define DUK_EXTERNAL_DECL extern __declspec(dllexport)
1069#define DUK_EXTERNAL __declspec(dllexport)
1070#else
1071#define DUK_EXTERNAL_DECL extern __declspec(dllimport)
1072#define DUK_EXTERNAL should_not_happen
1073#endif
1074#if defined(DUK_SINGLE_FILE)
1075#define DUK_INTERNAL_DECL static
1076#define DUK_INTERNAL static
1077#else
1078#define DUK_INTERNAL_DECL extern
1079#define DUK_INTERNAL /*empty*/
1080#endif
1081#define DUK_LOCAL_DECL static
1082#define DUK_LOCAL static
1083#else
1084#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern
1085#define DUK_EXTERNAL __attribute__ ((visibility("default")))
1086#if defined(DUK_SINGLE_FILE)
1087#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1088/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
1089 * Clang. Based on documentation it should suffice to have the attribute
1090 * in the declaration only, but in practice some warnings are generated unless
1091 * the attribute is also applied to the definition.
1092 */
1093#define DUK_INTERNAL_DECL static __attribute__ ((unused))
1094#define DUK_INTERNAL static __attribute__ ((unused))
1095#else
1096#define DUK_INTERNAL_DECL static
1097#define DUK_INTERNAL static
1098#endif
1099#else
1100#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1101#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
1102#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
1103#else
1104#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern
1105#define DUK_INTERNAL __attribute__ ((visibility("hidden")))
1106#endif
1107#endif
1108#define DUK_LOCAL_DECL static
1109#define DUK_LOCAL static
1110#endif
1111
1112#if defined(DUK_F_CPP)
1113#define DUK_USE_COMPILER_STRING "clang"
1114#else
1115#define DUK_USE_COMPILER_STRING "clang"
1116#endif
1117
1118#undef DUK_USE_VARIADIC_MACROS
1119#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1120#define DUK_USE_VARIADIC_MACROS
1121#endif
1122
1123#define DUK_USE_UNION_INITIALIZERS
1124
1125#undef DUK_USE_FLEX_C99
1126#undef DUK_USE_FLEX_ZEROSIZE
1127#undef DUK_USE_FLEX_ONESIZE
1128#if defined(DUK_F_C99)
1129#define DUK_USE_FLEX_C99
1130#else
1131#define DUK_USE_FLEX_ZEROSIZE
1132#endif
1133
1134#define DUK_USE_CLANG_PRAGMAS
1135#define DUK_USE_PACK_CLANG_ATTR
1136
1137#if defined(__clang__) && defined(__has_builtin)
1138#if __has_builtin(__builtin_bswap64)
1139#define DUK_BSWAP64(x) ((duk_uint64_t) __builtin_bswap64((duk_uint64_t) (x)))
1140#endif
1141#if __has_builtin(__builtin_bswap32)
1142#define DUK_BSWAP32(x) ((duk_uint32_t) __builtin_bswap32((duk_uint32_t) (x)))
1143#endif
1144#if __has_builtin(__builtin_bswap16)
1145#define DUK_BSWAP16(x) ((duk_uint16_t) __builtin_bswap16((duk_uint16_t) (x)))
1146#endif
1147#endif
1148#elif defined(DUK_F_GCC)
1149/* --- GCC --- */
1150#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1151/* C99 / C++11 and above: rely on va_copy() which is required. */
1152#define DUK_VA_COPY(dest,src) va_copy(dest,src)
1153#else
1154/* GCC: assume we have __va_copy() in non-C99 mode. */
1155#define DUK_VA_COPY(dest,src) __va_copy(dest,src)
1156#endif
1157
1158#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 20500L) && (DUK_F_GCC_VERSION < 50000L)
1159/* Since gcc-2.5.
1160 *
1161 * Disabled temporarily in GCC 5+ because of an unresolved noreturn-related
1162 * issue: https://github.com/svaarala/duktape/issues/2155.
1163 */
1164#define DUK_NORETURN(decl) decl __attribute__((noreturn))
1165#endif
1166
1167#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L)
1168/* Since gcc-4.5. */
1169#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0)
1170#endif
1171
1172#define DUK_USE_BRANCH_HINTS
1173#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L)
1174/* GCC: test not very accurate; enable only in relatively recent builds
1175 * because of bugs in gcc-4.4 (http://lists.debian.org/debian-gcc/2010/04/msg00000.html)
1176 */
1177#define DUK_LIKELY(x) __builtin_expect((x), 1)
1178#define DUK_UNLIKELY(x) __builtin_expect((x), 0)
1179#endif
1180/* XXX: equivalent of clang __builtin_unpredictable? */
1181
1182#if (defined(DUK_F_C99) || defined(DUK_F_CPP11)) && \
1183 defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 30101)
1184#define DUK_NOINLINE __attribute__((noinline))
1185#define DUK_INLINE inline
1186#define DUK_ALWAYS_INLINE inline __attribute__((always_inline))
1187#endif
1188
1189#if (defined(DUK_F_C99) || defined(DUK_F_CPP11)) && \
1190 defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40300)
1191#define DUK_HOT __attribute__((hot))
1192#define DUK_COLD __attribute__((cold))
1193#endif
1194
1195#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
1196/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
1197 * compiling Duktape or the application.
1198 */
1199#if defined(DUK_COMPILING_DUKTAPE)
1200#define DUK_EXTERNAL_DECL extern __declspec(dllexport)
1201#define DUK_EXTERNAL __declspec(dllexport)
1202#else
1203#define DUK_EXTERNAL_DECL extern __declspec(dllimport)
1204#define DUK_EXTERNAL should_not_happen
1205#endif
1206#if defined(DUK_SINGLE_FILE)
1207#define DUK_INTERNAL_DECL static
1208#define DUK_INTERNAL static
1209#else
1210#define DUK_INTERNAL_DECL extern
1211#define DUK_INTERNAL /*empty*/
1212#endif
1213#define DUK_LOCAL_DECL static
1214#define DUK_LOCAL static
1215#elif defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40000)
1216#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern
1217#define DUK_EXTERNAL __attribute__ ((visibility("default")))
1218#if defined(DUK_SINGLE_FILE)
1219#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1220/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
1221 * Clang. Based on documentation it should suffice to have the attribute
1222 * in the declaration only, but in practice some warnings are generated unless
1223 * the attribute is also applied to the definition.
1224 */
1225#define DUK_INTERNAL_DECL static __attribute__ ((unused))
1226#define DUK_INTERNAL static __attribute__ ((unused))
1227#else
1228#define DUK_INTERNAL_DECL static
1229#define DUK_INTERNAL static
1230#endif
1231#else
1232#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1233#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
1234#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
1235#else
1236#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern
1237#define DUK_INTERNAL __attribute__ ((visibility("hidden")))
1238#endif
1239#endif
1240#define DUK_LOCAL_DECL static
1241#define DUK_LOCAL static
1242#endif
1243
1244#if defined(DUK_F_MINGW)
1245#if defined(DUK_F_CPP)
1246#define DUK_USE_COMPILER_STRING "mingw++"
1247#else
1248#define DUK_USE_COMPILER_STRING "mingw"
1249#endif
1250#else
1251#if defined(DUK_F_CPP)
1252#define DUK_USE_COMPILER_STRING "g++"
1253#else
1254#define DUK_USE_COMPILER_STRING "gcc"
1255#endif
1256#endif
1257
1258#undef DUK_USE_VARIADIC_MACROS
1259#if defined(DUK_F_C99) || (defined(DUK_F_CPP11) && defined(__GNUC__))
1260#define DUK_USE_VARIADIC_MACROS
1261#endif
1262
1263#define DUK_USE_UNION_INITIALIZERS
1264
1265#undef DUK_USE_FLEX_C99
1266#undef DUK_USE_FLEX_ZEROSIZE
1267#undef DUK_USE_FLEX_ONESIZE
1268#if defined(DUK_F_C99)
1269#define DUK_USE_FLEX_C99
1270#else
1271#define DUK_USE_FLEX_ZEROSIZE
1272#endif
1273
1274/* Since 4.6 one can '#pragma GCC diagnostic push/pop'. */
1275#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40600)
1276#define DUK_USE_GCC_PRAGMAS
1277#else
1278#undef DUK_USE_GCC_PRAGMAS
1279#endif
1280
1281#define DUK_USE_PACK_GCC_ATTR
1282
1283/* Availability varies based on platform (between GCC 4.4 and 4.8), and there
1284 * are apparently some bugs in GCC 4.x. Check for GCC 5.0 before enabling
1285 * these to be safe.
1286 */
1287#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 50000L)
1288#define DUK_BSWAP64(x) ((duk_uint64_t) __builtin_bswap64((duk_uint64_t) (x)))
1289#define DUK_BSWAP32(x) ((duk_uint32_t) __builtin_bswap32((duk_uint32_t) (x)))
1290#define DUK_BSWAP16(x) ((duk_uint16_t) __builtin_bswap16((duk_uint16_t) (x)))
1291#endif
1292#elif defined(DUK_F_MSVC)
1293/* --- MSVC --- */
1294/* http://msdn.microsoft.com/en-us/library/aa235362(VS.60).aspx */
1295#define DUK_NORETURN(decl) __declspec(noreturn) decl
1296
1297/* XXX: DUK_UNREACHABLE for msvc? */
1298
1299#undef DUK_USE_BRANCH_HINTS
1300
1301/* XXX: DUK_LIKELY, DUK_UNLIKELY for msvc? */
1302/* XXX: DUK_NOINLINE, DUK_INLINE, DUK_ALWAYS_INLINE for msvc? */
1303
1304#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
1305/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
1306 * compiling Duktape or the application.
1307 */
1308#if defined(DUK_COMPILING_DUKTAPE)
1309#define DUK_EXTERNAL_DECL extern __declspec(dllexport)
1310#define DUK_EXTERNAL __declspec(dllexport)
1311#else
1312#define DUK_EXTERNAL_DECL extern __declspec(dllimport)
1313#define DUK_EXTERNAL should_not_happen
1314#endif
1315#if defined(DUK_SINGLE_FILE)
1316#define DUK_INTERNAL_DECL static
1317#define DUK_INTERNAL static
1318#else
1319#define DUK_INTERNAL_DECL extern
1320#define DUK_INTERNAL /*empty*/
1321#endif
1322#define DUK_LOCAL_DECL static
1323#define DUK_LOCAL static
1324#endif
1325
1326#if defined(DUK_F_CPP)
1327#define DUK_USE_COMPILER_STRING "msvc++"
1328#else
1329#define DUK_USE_COMPILER_STRING "msvc"
1330#endif
1331
1332#undef DUK_USE_VARIADIC_MACROS
1333#if defined(DUK_F_C99)
1334#define DUK_USE_VARIADIC_MACROS
1335#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
1336/* VS2005+ should have variadic macros even when they're not C99. */
1337#define DUK_USE_VARIADIC_MACROS
1338#endif
1339
1340#undef DUK_USE_UNION_INITIALIZERS
1341#if defined(_MSC_VER) && (_MSC_VER >= 1800)
1342/* VS2013+ supports union initializers but there's a bug involving union-inside-struct:
1343 * https://connect.microsoft.com/VisualStudio/feedback/details/805981
1344 * The bug was fixed (at least) in VS2015 so check for VS2015 for now:
1345 * https://blogs.msdn.microsoft.com/vcblog/2015/07/01/c-compiler-front-end-fixes-in-vs2015/
1346 * Manually tested using VS2013, CL reports 18.00.31101, so enable for VS2013 too.
1347 */
1348#define DUK_USE_UNION_INITIALIZERS
1349#endif
1350
1351#undef DUK_USE_FLEX_C99
1352#undef DUK_USE_FLEX_ZEROSIZE
1353#undef DUK_USE_FLEX_ONESIZE
1354#if defined(DUK_F_C99)
1355#define DUK_USE_FLEX_C99
1356#else
1357#define DUK_USE_FLEX_ZEROSIZE
1358#endif
1359
1360#undef DUK_USE_GCC_PRAGMAS
1361
1362#define DUK_USE_PACK_MSVC_PRAGMA
1363
1364/* These have been tested from VS2008 onwards; may work in older VS versions
1365 * too but not enabled by default.
1366 */
1367#if defined(_MSC_VER) && (_MSC_VER >= 1500)
1368#define DUK_NOINLINE __declspec(noinline)
1369#define DUK_INLINE __inline
1370#define DUK_ALWAYS_INLINE __forceinline
1371#endif
1372
1373#if defined(_MSC_VER) && (_MSC_VER >= 1900)
1374#define DUK_SNPRINTF snprintf
1375#define DUK_VSNPRINTF vsnprintf
1376#else
1377/* (v)snprintf() is missing before MSVC 2015. Note that _(v)snprintf() does
1378 * NOT NUL terminate on truncation, but Duktape code never assumes that.
