Interface to a number of general purpose functionality. More...

#include <stdbool.h>

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Macros
#define	NOF_ELEMENTS(array) (sizeof(array)/sizeof(*(array)))

#define	ABS(x) (((x)>0)?(x):(-(x)))

#define	min(x, y) (((x)<(y))?(x):(y))

#define	max(x, y) (((x)>(y))?(x):(y))

#define	clamp(x, low, high) (min(max((x),(low)),(high)))

#define	nsmkdir(dir, mode) mkdir((dir), (mode))
	POSIX mkdir function. More...

#define	FLEX_ARRAY_LEN_DECL

#define	SLEN(x) (sizeof((x)) - 1)
	Calculate length of constant C string. More...

#define	fallthrough do {} while(0)
	switch fall through More...

Functions
bool	is_dir (const char *path)
	Check if a directory exists. More...

Detailed Description

Interface to a number of general purpose functionality.

Todo:: Many of these functions and macros should have their own headers.

Definition in file utils.h.

Macro Definition Documentation

◆ ABS

#define ABS ( x ) (((x)>0)?(x):(-(x)))

Definition at line 36 of file utils.h.

◆ clamp

#define clamp	(	x,
		low,
		high
	)	(min(max((x),(low)),(high)))

Definition at line 54 of file utils.h.

◆ fallthrough

#define fallthrough do {} while(0)

switch fall through

Definition at line 119 of file utils.h.

◆ FLEX_ARRAY_LEN_DECL

#define FLEX_ARRAY_LEN_DECL

Definition at line 70 of file utils.h.

◆ max

#define max	(	x,
		y
	)	(((x)>(y))?(x):(y))

Definition at line 50 of file utils.h.

◆ min

#define min	(	x,
		y
	)	(((x)<(y))?(x):(y))

Definition at line 46 of file utils.h.

◆ NOF_ELEMENTS

#define NOF_ELEMENTS ( array ) (sizeof(array)/sizeof(*(array)))

Definition at line 32 of file utils.h.

◆ nsmkdir

#define nsmkdir	(	dir,
		mode
	)	mkdir((dir), (mode))

POSIX mkdir function.

Definition at line 64 of file utils.h.

◆ SLEN

#define SLEN ( x ) (sizeof((x)) - 1)

Calculate length of constant C string.

Parameters

x	a constant C string.

Returns: The length of C string without its terminator.

Definition at line 88 of file utils.h.

Function Documentation

◆ is_dir()

bool is_dir ( const char * path )

Check if a directory exists.

Definition at line 94 of file utils.c.

References path().

Referenced by filename_create_directory(), handle_filesystem_select_button(), menu_save_page(), ro_gui_choose_language(), and ro_gui_default_language().

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Macros

Functions