Bug Summary

File:select/properties/pitch.c
Warning:line 48, column 2
Value stored to 'unit' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name pitch.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/var/lib/jenkins/workspace/scan-build-libcss -resource-dir /usr/lib/llvm-14/lib/clang/14.0.6 -D _BSD_SOURCE -D _DEFAULT_SOURCE -I /var/lib/jenkins/workspace/scan-build-libcss/include/ -I /var/lib/jenkins/workspace/scan-build-libcss/src -D _ALIGNED=__attribute__((aligned)) -D STMTEXPR=1 -D DEBUG -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -internal-isystem /usr/lib/llvm-14/lib/clang/14.0.6/include -internal-isystem /usr/local/include -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/12/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -Og -Wwrite-strings -Wno-error -std=c99 -fconst-strings -fdebug-compilation-dir=/var/lib/jenkins/workspace/scan-build-libcss -ferror-limit 19 -fgnuc-version=4.2.1 -analyzer-display-progress -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /var/lib/jenkins/workspace/scan-build-libcss/clangScanBuildReports/2024-10-20-124952-516876-1 -x c src/select/properties/pitch.c
1/*
2 * This file is part of LibCSS
3 * Licensed under the MIT License,
4 * http://www.opensource.org/licenses/mit-license.php
5 * Copyright 2009 John-Mark Bell <jmb@netsurf-browser.org>
6 */
7
8#include "bytecode/bytecode.h"
9#include "bytecode/opcodes.h"
10#include "select/propset.h"
11#include "select/propget.h"
12#include "utils/utils.h"
13
14#include "select/properties/properties.h"
15#include "select/properties/helpers.h"
16
17css_error css__cascade_pitch(uint32_t opv, css_style *style,
18 css_select_state *state)
19{
20 css_fixed freq = 0;
21 uint32_t unit = UNIT_HZ;
22
23 if (hasFlagValue(opv) == false0) {
24 switch (getValue(opv)) {
25 case PITCH_FREQUENCY:
26 freq = *((css_fixed *) style->bytecode);
27 advance_bytecode(style, sizeof(freq));
28 unit = *((uint32_t *) style->bytecode);
29 advance_bytecode(style, sizeof(unit));
30 break;
31 case PITCH_X_LOW:
32 case PITCH_LOW:
33 case PITCH_MEDIUM:
34 case PITCH_HIGH:
35 case PITCH_X_HIGH:
36 /** \todo convert to public values */
37 break;
38 case PITCH_CALC:
39 advance_bytecode(style, sizeof(unit));
40 advance_bytecode(style, sizeof(unit)); // TODO
41 return CSS_OK;
42 default:
43 assert(0 && "Invalid value")((0 && "Invalid value") ? (void) (0) : __assert_fail (
"0 && \"Invalid value\"", "src/select/properties/pitch.c"
, 43, __extension__ __PRETTY_FUNCTION__));
44 break;
45 }
46 }
47
48 unit = css__to_css_unit(unit);
Value stored to 'unit' is never read
49
50 if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
51 getFlagValue(opv))) {
52 /** \todo pitch */
53 }
54
55 return CSS_OK;
56}
57
58css_error css__set_pitch_from_hint(const css_hint *hint,
59 css_computed_style *style)
60{
61 UNUSED(hint)((void)(hint));
62 UNUSED(style)((void)(style));
63
64 return CSS_OK;
65}
66
67css_error css__initial_pitch(css_select_state *state)
68{
69 UNUSED(state)((void)(state));
70
71 return CSS_OK;
72}
73
74css_error css__copy_pitch(
75 const css_computed_style *from,
76 css_computed_style *to)
77{
78 UNUSED(from)((void)(from));
79 UNUSED(to)((void)(to));
80
81 return CSS_OK;
82}
83
84css_error css__compose_pitch(const css_computed_style *parent,
85 const css_computed_style *child,
86 css_computed_style *result)
87{
88 UNUSED(parent)((void)(parent));
89 UNUSED(child)((void)(child));
90 UNUSED(result)((void)(result));
91
92 return CSS_OK;
93}
94