1379 * http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010
1380 */
1381#define DUK_SNPRINTF _snprintf
1382#define DUK_VSNPRINTF _vsnprintf
1383#endif
1384
1385/* Avoid warning when doing DUK_UNREF(some_function). */
1386#if defined(_MSC_VER) && (_MSC_VER < 1500)
1387#pragma warning(disable: 4100 4101 4550 4551)
1388#define DUK_UNREF(x)
1389#else
1390#define DUK_UNREF(x) do { __pragma(warning(suppress:4100 4101 4550 4551)) (x); } while (0)
1391#endif
1392
1393/* Older versions of MSVC don't support the LL/ULL suffix. */
1394#define DUK_U64_CONSTANT(x) x##ui64
1395#define DUK_I64_CONSTANT(x) x##i64
1396#elif defined(DUK_F_EMSCRIPTEN)
1397/* --- Emscripten --- */
1398#define DUK_NORETURN(decl) decl __attribute__((noreturn))
1399
1400#if defined(__clang__) && defined(__has_builtin)
1401#if __has_builtin(__builtin_unreachable)
1402#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0)
1403#endif
1404#endif
1405
1406#define DUK_USE_BRANCH_HINTS
1407#define DUK_LIKELY(x) __builtin_expect((x), 1)
1408#define DUK_UNLIKELY(x) __builtin_expect((x), 0)
1409#if defined(__clang__) && defined(__has_builtin)
1410#if __has_builtin(__builtin_unpredictable)
1411#define DUK_UNPREDICTABLE(x) __builtin_unpredictable((x))
1412#endif
1413#endif
1414
1415#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1416#define DUK_NOINLINE __attribute__((noinline))
1417#define DUK_INLINE inline
1418#define DUK_ALWAYS_INLINE inline __attribute__((always_inline))
1419#endif
1420
1421#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern
1422#define DUK_EXTERNAL __attribute__ ((visibility("default")))
1423#if defined(DUK_SINGLE_FILE)
1424#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1425/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
1426 * Clang. Based on documentation it should suffice to have the attribute
1427 * in the declaration only, but in practice some warnings are generated unless
1428 * the attribute is also applied to the definition.
1429 */
1430#define DUK_INTERNAL_DECL static __attribute__ ((unused))
1431#define DUK_INTERNAL static __attribute__ ((unused))
1432#else
1433#define DUK_INTERNAL_DECL static
1434#define DUK_INTERNAL static
1435#endif
1436#else
1437#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1438#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
1439#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
1440#else
1441#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern
1442#define DUK_INTERNAL __attribute__ ((visibility("hidden")))
1443#endif
1444#endif
1445#define DUK_LOCAL_DECL static
1446#define DUK_LOCAL static
1447
1448#define DUK_USE_COMPILER_STRING "emscripten"
1449
1450#undef DUK_USE_VARIADIC_MACROS
1451#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1452#define DUK_USE_VARIADIC_MACROS
1453#endif
1454
1455#define DUK_USE_UNION_INITIALIZERS
1456
1457#undef DUK_USE_FLEX_C99
1458#undef DUK_USE_FLEX_ZEROSIZE
1459#undef DUK_USE_FLEX_ONESIZE
1460#if defined(DUK_F_C99)
1461#define DUK_USE_FLEX_C99
1462#else
1463#define DUK_USE_FLEX_ZEROSIZE
1464#endif
1465
1466#undef DUK_USE_GCC_PRAGMAS
1467#define DUK_USE_PACK_CLANG_ATTR
1468#elif defined(DUK_F_TINYC)
1469/* --- TinyC --- */
1470#undef DUK_USE_BRANCH_HINTS
1471
1472#if defined(DUK_F_CPP)
1473#define DUK_USE_COMPILER_STRING "tinyc++"
1474#else
1475#define DUK_USE_COMPILER_STRING "tinyc"
1476#endif
1477
1478/* http://bellard.org/tcc/tcc-doc.html#SEC7 */
1479#define DUK_USE_VARIADIC_MACROS
1480
1481#define DUK_USE_UNION_INITIALIZERS
1482
1483/* Most portable, wastes space */
1484#define DUK_USE_FLEX_ONESIZE
1485
1486/* Most portable, potentially wastes space */
1487#define DUK_USE_PACK_DUMMY_MEMBER
1488#elif defined(DUK_F_VBCC)
1489/* --- VBCC --- */
1490#undef DUK_USE_BRANCH_HINTS
1491
1492#if defined(DUK_F_CPP)
1493#define DUK_USE_COMPILER_STRING "vbcc-c++"
1494#else
1495#define DUK_USE_COMPILER_STRING "vbcc"
1496#endif
1497
1498#undef DUK_USE_VARIADIC_MACROS
1499#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1500#define DUK_USE_VARIADIC_MACROS
1501#endif
1502
1503/* VBCC supports C99 so check only for C99 for union initializer support.
1504 * Designated union initializers would possibly work even without a C99 check.
1505 */
1506#undef DUK_USE_UNION_INITIALIZERS
1507#if defined(DUK_F_C99)
1508#define DUK_USE_UNION_INITIALIZERS
1509#endif
1510
1511#define DUK_USE_FLEX_ZEROSIZE
1512#define DUK_USE_PACK_DUMMY_MEMBER
1513#elif defined(DUK_F_BCC)
1514/* --- Bruce's C compiler --- */
1515#undef DUK_USE_BRANCH_HINTS
1516
1517#if defined(DUK_F_CPP)
1518#define DUK_USE_COMPILER_STRING "bcc++"
1519#else
1520#define DUK_USE_COMPILER_STRING "bcc"
1521#endif
1522
1523/* Most portable */
1524#undef DUK_USE_VARIADIC_MACROS
1525
1526/* Most portable, wastes space */
1527#undef DUK_USE_UNION_INITIALIZERS
1528
1529/* Most portable, wastes space */
1530#define DUK_USE_FLEX_ONESIZE
1531
1532/* Most portable, potentially wastes space */
1533#define DUK_USE_PACK_DUMMY_MEMBER
1534
1535/* BCC, assume we're on x86. */
1536#if !defined(DUK_USE_BYTEORDER)
1537#define DUK_USE_BYTEORDER 1
1538#endif
1539#else
1540/* --- Generic --- */
1541#undef DUK_USE_BRANCH_HINTS
1542
1543#if defined(DUK_F_CPP)
1544#define DUK_USE_COMPILER_STRING "generic-c++"
1545#else
1546#define DUK_USE_COMPILER_STRING "generic"
1547#endif
1548
1549#undef DUK_USE_VARIADIC_MACROS
1550#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1551#define DUK_USE_VARIADIC_MACROS
1552#endif
1553
1554/* C++ doesn't have standard designated union initializers ({ .foo = 1 }). */
1555#undef DUK_USE_UNION_INITIALIZERS
1556#if defined(DUK_F_C99)
1557#define DUK_USE_UNION_INITIALIZERS
1558#endif
1559
1560/* Most portable, wastes space */
1561#define DUK_USE_FLEX_ONESIZE
1562
1563/* Most portable, potentially wastes space */
1564#define DUK_USE_PACK_DUMMY_MEMBER
1565#endif /* autodetect compiler */
1566
1567/* uclibc */
1568#if defined(__UCLIBC__)
1569#define DUK_F_UCLIBC
1570#endif
1571
1572/*
1573 * Wrapper typedefs and constants for integer types, also sanity check types.
1574 *
1575 * C99 typedefs are quite good but not always available, and we want to avoid
1576 * forcibly redefining the C99 typedefs. So, there are Duktape wrappers for
1577 * all C99 typedefs and Duktape code should only use these typedefs. Type
1578 * detection when C99 is not supported is best effort and may end up detecting
1579 * some types incorrectly.
1580 *
1581 * Pointer sizes are a portability problem: pointers to different types may
1582 * have a different size and function pointers are very difficult to manage
1583 * portably.
1584 *
1585 * http://en.wikipedia.org/wiki/C_data_types#Fixed-width_integer_types
1586 *
1587 * Note: there's an interesting corner case when trying to define minimum
1588 * signed integer value constants which leads to the current workaround of
1589 * defining e.g. -0x80000000 as (-0x7fffffffL - 1L). See doc/code-issues.txt
1590 * for a longer discussion.
1591 *
1592 * Note: avoid typecasts and computations in macro integer constants as they
1593 * can then no longer be used in macro relational expressions (such as
1594 * #if DUK_SIZE_MAX < 0xffffffffUL). There is internal code which relies on
1595 * being able to compare DUK_SIZE_MAX against a limit.
1596 */
1597
1598/* XXX: add feature options to force basic types from outside? */
1599
1600#if !defined(INT_MAX)
1601#error INT_MAX not defined
1602#endif
1603
1604/* Check that architecture is two's complement, standard C allows e.g.
1605 * INT_MIN to be -2**31+1 (instead of -2**31).
1606 */
1607#if defined(INT_MAX) && defined(INT_MIN)
1608#if INT_MAX != -(INT_MIN + 1)
1609#error platform does not seem complement of two
1610#endif
1611#else
1612#error cannot check complement of two
1613#endif
1614
1615/* Pointer size determination based on __WORDSIZE or architecture when
1616 * that's not available.
1617 */
1618#if defined(DUK_F_X86) || defined(DUK_F_X32) || \
1619 defined(DUK_F_M68K) || defined(DUK_F_PPC32) || \
1620 defined(DUK_F_BCC) || \
1621 (defined(__WORDSIZE) && (__WORDSIZE == 32)) || \
1622 ((defined(DUK_F_OLD_SOLARIS) || defined(DUK_F_AIX) || \
1623 defined(DUK_F_HPUX)) && defined(_ILP32)) || \
1624 defined(DUK_F_ARM32)
1625#define DUK_F_32BIT_PTRS
1626#elif defined(DUK_F_X64) || \
1627 (defined(__WORDSIZE) && (__WORDSIZE == 64)) || \
1628 ((defined(DUK_F_OLD_SOLARIS) || defined(DUK_F_AIX) || \
1629 defined(DUK_F_HPUX)) && defined(_LP64)) || \
1630 defined(DUK_F_ARM64)
1631#define DUK_F_64BIT_PTRS
1632#else
1633/* not sure, not needed with C99 anyway */
1634#endif
1635
1636/* Intermediate define for 'have inttypes.h' */
1637#undef DUK_F_HAVE_INTTYPES
1638#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
1639 !(defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC))
1640/* vbcc + AmigaOS has C99 but no inttypes.h */
1641#define DUK_F_HAVE_INTTYPES
1642#elif defined(__cplusplus) && (__cplusplus >= 201103L)
1643/* C++11 apparently ratified stdint.h */
1644#define DUK_F_HAVE_INTTYPES
1645#endif
1646
1647/* Basic integer typedefs and limits, preferably from inttypes.h, otherwise
1648 * through automatic detection.
1649 */
1650#if defined(DUK_F_HAVE_INTTYPES)
1651/* C99 or compatible */
1652
1653#define DUK_F_HAVE_64BIT
1654#include <inttypes.h>
1655
1656typedef uint8_t duk_uint8_t;
1657typedef int8_t duk_int8_t;
1658typedef uint16_t duk_uint16_t;
1659typedef int16_t duk_int16_t;
1660typedef uint32_t duk_uint32_t;
1661typedef int32_t duk_int32_t;
1662typedef uint64_t duk_uint64_t;
1663typedef int64_t duk_int64_t;
1664typedef uint_least8_t duk_uint_least8_t;
1665typedef int_least8_t duk_int_least8_t;
1666typedef uint_least16_t duk_uint_least16_t;
1667typedef int_least16_t duk_int_least16_t;
1668typedef uint_least32_t duk_uint_least32_t;
1669typedef int_least32_t duk_int_least32_t;
1670typedef uint_least64_t duk_uint_least64_t;
1671typedef int_least64_t duk_int_least64_t;
1672typedef uint_fast8_t duk_uint_fast8_t;
1673typedef int_fast8_t duk_int_fast8_t;
1674typedef uint_fast16_t duk_uint_fast16_t;
1675typedef int_fast16_t duk_int_fast16_t;
1676typedef uint_fast32_t duk_uint_fast32_t;
1677typedef int_fast32_t duk_int_fast32_t;
1678typedef uint_fast64_t duk_uint_fast64_t;
1679typedef int_fast64_t duk_int_fast64_t;
1680typedef uintptr_t duk_uintptr_t;
1681typedef intptr_t duk_intptr_t;
1682typedef uintmax_t duk_uintmax_t;
1683typedef intmax_t duk_intmax_t;
1684
1685#define DUK_UINT8_MIN 0
1686#define DUK_UINT8_MAX UINT8_MAX
1687#define DUK_INT8_MIN INT8_MIN
1688#define DUK_INT8_MAX INT8_MAX
1689#define DUK_UINT_LEAST8_MIN 0
1690#define DUK_UINT_LEAST8_MAX UINT_LEAST8_MAX
1691#define DUK_INT_LEAST8_MIN INT_LEAST8_MIN
1692#define DUK_INT_LEAST8_MAX INT_LEAST8_MAX
1693#define DUK_UINT_FAST8_MIN 0
1694#define DUK_UINT_FAST8_MAX UINT_FAST8_MAX
1695#define DUK_INT_FAST8_MIN INT_FAST8_MIN
1696#define DUK_INT_FAST8_MAX INT_FAST8_MAX
1697#define DUK_UINT16_MIN 0
1698#define DUK_UINT16_MAX UINT16_MAX
1699#define DUK_INT16_MIN INT16_MIN
1700#define DUK_INT16_MAX INT16_MAX
1701#define DUK_UINT_LEAST16_MIN 0
1702#define DUK_UINT_LEAST16_MAX UINT_LEAST16_MAX
1703#define DUK_INT_LEAST16_MIN INT_LEAST16_MIN
1704#define DUK_INT_LEAST16_MAX INT_LEAST16_MAX
1705#define DUK_UINT_FAST16_MIN 0
1706#define DUK_UINT_FAST16_MAX UINT_FAST16_MAX
1707#define DUK_INT_FAST16_MIN INT_FAST16_MIN
1708#define DUK_INT_FAST16_MAX INT_FAST16_MAX
1709#define DUK_UINT32_MIN 0
1710#define DUK_UINT32_MAX UINT32_MAX
1711#define DUK_INT32_MIN INT32_MIN
1712#define DUK_INT32_MAX INT32_MAX
1713#define DUK_UINT_LEAST32_MIN 0
1714#define DUK_UINT_LEAST32_MAX UINT_LEAST32_MAX
1715#define DUK_INT_LEAST32_MIN INT_LEAST32_MIN
1716#define DUK_INT_LEAST32_MAX INT_LEAST32_MAX
1717#define DUK_UINT_FAST32_MIN 0
1718#define DUK_UINT_FAST32_MAX UINT_FAST32_MAX
1719#define DUK_INT_FAST32_MIN INT_FAST32_MIN
1720#define DUK_INT_FAST32_MAX INT_FAST32_MAX
1721#define DUK_UINT64_MIN 0
1722#define DUK_UINT64_MAX UINT64_MAX
1723#define DUK_INT64_MIN INT64_MIN
1724#define DUK_INT64_MAX INT64_MAX
1725#define DUK_UINT_LEAST64_MIN 0
1726#define DUK_UINT_LEAST64_MAX UINT_LEAST64_MAX
1727#define DUK_INT_LEAST64_MIN INT_LEAST64_MIN
1728#define DUK_INT_LEAST64_MAX INT_LEAST64_MAX
1729#define DUK_UINT_FAST64_MIN 0
1730#define DUK_UINT_FAST64_MAX UINT_FAST64_MAX
1731#define DUK_INT_FAST64_MIN INT_FAST64_MIN
1732#define DUK_INT_FAST64_MAX INT_FAST64_MAX
1733
1734#define DUK_UINTPTR_MIN 0
1735#define DUK_UINTPTR_MAX UINTPTR_MAX
1736#define DUK_INTPTR_MIN INTPTR_MIN
1737#define DUK_INTPTR_MAX INTPTR_MAX
1738
1739#define DUK_UINTMAX_MIN 0
1740#define DUK_UINTMAX_MAX UINTMAX_MAX
1741#define DUK_INTMAX_MIN INTMAX_MIN
1742#define DUK_INTMAX_MAX INTMAX_MAX
1743
1744#define DUK_SIZE_MIN 0
1745#define DUK_SIZE_MAX SIZE_MAX
1746#undef DUK_SIZE_MAX_COMPUTED
1747
1748#else /* C99 types */
1749
1750/* When C99 types are not available, we use heuristic detection to get
1751 * the basic 8, 16, 32, and (possibly) 64 bit types. The fast/least
1752 * types are then assumed to be exactly the same for now: these could
1753 * be improved per platform but C99 types are very often now available.
1754 * 64-bit types are not available on all platforms; this is OK at least
1755 * on 32-bit platforms.
1756 *
1757 * This detection code is necessarily a bit hacky and can provide typedefs
1758 * and defines that won't work correctly on some exotic platform.
1759 */
1760
1761#if (defined(CHAR_BIT) && (CHAR_BIT == 8)) || \
1762 (defined(UCHAR_MAX) && (UCHAR_MAX == 255))
1763typedef unsigned char duk_uint8_t;
1764typedef signed char duk_int8_t;
1765#else
1766#error cannot detect 8-bit type
1767#endif
1768
1769#if defined(USHRT_MAX) && (USHRT_MAX == 65535UL)
1770typedef unsigned short duk_uint16_t;
1771typedef signed short duk_int16_t;
1772#elif defined(UINT_MAX) && (UINT_MAX == 65535UL)
1773/* On some platforms int is 16-bit but long is 32-bit (e.g. PureC) */
1774typedef unsigned int duk_uint16_t;
1775typedef signed int duk_int16_t;
1776#else
1777#error cannot detect 16-bit type
1778#endif
1779
1780#if defined(UINT_MAX) && (UINT_MAX == 4294967295UL)
1781typedef unsigned int duk_uint32_t;
1782typedef signed int duk_int32_t;
1783#elif defined(ULONG_MAX) && (ULONG_MAX == 4294967295UL)
1784/* On some platforms int is 16-bit but long is 32-bit (e.g. PureC) */
1785typedef unsigned long duk_uint32_t;
1786typedef signed long duk_int32_t;
1787#else
1788#error cannot detect 32-bit type
1789#endif
1790
1791/* 64-bit type detection is a bit tricky.
1792 *
1793 * ULLONG_MAX is a standard define. __LONG_LONG_MAX__ and __ULONG_LONG_MAX__
1794 * are used by at least GCC (even if system headers don't provide ULLONG_MAX).
1795 * Some GCC variants may provide __LONG_LONG_MAX__ but not __ULONG_LONG_MAX__.
1796 *
1797 * ULL / LL constants are rejected / warned about by some compilers, even if
1798 * the compiler has a 64-bit type and the compiler/system headers provide an
1799 * unsupported constant (ULL/LL)! Try to avoid using ULL / LL constants.
1800 * As a side effect we can only check that e.g. ULONG_MAX is larger than 32
1801 * bits but can't be sure it is exactly 64 bits. Self tests will catch such
1802 * cases.
1803 */
1804#undef DUK_F_HAVE_64BIT
1805#if !defined(DUK_F_HAVE_64BIT) && defined(ULONG_MAX)
1806#if (ULONG_MAX > 4294967295UL)
1807#define DUK_F_HAVE_64BIT
1808typedef unsigned long duk_uint64_t;
1809typedef signed long duk_int64_t;
1810#endif
1811#endif
1812#if !defined(DUK_F_HAVE_64BIT) && defined(ULLONG_MAX)
1813#if (ULLONG_MAX > 4294967295UL)
1814#define DUK_F_HAVE_64BIT
1815typedef unsigned long long duk_uint64_t;
1816typedef signed long long duk_int64_t;
1817#endif
1818#endif
1819#if !defined(DUK_F_HAVE_64BIT) && defined(__ULONG_LONG_MAX__)
1820#if (__ULONG_LONG_MAX__ > 4294967295UL)
1821#define DUK_F_HAVE_64BIT
1822typedef unsigned long long duk_uint64_t;
1823typedef signed long long duk_int64_t;
1824#endif
1825#endif
1826#if !defined(DUK_F_HAVE_64BIT) && defined(__LONG_LONG_MAX__)
1827#if (__LONG_LONG_MAX__ > 2147483647L)
1828#define DUK_F_HAVE_64BIT
1829typedef unsigned long long duk_uint64_t;
1830typedef signed long long duk_int64_t;
1831#endif
1832#endif
1833#if !defined(DUK_F_HAVE_64BIT) && defined(DUK_F_MINGW)
1834#define DUK_F_HAVE_64BIT
1835typedef unsigned long duk_uint64_t;
1836typedef signed long duk_int64_t;
1837#endif
1838#if !defined(DUK_F_HAVE_64BIT) && defined(DUK_F_MSVC)
1839#define DUK_F_HAVE_64BIT
1840typedef unsigned __int64 duk_uint64_t;
1841typedef signed __int64 duk_int64_t;
1842#endif
1843#if !defined(DUK_F_HAVE_64BIT)
1844/* cannot detect 64-bit type, not always needed so don't error */
1845#endif
1846
1847typedef duk_uint8_t duk_uint_least8_t;
1848typedef duk_int8_t duk_int_least8_t;
1849typedef duk_uint16_t duk_uint_least16_t;
1850typedef duk_int16_t duk_int_least16_t;
1851typedef duk_uint32_t duk_uint_least32_t;
1852typedef duk_int32_t duk_int_least32_t;
1853typedef duk_uint8_t duk_uint_fast8_t;
1854typedef duk_int8_t duk_int_fast8_t;
1855typedef duk_uint16_t duk_uint_fast16_t;
1856typedef duk_int16_t duk_int_fast16_t;
1857typedef duk_uint32_t duk_uint_fast32_t;
1858typedef duk_int32_t duk_int_fast32_t;
1859#if defined(DUK_F_HAVE_64BIT)
1860typedef duk_uint64_t duk_uint_least64_t;
1861typedef duk_int64_t duk_int_least64_t;
1862typedef duk_uint64_t duk_uint_fast64_t;
1863typedef duk_int64_t duk_int_fast64_t;
1864#endif
1865#if defined(DUK_F_HAVE_64BIT)
1866typedef duk_uint64_t duk_uintmax_t;
1867typedef duk_int64_t duk_intmax_t;
1868#else
1869typedef duk_uint32_t duk_uintmax_t;
1870typedef duk_int32_t duk_intmax_t;
1871#endif
1872
1873/* Note: the funny looking computations for signed minimum 16-bit, 32-bit, and
1874 * 64-bit values are intentional as the obvious forms (e.g. -0x80000000L) are
1875 * -not- portable. See code-issues.txt for a detailed discussion.
1876 */
1877#define DUK_UINT8_MIN 0UL
1878#define DUK_UINT8_MAX 0xffUL
1879#define DUK_INT8_MIN (-0x80L)
1880#define DUK_INT8_MAX 0x7fL
1881#define DUK_UINT_LEAST8_MIN 0UL
1882#define DUK_UINT_LEAST8_MAX 0xffUL
1883#define DUK_INT_LEAST8_MIN (-0x80L)
1884#define DUK_INT_LEAST8_MAX 0x7fL
1885#define DUK_UINT_FAST8_MIN 0UL
1886#define DUK_UINT_FAST8_MAX 0xffUL
1887#define DUK_INT_FAST8_MIN (-0x80L)
1888#define DUK_INT_FAST8_MAX 0x7fL
1889#define DUK_UINT16_MIN 0UL
1890#define DUK_UINT16_MAX 0xffffUL
1891#define DUK_INT16_MIN (-0x7fffL - 1L)
1892#define DUK_INT16_MAX 0x7fffL
1893#define DUK_UINT_LEAST16_MIN 0UL
1894#define DUK_UINT_LEAST16_MAX 0xffffUL
1895#define DUK_INT_LEAST16_MIN (-0x7fffL - 1L)
1896#define DUK_INT_LEAST16_MAX 0x7fffL
1897#define DUK_UINT_FAST16_MIN 0UL
1898#define DUK_UINT_FAST16_MAX 0xffffUL
1899#define DUK_INT_FAST16_MIN (-0x7fffL - 1L)
1900#define DUK_INT_FAST16_MAX 0x7fffL
1901#define DUK_UINT32_MIN 0UL
1902#define DUK_UINT32_MAX 0xffffffffUL
1903#define DUK_INT32_MIN (-0x7fffffffL - 1L)
1904#define DUK_INT32_MAX 0x7fffffffL
1905#define DUK_UINT_LEAST32_MIN 0UL
1906#define DUK_UINT_LEAST32_MAX 0xffffffffUL
1907#define DUK_INT_LEAST32_MIN (-0x7fffffffL - 1L)
1908#define DUK_INT_LEAST32_MAX 0x7fffffffL
1909#define DUK_UINT_FAST32_MIN 0UL
1910#define DUK_UINT_FAST32_MAX 0xffffffffUL
1911#define DUK_INT_FAST32_MIN (-0x7fffffffL - 1L)
1912#define DUK_INT_FAST32_MAX 0x7fffffffL
1913
1914/* 64-bit constants. Since LL / ULL constants are not always available,
1915 * use computed values. These values can't be used in preprocessor
1916 * comparisons; flag them as such.
1917 */
1918#if defined(DUK_F_HAVE_64BIT)
1919#define DUK_UINT64_MIN ((duk_uint64_t) 0)
1920#define DUK_UINT64_MAX ((duk_uint64_t) -1)
1921#define DUK_INT64_MIN ((duk_int64_t) (~(DUK_UINT64_MAX >> 1)))
1922#define DUK_INT64_MAX ((duk_int64_t) (DUK_UINT64_MAX >> 1))
1923#define DUK_UINT_LEAST64_MIN DUK_UINT64_MIN
1924#define DUK_UINT_LEAST64_MAX DUK_UINT64_MAX
1925#define DUK_INT_LEAST64_MIN DUK_INT64_MIN
1926#define DUK_INT_LEAST64_MAX DUK_INT64_MAX
1927#define DUK_UINT_FAST64_MIN DUK_UINT64_MIN
1928#define DUK_UINT_FAST64_MAX DUK_UINT64_MAX
1929#define DUK_INT_FAST64_MIN DUK_INT64_MIN
1930#define DUK_INT_FAST64_MAX DUK_INT64_MAX
1931#define DUK_UINT64_MIN_COMPUTED
1932#define DUK_UINT64_MAX_COMPUTED
1933#define DUK_INT64_MIN_COMPUTED
1934#define DUK_INT64_MAX_COMPUTED
1935#define DUK_UINT_LEAST64_MIN_COMPUTED
1936#define DUK_UINT_LEAST64_MAX_COMPUTED
1937#define DUK_INT_LEAST64_MIN_COMPUTED
1938#define DUK_INT_LEAST64_MAX_COMPUTED
1939#define DUK_UINT_FAST64_MIN_COMPUTED
1940#define DUK_UINT_FAST64_MAX_COMPUTED
1941#define DUK_INT_FAST64_MIN_COMPUTED
1942#define DUK_INT_FAST64_MAX_COMPUTED
1943#endif
1944
1945#if defined(DUK_F_HAVE_64BIT)
1946#define DUK_UINTMAX_MIN DUK_UINT64_MIN
1947#define DUK_UINTMAX_MAX DUK_UINT64_MAX
1948#define DUK_INTMAX_MIN DUK_INT64_MIN
1949#define DUK_INTMAX_MAX DUK_INT64_MAX
1950#define DUK_UINTMAX_MIN_COMPUTED
1951#define DUK_UINTMAX_MAX_COMPUTED
1952#define DUK_INTMAX_MIN_COMPUTED
1953#define DUK_INTMAX_MAX_COMPUTED
1954#else
1955#define DUK_UINTMAX_MIN 0UL
1956#define DUK_UINTMAX_MAX 0xffffffffUL
1957#define DUK_INTMAX_MIN (-0x7fffffffL - 1L)
1958#define DUK_INTMAX_MAX 0x7fffffffL
1959#endif
1960
1961/* This detection is not very reliable. */
1962#if defined(DUK_F_32BIT_PTRS)
1963typedef duk_int32_t duk_intptr_t;
1964typedef duk_uint32_t duk_uintptr_t;
1965#define DUK_UINTPTR_MIN DUK_UINT32_MIN
1966#define DUK_UINTPTR_MAX DUK_UINT32_MAX
1967#define DUK_INTPTR_MIN DUK_INT32_MIN
1968#define DUK_INTPTR_MAX DUK_INT32_MAX
1969#elif defined(DUK_F_64BIT_PTRS) && defined(DUK_F_HAVE_64BIT)
1970typedef duk_int64_t duk_intptr_t;
1971typedef duk_uint64_t duk_uintptr_t;
1972#define DUK_UINTPTR_MIN DUK_UINT64_MIN
1973#define DUK_UINTPTR_MAX DUK_UINT64_MAX
1974#define DUK_INTPTR_MIN DUK_INT64_MIN
1975#define DUK_INTPTR_MAX DUK_INT64_MAX
1976#define DUK_UINTPTR_MIN_COMPUTED
1977#define DUK_UINTPTR_MAX_COMPUTED
1978#define DUK_INTPTR_MIN_COMPUTED
1979#define DUK_INTPTR_MAX_COMPUTED
1980#else
1981#error cannot determine intptr type
1982#endif
1983
1984/* SIZE_MAX may be missing so use an approximate value for it. */
1985#undef DUK_SIZE_MAX_COMPUTED
1986#if !defined(SIZE_MAX)
1987#define DUK_SIZE_MAX_COMPUTED
1988#define SIZE_MAX ((size_t) (-1))
1989#endif
1990#define DUK_SIZE_MIN 0
1991#define DUK_SIZE_MAX SIZE_MAX
1992
1993#endif /* C99 types */
1994
1995/* A few types are assumed to always exist. */
1996typedef size_t duk_size_t;
1997typedef ptrdiff_t duk_ptrdiff_t;
1998
1999/* The best type for an "all around int" in Duktape internals is "at least
2000 * 32 bit signed integer" which is most convenient. Same for unsigned type.
2001 * Prefer 'int' when large enough, as it is almost always a convenient type.
2002 */
2003#if defined(UINT_MAX) && (UINT_MAX >= 0xffffffffUL)
2004typedef int duk_int_t;
2005typedef unsigned int duk_uint_t;
2006#define DUK_INT_MIN INT_MIN
2007#define DUK_INT_MAX INT_MAX
2008#define DUK_UINT_MIN 0
2009#define DUK_UINT_MAX UINT_MAX
2010#else
2011typedef duk_int_fast32_t duk_int_t;
2012typedef duk_uint_fast32_t duk_uint_t;
2013#define DUK_INT_MIN DUK_INT_FAST32_MIN
2014#define DUK_INT_MAX DUK_INT_FAST32_MAX
2015#define DUK_UINT_MIN DUK_UINT_FAST32_MIN
2016#define DUK_UINT_MAX DUK_UINT_FAST32_MAX
2017#endif
2018
2019/* Same as 'duk_int_t' but guaranteed to be a 'fast' variant if this
2020 * distinction matters for the CPU. These types are used mainly in the
2021 * executor where it might really matter.
2022 */
2023typedef duk_int_fast32_t duk_int_fast_t;
2024typedef duk_uint_fast32_t duk_uint_fast_t;
2025#define DUK_INT_FAST_MIN DUK_INT_FAST32_MIN
2026#define DUK_INT_FAST_MAX DUK_INT_FAST32_MAX
2027#define DUK_UINT_FAST_MIN DUK_UINT_FAST32_MIN
2028#define DUK_UINT_FAST_MAX DUK_UINT_FAST32_MAX
2029
2030/* Small integers (16 bits or more) can fall back to the 'int' type, but
2031 * have a typedef so they are marked "small" explicitly.
2032 */
2033typedef int duk_small_int_t;
2034typedef unsigned int duk_small_uint_t;
2035#define DUK_SMALL_INT_MIN INT_MIN
2036#define DUK_SMALL_INT_MAX INT_MAX
2037#define DUK_SMALL_UINT_MIN 0
2038#define DUK_SMALL_UINT_MAX UINT_MAX
2039
2040/* Fast variants of small integers, again for really fast paths like the
2041 * executor.
2042 */
2043typedef duk_int_fast16_t duk_small_int_fast_t;
2044typedef duk_uint_fast16_t duk_small_uint_fast_t;
2045#define DUK_SMALL_INT_FAST_MIN DUK_INT_FAST16_MIN
2046#define DUK_SMALL_INT_FAST_MAX DUK_INT_FAST16_MAX
2047#define DUK_SMALL_UINT_FAST_MIN DUK_UINT_FAST16_MIN
2048#define DUK_SMALL_UINT_FAST_MAX DUK_UINT_FAST16_MAX
2049
2050/* Boolean values are represented with the platform 'unsigned int'. */
2051typedef duk_small_uint_t duk_bool_t;
2052#define DUK_BOOL_MIN DUK_SMALL_UINT_MIN
2053#define DUK_BOOL_MAX DUK_SMALL_UINT_MAX
2054
2055/* Index values must have at least 32-bit signed range. */
2056typedef duk_int_t duk_idx_t;
2057#define DUK_IDX_MIN DUK_INT_MIN
2058#define DUK_IDX_MAX DUK_INT_MAX
2059
2060/* Unsigned index variant. */
2061typedef duk_uint_t duk_uidx_t;
2062#define DUK_UIDX_MIN DUK_UINT_MIN
2063#define DUK_UIDX_MAX DUK_UINT_MAX
2064
2065/* Array index values, could be exact 32 bits.
2066 * Currently no need for signed duk_arridx_t.
2067 */
2068typedef duk_uint_t duk_uarridx_t;
2069#define DUK_UARRIDX_MIN DUK_UINT_MIN
2070#define DUK_UARRIDX_MAX DUK_UINT_MAX
2071
2072/* Duktape/C function return value, platform int is enough for now to
2073 * represent 0, 1, or negative error code. Must be compatible with
2074 * assigning truth values (e.g. duk_ret_t rc = (foo == bar);).
2075 */
2076typedef duk_small_int_t duk_ret_t;
2077#define DUK_RET_MIN DUK_SMALL_INT_MIN
2078#define DUK_RET_MAX DUK_SMALL_INT_MAX
2079
2080/* Error codes are represented with platform int. High bits are used
2081 * for flags and such, so 32 bits are needed.
2082 */
2083typedef duk_int_t duk_errcode_t;
2084#define DUK_ERRCODE_MIN DUK_INT_MIN
2085#define DUK_ERRCODE_MAX DUK_INT_MAX
2086
2087/* Codepoint type. Must be 32 bits or more because it is used also for
2088 * internal codepoints. The type is signed because negative codepoints
2089 * are used as internal markers (e.g. to mark EOF or missing argument).
2090 * (X)UTF-8/CESU-8 encode/decode take and return an unsigned variant to
2091 * ensure duk_uint32_t casts back and forth nicely. Almost everything
2092 * else uses the signed one.
2093 */
2094typedef duk_int_t duk_codepoint_t;
2095typedef duk_uint_t duk_ucodepoint_t;
2096#define DUK_CODEPOINT_MIN DUK_INT_MIN
2097#define DUK_CODEPOINT_MAX DUK_INT_MAX
2098#define DUK_UCODEPOINT_MIN DUK_UINT_MIN
2099#define DUK_UCODEPOINT_MAX DUK_UINT_MAX
2100
2101/* IEEE float/double typedef. */
2102typedef float duk_float_t;
2103typedef double duk_double_t;
2104
2105/* We're generally assuming that we're working on a platform with a 32-bit
2106 * address space. If DUK_SIZE_MAX is a typecast value (which is necessary
2107 * if SIZE_MAX is missing), the check must be avoided because the
2108 * preprocessor can't do a comparison.
2109 */
2110#if !defined(DUK_SIZE_MAX)
2111#error DUK_SIZE_MAX is undefined, probably missing SIZE_MAX
2112#elif !defined(DUK_SIZE_MAX_COMPUTED)
2113#if DUK_SIZE_MAX < 0xffffffffUL
2114/* On some systems SIZE_MAX can be smaller than max unsigned 32-bit value
2115 * which seems incorrect if size_t is (at least) an unsigned 32-bit type.
2116 * However, it doesn't seem useful to error out compilation if this is the
2117 * case.
2118 */
2119#endif
2120#endif
2121
2122/* Type used in public API declarations and user code. Typedef maps to
2123 * 'struct duk_hthread' like the 'duk_hthread' typedef which is used
2124 * exclusively in internals.
2125 */
2126typedef struct duk_hthread duk_context;
2127
2128/* Check whether we should use 64-bit integers or not.
2129 *
2130 * Quite incomplete now. Use 64-bit types if detected (C99 or other detection)
2131 * unless they are known to be unreliable. For instance, 64-bit types are
2132 * available on VBCC but seem to misbehave.
2133 */
2134#if defined(DUK_F_HAVE_64BIT) && !defined(DUK_F_VBCC)
2135#define DUK_USE_64BIT_OPS
2136#else
2137#undef DUK_USE_64BIT_OPS
2138#endif
2139
2140/*
2141 * Fill-ins for platform, architecture, and compiler
2142 */
2143
2144/* An abort()-like primitive is needed by the default fatal error handler. */
2145#if !defined(DUK_ABORT)
2146#define DUK_ABORT abort
2147#endif
2148
2149#if !defined(DUK_SETJMP)
2150#define DUK_JMPBUF_TYPE jmp_buf
2151#define DUK_SETJMP(jb) setjmp((jb))
2152#define DUK_LONGJMP(jb) longjmp((jb), 1)
2153#endif
2154
2155#if 0
2156/* sigsetjmp() alternative */
2157#define DUK_JMPBUF_TYPE sigjmp_buf
2158#define DUK_SETJMP(jb) sigsetjmp((jb))
2159#define DUK_LONGJMP(jb) siglongjmp((jb), 1)
2160#endif
2161
2162/* Special naming to avoid conflict with e.g. DUK_FREE() in duk_heap.h
2163 * (which is unfortunately named). May sometimes need replacement, e.g.
2164 * some compilers don't handle zero length or NULL correctly in realloc().
2165 */
2166#if !defined(DUK_ANSI_MALLOC)
2167#define DUK_ANSI_MALLOC malloc
2168#endif
2169#if !defined(DUK_ANSI_REALLOC)
2170#define DUK_ANSI_REALLOC realloc
2171#endif
2172#if !defined(DUK_ANSI_CALLOC)
2173#define DUK_ANSI_CALLOC calloc
2174#endif
2175#if !defined(DUK_ANSI_FREE)
2176#define DUK_ANSI_FREE free
2177#endif
2178
2179/* ANSI C (various versions) and some implementations require that the
2180 * pointer arguments to memset(), memcpy(), and memmove() be valid values
2181 * even when byte size is 0 (even a NULL pointer is considered invalid in
2182 * this context). Zero-size operations as such are allowed, as long as their
2183 * pointer arguments point to a valid memory area. The DUK_MEMSET(),
2184 * DUK_MEMCPY(), and DUK_MEMMOVE() macros require this same behavior, i.e.:
2185 * (1) pointers must be valid and non-NULL, (2) zero size must otherwise be
2186 * allowed. If these are not fulfilled, a macro wrapper is needed.
2187 *
2188 * http://stackoverflow.com/questions/5243012/is-it-guaranteed-to-be-safe-to-perform-memcpy0-0-0
2189 * http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-October/011065.html
2190 *
2191 * Not sure what's the required behavior when a pointer points just past the
2192 * end of a buffer, which often happens in practice (e.g. zero size memmoves).
2193 * For example, if allocation size is 3, the following pointer would not
2194 * technically point to a valid memory byte:
2195 *
2196 * <-- alloc -->
2197 * | 0 | 1 | 2 | .....
2198 * ^-- p=3, points after last valid byte (2)
2199 */
2200#if !defined(DUK_MEMCPY)
2201#if defined(DUK_F_UCLIBC)
2202/* Old uclibcs have a broken memcpy so use memmove instead (this is overly wide
2203 * now on purpose): http://lists.uclibc.org/pipermail/uclibc-cvs/2008-October/025511.html
2204 */
2205#define DUK_MEMCPY memmove
2206#else
2207#define DUK_MEMCPY memcpy
2208#endif
2209#endif
2210#if !defined(DUK_MEMMOVE)
2211#define DUK_MEMMOVE memmove
2212#endif
2213#if !defined(DUK_MEMCMP)
2214#define DUK_MEMCMP memcmp
2215#endif
2216#if !defined(DUK_MEMSET)
2217#define DUK_MEMSET memset
2218#endif
2219#if !defined(DUK_STRLEN)
2220#define DUK_STRLEN strlen
2221#endif
2222#if !defined(DUK_STRCMP)
2223#define DUK_STRCMP strcmp
2224#endif
2225#if !defined(DUK_STRNCMP)
2226#define DUK_STRNCMP strncmp
2227#endif
2228#if !defined(DUK_SPRINTF)
2229#define DUK_SPRINTF sprintf
2230#endif
2231#if !defined(DUK_SNPRINTF)
2232/* snprintf() is technically not part of C89 but usually available. */
2233#define DUK_SNPRINTF snprintf
2234#endif
2235#if !defined(DUK_VSPRINTF)
2236#define DUK_VSPRINTF vsprintf
2237#endif
2238#if !defined(DUK_VSNPRINTF)
2239/* vsnprintf() is technically not part of C89 but usually available. */
2240#define DUK_VSNPRINTF vsnprintf
2241#endif
2242#if !defined(DUK_SSCANF)
2243#define DUK_SSCANF sscanf
2244#endif
2245#if !defined(DUK_VSSCANF)
2246#define DUK_VSSCANF vsscanf
2247#endif
2248#if !defined(DUK_MEMZERO)
2249#define DUK_MEMZERO(p,n) DUK_MEMSET((p), 0, (n))
2250#endif
2251
2252#if !defined(DUK_DOUBLE_INFINITY)
2253#undef DUK_USE_COMPUTED_INFINITY
2254#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION < 40600)
2255/* GCC older than 4.6: avoid overflow warnings related to using INFINITY */
2256#define DUK_DOUBLE_INFINITY (__builtin_inf())
2257#elif defined(INFINITY)
2258#define DUK_DOUBLE_INFINITY ((double) INFINITY)
2259#elif !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) && !defined(DUK_F_BCC) && \
2260 !defined(DUK_F_OLD_SOLARIS) && !defined(DUK_F_AIX)
2261#define DUK_DOUBLE_INFINITY (1.0 / 0.0)
2262#else
2263/* In VBCC (1.0 / 0.0) results in a warning and 0.0 instead of infinity.
2264 * Use a computed infinity (initialized when a heap is created at the
2265 * latest).
2266 */
2267#define DUK_USE_COMPUTED_INFINITY
2268#define DUK_DOUBLE_INFINITY duk_computed_infinity
2269#endif
2270#endif
2271
2272#if !defined(DUK_DOUBLE_NAN)
2273#undef DUK_USE_COMPUTED_NAN
2274#if defined(NAN)
2275#define DUK_DOUBLE_NAN NAN
2276#elif !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) && !defined(DUK_F_BCC) && \
2277 !defined(DUK_F_OLD_SOLARIS) && !defined(DUK_F_AIX)
2278#define DUK_DOUBLE_NAN (0.0 / 0.0)
2279#else
2280/* In VBCC (0.0 / 0.0) results in a warning and 0.0 instead of NaN.
2281 * In MSVC (VS2010 Express) (0.0 / 0.0) results in a compile error.
2282 * Use a computed NaN (initialized when a heap is created at the
2283 * latest).
2284 */
2285#define DUK_USE_COMPUTED_NAN
2286#define DUK_DOUBLE_NAN duk_computed_nan
2287#endif
2288#endif
2289
2290/* Many platforms are missing fpclassify() and friends, so use replacements
2291 * if necessary. The replacement constants (FP_NAN etc) can be anything but
2292 * match Linux constants now.
2293 */
2294#undef DUK_USE_REPL_FPCLASSIFY
2295#undef DUK_USE_REPL_SIGNBIT
2296#undef DUK_USE_REPL_ISFINITE
2297#undef DUK_USE_REPL_ISNAN
2298#undef DUK_USE_REPL_ISINF
2299
2300/* Complex condition broken into separate parts. */
2301#undef DUK_F_USE_REPL_ALL
2302#if !(defined(FP_NAN) && defined(FP_INFINITE) && defined(FP_ZERO) && \
2303 defined(FP_SUBNORMAL) && defined(FP_NORMAL))
2304/* Missing some obvious constants. */
2305#define DUK_F_USE_REPL_ALL
2306#elif defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC)
2307/* VBCC is missing the built-ins even in C99 mode (perhaps a header issue). */
2308#define DUK_F_USE_REPL_ALL
2309#elif defined(DUK_F_AMIGAOS) && defined(DUK_F_M68K)
2310/* AmigaOS + M68K seems to have math issues even when using GCC cross
2311 * compilation. Use replacements for all AmigaOS versions on M68K
2312 * regardless of compiler.
2313 */
2314#define DUK_F_USE_REPL_ALL
2315#elif defined(DUK_F_FREEBSD) && defined(DUK_F_CLANG)
2316/* Placeholder fix for (detection is wider than necessary):
2317 * http://llvm.org/bugs/show_bug.cgi?id=17788
2318 */
2319#define DUK_F_USE_REPL_ALL
2320#elif defined(DUK_F_UCLIBC)
2321/* At least some uclibc versions have broken floating point math. For
2322 * example, fpclassify() can incorrectly classify certain NaN formats.
2323 * To be safe, use replacements.
2324 */
2325#define DUK_F_USE_REPL_ALL
2326#elif defined(DUK_F_AIX)
2327/* Older versions may be missing isnan(), etc. */
2328#define DUK_F_USE_REPL_ALL
2329#endif
2330
2331#if defined(DUK_F_USE_REPL_ALL)
2332#define DUK_USE_REPL_FPCLASSIFY
2333#define DUK_USE_REPL_SIGNBIT
2334#define DUK_USE_REPL_ISFINITE
2335#define DUK_USE_REPL_ISNAN
2336#define DUK_USE_REPL_ISINF
2337#define DUK_FPCLASSIFY duk_repl_fpclassify
2338#define DUK_SIGNBIT duk_repl_signbit
2339#define DUK_ISFINITE duk_repl_isfinite
2340#define DUK_ISNAN duk_repl_isnan
2341#define DUK_ISINF duk_repl_isinf
2342#define DUK_FP_NAN 0
2343#define DUK_FP_INFINITE 1
2344#define DUK_FP_ZERO 2
2345#define DUK_FP_SUBNORMAL 3
2346#define DUK_FP_NORMAL 4
2347#else
2348#define DUK_FPCLASSIFY fpclassify
2349#define DUK_SIGNBIT signbit
2350#define DUK_ISFINITE isfinite
2351#define DUK_ISNAN isnan
2352#define DUK_ISINF isinf
2353#define DUK_FP_NAN FP_NAN
2354#define DUK_FP_INFINITE FP_INFINITE
2355#define DUK_FP_ZERO FP_ZERO
2356#define DUK_FP_SUBNORMAL FP_SUBNORMAL
2357#define DUK_FP_NORMAL FP_NORMAL
2358#endif
2359
2360#if defined(DUK_F_USE_REPL_ALL)
2361#undef DUK_F_USE_REPL_ALL
2362#endif
2363
2364/* These functions don't currently need replacement but are wrapped for
2365 * completeness. Because these are used as function pointers, they need
2366 * to be defined as concrete C functions (not macros).
2367 */
2368#if !defined(DUK_FABS)
2369#define DUK_FABS fabs
2370#endif
2371#if !defined(DUK_FLOOR)
2372#define DUK_FLOOR floor
2373#endif
2374#if !defined(DUK_CEIL)
2375#define DUK_CEIL ceil
2376#endif
2377#if !defined(DUK_FMOD)
2378#define DUK_FMOD fmod
2379#endif
2380#if !defined(DUK_POW)
2381#define DUK_POW pow
2382#endif
2383#if !defined(DUK_ACOS)
2384#define DUK_ACOS acos
2385#endif
2386#if !defined(DUK_ASIN)
2387#define DUK_ASIN asin
2388#endif
2389#if !defined(DUK_ATAN)
2390#define DUK_ATAN atan
2391#endif
2392#if !defined(DUK_ATAN2)
2393#define DUK_ATAN2 atan2
2394#endif
2395#if !defined(DUK_SIN)
2396#define DUK_SIN sin
2397#endif
2398#if !defined(DUK_COS)
2399#define DUK_COS cos
2400#endif
2401#if !defined(DUK_TAN)
2402#define DUK_TAN tan
2403#endif
2404#if !defined(DUK_EXP)
2405#define DUK_EXP exp
2406#endif
2407#if !defined(DUK_LOG)
2408#define DUK_LOG log
2409#endif
2410#if !defined(DUK_SQRT)
2411#define DUK_SQRT sqrt
2412#endif
2413
2414/* The functions below exist only in C99/C++11 or later and need a workaround
2415 * for platforms that don't include them. MSVC isn't detected as C99, but
2416 * these functions also exist in MSVC 2013 and later so include a clause for
2417 * that too. Android doesn't have log2; disable all of these for Android.
2418 */
2419#if (defined(DUK_F_C99) || defined(DUK_F_CPP11) || (defined(_MSC_VER) && (_MSC_VER >= 1800))) && \
2420 !defined(DUK_F_ANDROID) && !defined(DUK_F_MINT)
2421#if !defined(DUK_CBRT)
2422#define DUK_CBRT cbrt
2423#endif
2424#if !defined(DUK_LOG2)
2425#define DUK_LOG2 log2
2426#endif
2427#if !defined(DUK_LOG10)
2428#define DUK_LOG10 log10
2429#endif
2430#if !defined(DUK_TRUNC)
2431#define DUK_TRUNC trunc
2432#endif
2433#endif /* DUK_F_C99 etc */
2434
2435/* NetBSD 6.0 x86 (at least) has a few problems with pow() semantics,
2436 * see test-bug-netbsd-math-pow.js. MinGW has similar (but different)
2437 * issues, see test-bug-mingw-math-issues.js. Enable pow() workarounds
2438 * for these targets.
2439 */
2440#undef DUK_USE_POW_WORKAROUNDS
2441#if defined(DUK_F_NETBSD) || defined(DUK_F_MINGW)
2442#define DUK_USE_POW_WORKAROUNDS
2443#endif
2444
2445/* Similar workarounds for atan2() semantics issues. MinGW issues are
2446 * documented in test-bug-mingw-math-issues.js.
2447 */
2448#undef DUK_USE_ATAN2_WORKAROUNDS
2449#if defined(DUK_F_MINGW)
2450#define DUK_USE_ATAN2_WORKAROUNDS
2451#endif
2452
2453/* Rely as little as possible on compiler behavior for NaN comparison,
2454 * signed zero handling, etc. Currently never activated but may be needed
2455 * for broken compilers.
2456 */
2457#undef DUK_USE_PARANOID_MATH
2458
2459/* There was a curious bug where test-bi-date-canceling.js would fail e.g.
2460 * on 64-bit Ubuntu, gcc-4.8.1, -m32, and no -std=c99. Some date computations
2461 * using doubles would be optimized which then broke some corner case tests.
2462 * The problem goes away by adding 'volatile' to the datetime computations.
2463 * Not sure what the actual triggering conditions are, but using this on
2464 * non-C99 systems solves the known issues and has relatively little cost
2465 * on other platforms.
2466 */
2467#undef DUK_USE_PARANOID_DATE_COMPUTATION
2468#if !defined(DUK_F_C99)
2469#define DUK_USE_PARANOID_DATE_COMPUTATION
2470#endif
2471
2472/*
2473 * Byte order and double memory layout detection
2474 *
2475 * Endianness detection is a major portability hassle because the macros
2476 * and headers are not standardized. There's even variance across UNIX
2477 * platforms. Even with "standard" headers, details like underscore count
2478 * varies between platforms, e.g. both __BYTE_ORDER and _BYTE_ORDER are used
2479 * (Crossbridge has a single underscore, for instance).
2480 *
2481 * The checks below are structured with this in mind: several approaches are
2482 * used, and at the end we check if any of them worked. This allows generic
2483 * approaches to be tried first, and platform/compiler specific hacks tried
2484 * last. As a last resort, the user can force a specific endianness, as it's
2485 * not likely that automatic detection will work on the most exotic platforms.
2486 *
2487 * Duktape supports little and big endian machines. There's also support
2488 * for a hybrid used by some ARM machines where integers are little endian
2489 * but IEEE double values use a mixed order (12345678 -> 43218765). This
2490 * byte order for doubles is referred to as "mixed endian".
2491 */
2492
2493/* GCC and Clang provide endianness defines as built-in predefines, with
2494 * leading and trailing double underscores (e.g. __BYTE_ORDER__). See
2495 * output of "make gccpredefs" and "make clangpredefs". Clang doesn't
2496 * seem to provide __FLOAT_WORD_ORDER__; assume not mixed endian for clang.
2497 * http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
2498 */
2499#if !defined(DUK_USE_BYTEORDER) && defined(__BYTE_ORDER__)
2500#if defined(__ORDER_LITTLE_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
2501#if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_LITTLE_ENDIAN__)
2502#define DUK_USE_BYTEORDER 1
2503#elif defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
2504#define DUK_USE_BYTEORDER 2
2505#elif !defined(__FLOAT_WORD_ORDER__)
2506/* Float word order not known, assume not a hybrid. */
2507#define DUK_USE_BYTEORDER 1
2508#else
2509/* Byte order is little endian but cannot determine IEEE double word order. */
2510#endif /* float word order */
2511#elif defined(__ORDER_BIG_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
2512#if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
2513#define DUK_USE_BYTEORDER 3
2514#elif !defined(__FLOAT_WORD_ORDER__)
2515/* Float word order not known, assume not a hybrid. */
2516#define DUK_USE_BYTEORDER 3
2517#else
2518/* Byte order is big endian but cannot determine IEEE double word order. */
2519#endif /* float word order */
2520#else
2521/* Cannot determine byte order; __ORDER_PDP_ENDIAN__ is related to 32-bit
2522 * integer ordering and is not relevant.
2523 */
2524#endif /* integer byte order */
2525#endif /* !defined(DUK_USE_BYTEORDER) && defined(__BYTE_ORDER__) */
2526
2527/* More or less standard endianness predefines provided by header files.
2528 * The ARM hybrid case is detected by assuming that __FLOAT_WORD_ORDER
2529 * will be big endian, see: http://lists.mysql.com/internals/443.
2530 * On some platforms some defines may be present with an empty value which
2531 * causes comparisons to fail: https://github.com/svaarala/duktape/issues/453.
2532 */
2533#if !defined(DUK_USE_BYTEORDER)
2534#if defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && (__BYTE_ORDER == __LITTLE_ENDIAN) || \
2535 defined(_BYTE_ORDER) && defined(_LITTLE_ENDIAN) && (_BYTE_ORDER == _LITTLE_ENDIAN) || \
2536 defined(__LITTLE_ENDIAN__)
2537#if defined(__FLOAT_WORD_ORDER) && defined(__LITTLE_ENDIAN) && (__FLOAT_WORD_ORDER == __LITTLE_ENDIAN) || \
2538 defined(_FLOAT_WORD_ORDER) && defined(_LITTLE_ENDIAN) && (_FLOAT_WORD_ORDER == _LITTLE_ENDIAN)
2539#define DUK_USE_BYTEORDER 1
2540#elif defined(__FLOAT_WORD_ORDER) && defined(__BIG_ENDIAN) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN) || \
2541 defined(_FLOAT_WORD_ORDER) && defined(_BIG_ENDIAN) && (_FLOAT_WORD_ORDER == _BIG_ENDIAN)
2542#define DUK_USE_BYTEORDER 2
2543#elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER)
2544/* Float word order not known, assume not a hybrid. */
2545#define DUK_USE_BYTEORDER 1
2546#else
2547/* Byte order is little endian but cannot determine IEEE double word order. */
2548#endif /* float word order */
2549#elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && (__BYTE_ORDER == __BIG_ENDIAN) || \
2550 defined(_BYTE_ORDER) && defined(_BIG_ENDIAN) && (_BYTE_ORDER == _BIG_ENDIAN) || \
2551 defined(__BIG_ENDIAN__)
2552#if defined(__FLOAT_WORD_ORDER) && defined(__BIG_ENDIAN) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN) || \
2553 defined(_FLOAT_WORD_ORDER) && defined(_BIG_ENDIAN) && (_FLOAT_WORD_ORDER == _BIG_ENDIAN)
2554#define DUK_USE_BYTEORDER 3
2555#elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER)
2556/* Float word order not known, assume not a hybrid. */
2557#define DUK_USE_BYTEORDER 3
2558#else
2559/* Byte order is big endian but cannot determine IEEE double word order. */
2560#endif /* float word order */
2561#else
2562/* Cannot determine byte order. */
2563#endif /* integer byte order */
2564#endif /* !defined(DUK_USE_BYTEORDER) */
2565
2566/* QNX gcc cross compiler seems to define e.g. __LITTLEENDIAN__ or __BIGENDIAN__:
2567 * $ /opt/qnx650/host/linux/x86/usr/bin/i486-pc-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2568 * 67:#define __LITTLEENDIAN__ 1
2569 * $ /opt/qnx650/host/linux/x86/usr/bin/mips-unknown-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2570 * 81:#define __BIGENDIAN__ 1
2571 * $ /opt/qnx650/host/linux/x86/usr/bin/arm-unknown-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2572 * 70:#define __LITTLEENDIAN__ 1
2573 */
2574#if !defined(DUK_USE_BYTEORDER)
2575#if defined(__LITTLEENDIAN__)
2576#define DUK_USE_BYTEORDER 1
2577#elif defined(__BIGENDIAN__)
2578#define DUK_USE_BYTEORDER 3
2579#endif
2580#endif
2581
2582/*
2583 * Alignment requirement and support for unaligned accesses
2584 *
2585 * Assume unaligned accesses are not supported unless specifically allowed
2586 * in the target platform. Some platforms may support unaligned accesses
2587 * but alignment to 4 or 8 may still be desirable. Note that unaligned
2588 * accesses (and even pointers) relative to natural alignment (regardless
2589 * of target alignment) are technically undefined behavior and thus
2590 * compiler/architecture specific.
2591 */
2592
2593/* If not forced, use safe default for alignment. */
2594#if !defined(DUK_USE_ALIGN_BY)
2595#define DUK_USE_ALIGN_BY 8
2596#endif
2597
2598/* Compiler specific hackery needed to force struct size to match alignment,
2599 * see e.g. duk_hbuffer.h.
2600 *
2601 * http://stackoverflow.com/questions/11130109/c-struct-size-alignment
2602 * http://stackoverflow.com/questions/10951039/specifying-64-bit-alignment
2603 */
2604#if !(defined(DUK_USE_PACK_MSVC_PRAGMA) || defined(DUK_USE_PACK_GCC_ATTR) || \
2605 defined(DUK_USE_PACK_CLANG_ATTR) || defined(DUK_USE_PACK_DUMMY_MEMBER))
2606#define DUK_USE_PACK_DUMMY_MEMBER
2607#endif
2608
2609#if !defined(DUK_U64_CONSTANT)
2610#define DUK_U64_CONSTANT(x) x##ULL
2611#endif
2612#if !defined(DUK_I64_CONSTANT)
2613#define DUK_I64_CONSTANT(x) x##LL
2614#endif
2615
2616#if !defined(DUK_VA_COPY)
2617/* We need va_copy() which is defined in C99 / C++11, so an awkward
2618 * replacement is needed for pre-C99 / pre-C++11 environments. This
2619 * will quite likely need portability hacks for some non-C99
2620 * environments.
2621 */
2622#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
2623/* C99 / C++11 and above: rely on va_copy() which is required.
2624 * Omit parenthesis on macro right side on purpose to minimize differences
2625 * to direct use.
2626 */
2627#define DUK_VA_COPY(dest,src) va_copy(dest,src)
2628#else
2629/* Pre-C99: va_list type is implementation dependent. This replacement
2630 * assumes it is a plain value so that a simple assignment will work.
2631 * This is not the case on all platforms (it may be a single-array element,
2632 * for instance).
2633 */
2634#define DUK_VA_COPY(dest,src) do { (dest) = (src); } while (0)
2635#endif
2636#endif
2637
2638#if !defined(DUK_MACRO_STRINGIFY)
2639/* Macro hackery to convert e.g. __LINE__ to a string without formatting,
2640 * see: http://stackoverflow.com/questions/240353/convert-a-preprocessor-token-to-a-string
2641 */
2642#define DUK_MACRO_STRINGIFY_HELPER(x) #x
2643#define DUK_MACRO_STRINGIFY(x) DUK_MACRO_STRINGIFY_HELPER(x)
2644#endif
2645
2646#if !defined(DUK_CAUSE_SEGFAULT)
2647/* This can be used for testing; valgrind will then indicate the C call stack
2648 * leading to the call site.
2649 */
2650#define DUK_CAUSE_SEGFAULT() do { *((volatile duk_uint32_t *) NULL) = (duk_uint32_t) 0xdeadbeefUL; } while (0)
2651#endif
2652
2653#if !defined(DUK_UNREF)
2654/* Macro for suppressing warnings for potentially unreferenced variables.
2655 * The variables can be actually unreferenced or unreferenced in some
2656 * specific cases only; for instance, if a variable is only debug printed,
2657 * it is unreferenced when debug printing is disabled. May cause warnings
2658 * for volatile arguments.
2659 */
2660#define DUK_UNREF(x) do { (void) (x); } while (0)
2661#endif
2662
2663/* Fillin for DUK_NORETURN; DUK_WO_NORETURN() is used to insert dummy
2664 * dummy statements after noreturn calls to silence harmless compiler
2665 * warnings, e.g.:
2666 *
2667 * DUK_ERROR_TYPE(thr, "aiee");
2668 * DUK_WO_NORETURN(return 0;);
2669 *
2670 * Statements inside DUK_WO_NORETURN() must NEVER be actually reachable,
2671 * and they're only included to satisfy the compiler.
2672 */
2673#if defined(DUK_NORETURN)
2674#define DUK_WO_NORETURN(stmt) do { } while (0)
2675#else
2676#define DUK_NORETURN(decl) decl
2677#define DUK_WO_NORETURN(stmt) do { stmt } while (0)
2678#endif
2679
2680#if defined(DUK_UNREACHABLE)
2681#define DUK_WO_UNREACHABLE(stmt) do { } while (0)
2682#else
2683/* Don't know how to declare unreachable point, so don't do it; this
2684 * may cause some spurious compilation warnings (e.g. "variable used
2685 * uninitialized").
2686 */
2687#define DUK_UNREACHABLE() do { } while (0)
2688#define DUK_WO_UNREACHABLE(stmt) do { stmt } while (0)
2689#endif
2690
2691#if !defined(DUK_LOSE_CONST)
2692/* Convert any input pointer into a "void *", losing a const qualifier.
2693 * This is not fully portable because casting through duk_uintptr_t may
2694 * not work on all architectures (e.g. those with long, segmented pointers).
2695 */
2696#define DUK_LOSE_CONST(src) ((void *) (duk_uintptr_t) (src))
2697#endif
2698
2699#if !defined(DUK_LIKELY)
2700#define DUK_LIKELY(x) (x)
2701#endif
2702#if !defined(DUK_UNLIKELY)
2703#define DUK_UNLIKELY(x) (x)
2704#endif
2705#if !defined(DUK_UNPREDICTABLE)
2706#define DUK_UNPREDICTABLE(x) (x)
2707#endif
2708
2709#if !defined(DUK_NOINLINE)
2710#define DUK_NOINLINE /*nop*/
2711#endif
2712#if !defined(DUK_INLINE)
2713#define DUK_INLINE /*nop*/
2714#endif
2715#if !defined(DUK_ALWAYS_INLINE)
2716#define DUK_ALWAYS_INLINE /*nop*/
2717#endif
2718
2719#if !defined(DUK_HOT)
2720#define DUK_HOT /*nop*/
2721#endif
2722#if !defined(DUK_COLD)
2723#define DUK_COLD /*nop*/
2724#endif
2725
2726#if !defined(DUK_EXTERNAL_DECL)
2727#define DUK_EXTERNAL_DECL extern
2728#endif
2729#if !defined(DUK_EXTERNAL)
2730#define DUK_EXTERNAL /*empty*/
2731#endif
2732#if !defined(DUK_INTERNAL_DECL)
2733#if defined(DUK_SINGLE_FILE)
2734#define DUK_INTERNAL_DECL static
2735#else
2736#define DUK_INTERNAL_DECL extern
2737#endif
2738#endif
2739#if !defined(DUK_INTERNAL)
2740#if defined(DUK_SINGLE_FILE)
2741#define DUK_INTERNAL static
2742#else
2743#define DUK_INTERNAL /*empty*/
2744#endif
2745#endif
2746#if !defined(DUK_LOCAL_DECL)
2747#define DUK_LOCAL_DECL static
2748#endif
2749#if !defined(DUK_LOCAL)
2750#define DUK_LOCAL static
2751#endif
2752
2753#if !defined(DUK_FILE_MACRO)
2754#define DUK_FILE_MACRO __FILE__
2755#endif
2756#if !defined(DUK_LINE_MACRO)
2757#define DUK_LINE_MACRO __LINE__
2758#endif
2759#if !defined(DUK_FUNC_MACRO)
2760#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
2761#define DUK_FUNC_MACRO __func__
2762#elif defined(__FUNCTION__)
2763#define DUK_FUNC_MACRO __FUNCTION__
2764#else
2765#define DUK_FUNC_MACRO "unknown"
2766#endif
2767#endif
2768
2769#if defined(DUK_F_HAVE_64BIT)
2770#if !defined(DUK_BSWAP64)
2771#define DUK_BSWAP64(x) \
2772 ((((duk_uint64_t) (x)) >> 56U) | \
2773 ((((duk_uint64_t) (x)) >> 40U) & DUK_U64_CONSTANT(0xff00)) | \
2774 ((((duk_uint64_t) (x)) >> 24U) & DUK_U64_CONSTANT(0xff0000)) | \
2775 ((((duk_uint64_t) (x)) >> 8U) & DUK_U64_CONSTANT(0xff000000)) | \
2776 ((((duk_uint64_t) (x)) << 8U) & DUK_U64_CONSTANT(0xff00000000)) | \
2777 ((((duk_uint64_t) (x)) << 24U) & DUK_U64_CONSTANT(0xff0000000000)) | \
2778 ((((duk_uint64_t) (x)) << 40U) & DUK_U64_CONSTANT(0xff000000000000)) | \
2779 (((duk_uint64_t) (x)) << 56U))
2780#endif
2781#endif
2782#if !defined(DUK_BSWAP32)
2783#define DUK_BSWAP32(x) \
2784 ((((duk_uint32_t) (x)) >> 24U) | \
2785 ((((duk_uint32_t) (x)) >> 8U) & 0xff00UL) | \
2786 ((((duk_uint32_t) (x)) << 8U) & 0xff0000UL) | \
2787 (((duk_uint32_t) (x)) << 24U))
2788#endif
2789#if !defined(DUK_BSWAP16)
2790#define DUK_BSWAP16(x) \
2791 ((duk_uint16_t) (x) >> 8U) | \
2792 ((duk_uint16_t) (x) << 8U)
2793#endif
2794
2795/* DUK_USE_VARIADIC_MACROS: required from compilers, so no fill-in. */
2796/* DUK_USE_UNION_INITIALIZERS: required from compilers, so no fill-in. */
2797
2798#if !(defined(DUK_USE_FLEX_C99) || defined(DUK_USE_FLEX_ZEROSIZE) || defined(DUK_USE_FLEX_ONESIZE))
2799#if defined(DUK_F_C99)
2800#define DUK_USE_FLEX_C99
2801#else
2802#define DUK_USE_FLEX_ZEROSIZE /* Not standard but common enough */
2803#endif
2804#endif
2805
2806#if !(defined(DUK_USE_PACK_GCC_ATTR) || defined(DUK_USE_PACK_CLANG_ATTR) || \
2807 defined(DUK_USE_PACK_MSVC_PRAGMA) || defined(DUK_USE_PACK_DUMMY_MEMBER))
2808#define DUK_USE_PACK_DUMMY_MEMBER
2809#endif
2810
2811#if 0 /* not defined by default */
2812#undef DUK_USE_GCC_PRAGMAS
2813#endif
2814
2815/* Workaround for GH-323: avoid inlining control when compiling from
2816 * multiple sources, as it causes compiler portability trouble.
2817 */
2818#if !defined(DUK_SINGLE_FILE)
2819#undef DUK_NOINLINE
2820#undef DUK_INLINE
2821#undef DUK_ALWAYS_INLINE
2822#define DUK_NOINLINE /*nop*/
2823#define DUK_INLINE /*nop*/
2824#define DUK_ALWAYS_INLINE /*nop*/
2825#endif
2826
2827/*
2828 * Check whether or not a packed duk_tval representation is possible.
2829 * What's basically required is that pointers are 32-bit values
2830 * (sizeof(void *) == 4). Best effort check, not always accurate.
2831 * If guess goes wrong, crashes may result; self tests also verify
2832 * the guess.
2833 */
2834
2835/* Explicit marker needed; may be 'defined', 'undefined, 'or 'not provided'. */
2836#if !defined(DUK_F_PACKED_TVAL_PROVIDED)
2837#undef DUK_F_PACKED_TVAL_POSSIBLE
2838
2839/* Strict C99 case: DUK_UINTPTR_MAX (= UINTPTR_MAX) should be very reliable */
2840#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX)
2841#if (DUK_UINTPTR_MAX <= 0xffffffffUL)
2842#define DUK_F_PACKED_TVAL_POSSIBLE
2843#endif
2844#endif
2845
2846/* Non-C99 case, still relying on DUK_UINTPTR_MAX, as long as it is not a computed value */
2847#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX) && !defined(DUK_UINTPTR_MAX_COMPUTED)
2848#if (DUK_UINTPTR_MAX <= 0xffffffffUL)
2849#define DUK_F_PACKED_TVAL_POSSIBLE
2850#endif
2851#endif
2852
2853/* DUK_SIZE_MAX (= SIZE_MAX) is often reliable */
2854#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_SIZE_MAX) && !defined(DUK_SIZE_MAX_COMPUTED)
2855#if (DUK_SIZE_MAX <= 0xffffffffUL)
2856#define DUK_F_PACKED_TVAL_POSSIBLE
2857#endif
2858#endif
2859
2860#undef DUK_USE_PACKED_TVAL
2861#if defined(DUK_F_PACKED_TVAL_POSSIBLE)
2862#define DUK_USE_PACKED_TVAL
2863#endif
2864#undef DUK_F_PACKED_TVAL_POSSIBLE
2865
2866#endif /* DUK_F_PACKED_TVAL_PROVIDED */
2867/* Object property allocation layout has implications for memory and code
2868 * footprint and generated code size/speed. The best layout also depends
2869 * on whether the platform has alignment requirements or benefits from
2870 * having mostly aligned accesses.
2871 */
2872#undef DUK_USE_HOBJECT_LAYOUT_1
2873#undef DUK_USE_HOBJECT_LAYOUT_2
2874#undef DUK_USE_HOBJECT_LAYOUT_3
2875#if (DUK_USE_ALIGN_BY == 1)
2876/* On platforms without any alignment issues, layout 1 is preferable
2877 * because it compiles to slightly less code and provides direct access
2878 * to property keys.
2879 */
2880#define DUK_USE_HOBJECT_LAYOUT_1
2881#else
2882/* On other platforms use layout 2, which requires some padding but
2883 * is a bit more natural than layout 3 in ordering the entries. Layout
2884 * 3 is currently not used.
2885 */
2886#define DUK_USE_HOBJECT_LAYOUT_2
2887#endif
2888
2889/* GCC/clang inaccurate math would break compliance and probably duk_tval,
2890 * so refuse to compile. Relax this if -ffast-math is tested to work.
2891 */
2892#if defined(__FAST_MATH__)
2893#error __FAST_MATH__ defined, refusing to compile
2894#endif
2895
2896/*
2897 * Autogenerated defaults
2898 */
2899
2900#undef DUK_USE_ALLOW_UNDEFINED_BEHAVIOR
2901#define DUK_USE_ARRAY_BUILTIN
2902#define DUK_USE_ARRAY_FASTPATH
2903#define DUK_USE_ARRAY_PROP_FASTPATH
2904#undef DUK_USE_ASSERTIONS
2905#define DUK_USE_AUGMENT_ERROR_CREATE
2906#define DUK_USE_AUGMENT_ERROR_THROW
2907#define DUK_USE_AVOID_PLATFORM_FUNCPTRS
2908#define DUK_USE_BASE64_FASTPATH
2909#define DUK_USE_BASE64_SUPPORT
2910#define DUK_USE_BOOLEAN_BUILTIN
2911#define DUK_USE_BUFFEROBJECT_SUPPORT
2912#undef DUK_USE_BUFLEN16
2913#define DUK_USE_BYTECODE_DUMP_SUPPORT
2914#define DUK_USE_CACHE_ACTIVATION
2915#define DUK_USE_CACHE_CATCHER
2916#define DUK_USE_CALLSTACK_LIMIT 10000
2917#define DUK_USE_CBOR_BUILTIN
2918#define DUK_USE_CBOR_DEC_RECLIMIT 1000
2919#define DUK_USE_CBOR_ENC_RECLIMIT 1000
2920#define DUK_USE_CBOR_SUPPORT
2921#define DUK_USE_COMPILER_RECLIMIT 2500
2922#define DUK_USE_COROUTINE_SUPPORT
2923#undef DUK_USE_CPP_EXCEPTIONS
2924#undef DUK_USE_DATAPTR16
2925#undef DUK_USE_DATAPTR_DEC16
2926#undef DUK_USE_DATAPTR_ENC16
2927#define DUK_USE_DATE_BUILTIN
2928#undef DUK_USE_DATE_FORMAT_STRING
2929#undef DUK_USE_DATE_GET_LOCAL_TZOFFSET
2930#undef DUK_USE_DATE_GET_NOW
2931#undef DUK_USE_DATE_PARSE_STRING
2932#undef DUK_USE_DATE_PRS_GETDATE
2933#undef DUK_USE_DEBUG
2934#undef DUK_USE_DEBUGGER_DUMPHEAP
2935#undef DUK_USE_DEBUGGER_INSPECT
2936#undef DUK_USE_DEBUGGER_PAUSE_UNCAUGHT
2937#undef DUK_USE_DEBUGGER_SUPPORT
2938#define DUK_USE_DEBUGGER_THROW_NOTIFY
2939#undef DUK_USE_DEBUGGER_TRANSPORT_TORTURE
2940#define DUK_USE_DEBUG_BUFSIZE 65536L
2941#define DUK_USE_DEBUG_LEVEL 0
2942#undef DUK_USE_DEBUG_WRITE
2943#define DUK_USE_DOUBLE_LINKED_HEAP
2944#define DUK_USE_DUKTAPE_BUILTIN
2945#define DUK_USE_ENCODING_BUILTINS
2946#define DUK_USE_ERRCREATE
2947#define DUK_USE_ERRTHROW
2948#define DUK_USE_ES6
2949#define DUK_USE_ES6_OBJECT_PROTO_PROPERTY
2950#define DUK_USE_ES6_OBJECT_SETPROTOTYPEOF
2951#define DUK_USE_ES6_PROXY
2952#define DUK_USE_ES6_REGEXP_SYNTAX
2953#define DUK_USE_ES6_UNICODE_ESCAPE
2954#define DUK_USE_ES7
2955#define DUK_USE_ES7_EXP_OPERATOR
2956#define DUK_USE_ES8
2957#define DUK_USE_ES9
2958#define DUK_USE_ESBC_LIMITS
2959#define DUK_USE_ESBC_MAX_BYTES 2147418112L
2960#define DUK_USE_ESBC_MAX_LINENUMBER 2147418112L
2961#undef DUK_USE_EXEC_FUN_LOCAL
2962#undef DUK_USE_EXEC_INDIRECT_BOUND_CHECK
2963#undef DUK_USE_EXEC_PREFER_SIZE
2964#define DUK_USE_EXEC_REGCONST_OPTIMIZE
2965#undef DUK_USE_EXEC_TIMEOUT_CHECK
2966#undef DUK_USE_EXPLICIT_NULL_INIT
2967#undef DUK_USE_EXTSTR_FREE
2968#undef DUK_USE_EXTSTR_INTERN_CHECK
2969#undef DUK_USE_FASTINT
2970#define DUK_USE_FAST_REFCOUNT_DEFAULT
2971#undef DUK_USE_FATAL_HANDLER
2972#define DUK_USE_FATAL_MAXLEN 128
2973#define DUK_USE_FINALIZER_SUPPORT
2974#undef DUK_USE_FINALIZER_TORTURE
2975#undef DUK_USE_FUNCPTR16
2976#undef DUK_USE_FUNCPTR_DEC16
2977#undef DUK_USE_FUNCPTR_ENC16
2978#define DUK_USE_FUNCTION_BUILTIN
2979#define DUK_USE_FUNC_FILENAME_PROPERTY
2980#define DUK_USE_FUNC_NAME_PROPERTY
2981#undef DUK_USE_GC_TORTURE
2982#undef DUK_USE_GET_MONOTONIC_TIME
2983#undef DUK_USE_GET_RANDOM_DOUBLE
2984#define DUK_USE_GLOBAL_BINDING
2985#define DUK_USE_GLOBAL_BUILTIN
2986#undef DUK_USE_HEAPPTR16
2987#undef DUK_USE_HEAPPTR_DEC16
2988#undef DUK_USE_HEAPPTR_ENC16
2989#define DUK_USE_HEX_FASTPATH
2990#define DUK_USE_HEX_SUPPORT
2991#define DUK_USE_HOBJECT_ARRAY_ABANDON_LIMIT 2
2992#define DUK_USE_HOBJECT_ARRAY_ABANDON_MINSIZE 257
2993#define DUK_USE_HOBJECT_ARRAY_FAST_RESIZE_LIMIT 9
2994#define DUK_USE_HOBJECT_ARRAY_MINGROW_ADD 16
2995#define DUK_USE_HOBJECT_ARRAY_MINGROW_DIVISOR 8
2996#define DUK_USE_HOBJECT_ENTRY_MINGROW_ADD 16
2997#define DUK_USE_HOBJECT_ENTRY_MINGROW_DIVISOR 8
2998#define DUK_USE_HOBJECT_HASH_PART
2999#define DUK_USE_HOBJECT_HASH_PROP_LIMIT 8
3000#define DUK_USE_HSTRING_ARRIDX
3001#define DUK_USE_HSTRING_CLEN
3002#undef DUK_USE_HSTRING_EXTDATA
3003#define DUK_USE_HSTRING_LAZY_CLEN
3004#define DUK_USE_HTML_COMMENTS
3005#define DUK_USE_IDCHAR_FASTPATH
3006#undef DUK_USE_INJECT_HEAP_ALLOC_ERROR
3007#undef DUK_USE_INTERRUPT_COUNTER
3008#undef DUK_USE_INTERRUPT_DEBUG_FIXUP
3009#define DUK_USE_JC
3010#define DUK_USE_JSON_BUILTIN
3011#define DUK_USE_JSON_DECNUMBER_FASTPATH
3012#define DUK_USE_JSON_DECSTRING_FASTPATH
3013#define DUK_USE_JSON_DEC_RECLIMIT 1000
3014#define DUK_USE_JSON_EATWHITE_FASTPATH
3015#define DUK_USE_JSON_ENC_RECLIMIT 1000
3016#define DUK_USE_JSON_QUOTESTRING_FASTPATH
3017#undef DUK_USE_JSON_STRINGIFY_FASTPATH
3018#define DUK_USE_JSON_SUPPORT
3019#define DUK_USE_JX
3020#define DUK_USE_LEXER_SLIDING_WINDOW
3021#undef DUK_USE_LIGHTFUNC_BUILTINS
3022#define DUK_USE_LITCACHE_SIZE 256
3023#define DUK_USE_MARK_AND_SWEEP_RECLIMIT 256
3024#define DUK_USE_MATH_BUILTIN
3025#define DUK_USE_NATIVE_CALL_RECLIMIT 1000
3026#undef DUK_USE_NATIVE_STACK_CHECK
3027#define DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT
3028#undef DUK_USE_NONSTD_FUNC_CALLER_PROPERTY
3029#undef DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY
3030#define DUK_USE_NONSTD_FUNC_STMT
3031#define DUK_USE_NONSTD_GETTER_KEY_ARGUMENT
3032#define DUK_USE_NONSTD_JSON_ESC_U2028_U2029
3033#define DUK_USE_NONSTD_SETTER_KEY_ARGUMENT
3034#define DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT
3035#define DUK_USE_NUMBER_BUILTIN
3036#define DUK_USE_OBJECT_BUILTIN
3037#undef DUK_USE_OBJSIZES16
3038#undef DUK_USE_PARANOID_ERRORS
3039#define DUK_USE_PC2LINE
3040#define DUK_USE_PERFORMANCE_BUILTIN
3041#undef DUK_USE_PREFER_SIZE
3042#undef DUK_USE_PROMISE_BUILTIN
3043#define DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS
3044#undef DUK_USE_REFCOUNT16
3045#define DUK_USE_REFCOUNT32
3046#define DUK_USE_REFERENCE_COUNTING
3047#define DUK_USE_REFLECT_BUILTIN
3048#define DUK_USE_REGEXP_CANON_BITMAP
3049#undef DUK_USE_REGEXP_CANON_WORKAROUND
3050#define DUK_USE_REGEXP_COMPILER_RECLIMIT 10000
3051#define DUK_USE_REGEXP_EXECUTOR_RECLIMIT 10000
3052#define DUK_USE_REGEXP_SUPPORT
3053#undef DUK_USE_ROM_GLOBAL_CLONE
3054#undef DUK_USE_ROM_GLOBAL_INHERIT
3055#undef DUK_USE_ROM_OBJECTS
3056#define DUK_USE_ROM_PTRCOMP_FIRST 63488L
3057#undef DUK_USE_ROM_STRINGS
3058#define DUK_USE_SECTION_B
3059#undef DUK_USE_SELF_TESTS
3060#define DUK_USE_SHEBANG_COMMENTS
3061#undef DUK_USE_SHUFFLE_TORTURE
3062#define DUK_USE_SOURCE_NONBMP
3063#undef DUK_USE_STRHASH16
3064#undef DUK_USE_STRHASH_DENSE
3065#define DUK_USE_STRHASH_SKIP_SHIFT 5
3066#define DUK_USE_STRICT_DECL
3067#undef DUK_USE_STRICT_UTF8_SOURCE
3068#define DUK_USE_STRING_BUILTIN
3069#undef DUK_USE_STRLEN16
3070#define DUK_USE_STRTAB_GROW_LIMIT 17
3071#define DUK_USE_STRTAB_MAXSIZE 268435456L
3072#define DUK_USE_STRTAB_MINSIZE 1024
3073#undef DUK_USE_STRTAB_PTRCOMP
3074#define DUK_USE_STRTAB_RESIZE_CHECK_MASK 255
3075#define DUK_USE_STRTAB_SHRINK_LIMIT 6
3076#undef DUK_USE_STRTAB_TORTURE
3077#define DUK_USE_SYMBOL_BUILTIN
3078#define DUK_USE_TAILCALL
3079#define DUK_USE_TARGET_INFO "unknown"
3080#define DUK_USE_TRACEBACKS
3081#define DUK_USE_TRACEBACK_DEPTH 10
3082#define DUK_USE_VALSTACK_GROW_SHIFT 2
3083#define DUK_USE_VALSTACK_LIMIT 1000000L
3084#define DUK_USE_VALSTACK_SHRINK_CHECK_SHIFT 2
3085#define DUK_USE_VALSTACK_SHRINK_SLACK_SHIFT 4
3086#undef DUK_USE_VALSTACK_UNSAFE
3087#define DUK_USE_VERBOSE_ERRORS
3088#define DUK_USE_VERBOSE_EXECUTOR_ERRORS
3089#define DUK_USE_VOLUNTARY_GC
3090#define DUK_USE_ZERO_BUFFER_DATA
3091
3092/*
3093 * Fixups
3094 */
3095
3096#include "duk_custom.h"
3097
3098/*
3099 * You may add overriding #define/#undef directives below for
3100 * customization. You of course cannot un-#include or un-typedef
3101 * anything; these require direct changes above.
3102 */
3103
3104/* __OVERRIDE_DEFINES__ */
3105
3106/*
3107 * Conditional includes
3108 */
3109
3110#if defined(DUK_F_CPP) && defined(DUK_USE_CPP_EXCEPTIONS)
3111#include <exception> /* std::exception */
3112#include <stdexcept> /* std::runtime_error */
3113#endif
3114
3115/*
3116 * Date provider selection
3117 *
3118 * User may define DUK_USE_DATE_GET_NOW() etc directly, in which case we'll
3119 * rely on an external provider. If this is not done, revert to previous
3120 * behavior and use Unix/Windows built-in provider.
3121 */
3122
3123#if defined(DUK_COMPILING_DUKTAPE)
3124
3125#if defined(DUK_USE_DATE_GET_NOW)
3126/* External provider already defined. */
3127#elif defined(DUK_USE_DATE_NOW_GETTIMEOFDAY)
3128#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_gettimeofday()
3129#elif defined(DUK_USE_DATE_NOW_TIME)
3130#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_time()
3131#elif defined(DUK_USE_DATE_NOW_WINDOWS)
3132#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_windows()
3133#elif defined(DUK_USE_DATE_NOW_WINDOWS_SUBMS)
3134#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_windows_subms()
3135#else
3136#error no provider for DUK_USE_DATE_GET_NOW()
3137#endif
3138
3139#if defined(DUK_USE_DATE_GET_LOCAL_TZOFFSET)
3140/* External provider already defined. */
3141#elif defined(DUK_USE_DATE_TZO_GMTIME_R) || defined(DUK_USE_DATE_TZO_GMTIME_S) || defined(DUK_USE_DATE_TZO_GMTIME)
3142#define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d) duk_bi_date_get_local_tzoffset_gmtime((d))
3143#elif defined(DUK_USE_DATE_TZO_WINDOWS)
3144#define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d) duk_bi_date_get_local_tzoffset_windows((d))
3145#elif defined(DUK_USE_DATE_TZO_WINDOWS_NO_DST)
3146#define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d) duk_bi_date_get_local_tzoffset_windows_no_dst((d))
3147#else
3148#error no provider for DUK_USE_DATE_GET_LOCAL_TZOFFSET()
3149#endif
3150
3151#if defined(DUK_USE_DATE_PARSE_STRING)
3152/* External provider already defined. */
3153#elif defined(DUK_USE_DATE_PRS_STRPTIME)
3154#define DUK_USE_DATE_PARSE_STRING(ctx,str) duk_bi_date_parse_string_strptime((ctx), (str))
3155#elif defined(DUK_USE_DATE_PRS_GETDATE)
3156#define DUK_USE_DATE_PARSE_STRING(ctx,str) duk_bi_date_parse_string_getdate((ctx), (str))
3157#else
3158/* No provider for DUK_USE_DATE_PARSE_STRING(), fall back to ISO 8601 only. */
3159#endif
3160
3161#if defined(DUK_USE_DATE_FORMAT_STRING)
3162/* External provider already defined. */
3163#elif defined(DUK_USE_DATE_FMT_STRFTIME)
3164#define DUK_USE_DATE_FORMAT_STRING(ctx,parts,tzoffset,flags) \
3165 duk_bi_date_format_parts_strftime((ctx), (parts), (tzoffset), (flags))
3166#else
3167/* No provider for DUK_USE_DATE_FORMAT_STRING(), fall back to ISO 8601 only. */
3168#endif
3169
3170#if defined(DUK_USE_GET_MONOTONIC_TIME)
3171/* External provider already defined. */
3172#elif defined(DUK_USE_GET_MONOTONIC_TIME_CLOCK_GETTIME)
3173#define DUK_USE_GET_MONOTONIC_TIME(ctx) duk_bi_date_get_monotonic_time_clock_gettime()
3174#elif defined(DUK_USE_GET_MONOTONIC_TIME_WINDOWS_QPC)
3175#define DUK_USE_GET_MONOTONIC_TIME(ctx) duk_bi_date_get_monotonic_time_windows_qpc()
3176#else
3177/* No provider for DUK_USE_GET_MONOTONIC_TIME(), fall back to DUK_USE_DATE_GET_NOW(). */
3178#endif
3179
3180#endif /* DUK_COMPILING_DUKTAPE */
3181
3182/*
3183 * Convert DUK_USE_BYTEORDER, from whatever source, into currently used
3184 * internal defines. If detection failed, #error out.
3185 */
3186
3187#if defined(DUK_USE_BYTEORDER)
3188#if (DUK_USE_BYTEORDER == 1)
3189#define DUK_USE_INTEGER_LE
3190#define DUK_USE_DOUBLE_LE
3191#elif (DUK_USE_BYTEORDER == 2)
3192#define DUK_USE_INTEGER_LE /* integer endianness is little on purpose */
3193#define DUK_USE_DOUBLE_ME
3194#elif (DUK_USE_BYTEORDER == 3)
3195#define DUK_USE_INTEGER_BE
3196#define DUK_USE_DOUBLE_BE
3197#else
3198#error unsupported: byte order invalid
3199#endif /* byte order */
3200#else
3201#error unsupported: byte order detection failed
3202#endif /* defined(DUK_USE_BYTEORDER) */
3203
3204#endif /* DUK_CONFIG_H_INCLUDED */
duk_small_int_t
int duk_small_int_t
Definition: duk_config.h:2033
duk_uint_least16_t
duk_uint16_t duk_uint_least16_t
Definition: duk_config.h:1849
duk_int_fast32_t
duk_int32_t duk_int_fast32_t
Definition: duk_config.h:1858
duk_intmax_t
duk_int32_t duk_intmax_t
Definition: duk_config.h:1870
duk_small_uint_t
unsigned int duk_small_uint_t
Definition: duk_config.h:2034
duk_uint_least32_t
duk_uint32_t duk_uint_least32_t
Definition: duk_config.h:1851
duk_uidx_t
duk_uint_t duk_uidx_t
Definition: duk_config.h:2061
duk_ucodepoint_t
duk_uint_t duk_ucodepoint_t
Definition: duk_config.h:2095
duk_uint_fast_t
duk_uint_fast32_t duk_uint_fast_t
Definition: duk_config.h:2024
duk_ret_t
duk_small_int_t duk_ret_t
Definition: duk_config.h:2076
duk_idx_t
duk_int_t duk_idx_t
Definition: duk_config.h:2056
duk_int_fast_t
duk_int_fast32_t duk_int_fast_t
Definition: duk_config.h:2023
duk_errcode_t
duk_int_t duk_errcode_t
Definition: duk_config.h:2083
duk_int_least8_t
duk_int8_t duk_int_least8_t
Definition: duk_config.h:1848
duk_bool_t
duk_small_uint_t duk_bool_t
Definition: duk_config.h:2051
duk_small_uint_fast_t
duk_uint_fast16_t duk_small_uint_fast_t
Definition: duk_config.h:2044
duk_double_t
double duk_double_t
Definition: duk_config.h:2103
duk_uarridx_t
duk_uint_t duk_uarridx_t
Definition: duk_config.h:2068
duk_uint_fast8_t
duk_uint8_t duk_uint_fast8_t
Definition: duk_config.h:1853
duk_codepoint_t
duk_int_t duk_codepoint_t
Definition: duk_config.h:2094
duk_int_t
duk_int_fast32_t duk_int_t
Definition: duk_config.h:2011
duk_int_fast8_t
duk_int8_t duk_int_fast8_t
Definition: duk_config.h:1854
duk_ptrdiff_t
ptrdiff_t duk_ptrdiff_t
Definition: duk_config.h:1997
duk_small_int_fast_t
duk_int_fast16_t duk_small_int_fast_t
Definition: duk_config.h:2043
duk_int_least32_t
duk_int32_t duk_int_least32_t
Definition: duk_config.h:1852
duk_size_t
size_t duk_size_t
Definition: duk_config.h:1996
duk_int_fast16_t
duk_int16_t duk_int_fast16_t
Definition: duk_config.h:1856
duk_float_t
float duk_float_t
Definition: duk_config.h:2102
duk_uint_least8_t
duk_uint8_t duk_uint_least8_t
Definition: duk_config.h:1847
duk_uint_t
duk_uint_fast32_t duk_uint_t
Definition: duk_config.h:2012
duk_int_least16_t
duk_int16_t duk_int_least16_t
Definition: duk_config.h:1850
duk_uintmax_t
duk_uint32_t duk_uintmax_t
Definition: duk_config.h:1869
duk_uint_fast32_t
duk_uint32_t duk_uint_fast32_t
Definition: duk_config.h:1857
duk_uint_fast16_t
duk_uint16_t duk_uint_fast16_t
Definition: duk_config.h:1855
duk_custom.h
Custom configuration for duktape.
inttypes.h
Netsurf additional integer type formatting macros.
string.h
Interface to utility string handling.
duk_hthread
Definition: duktape.c:8303
time.h
Interface to time operations.
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