C/POSIX locale functions

Collaboration diagram for C/POSIX locale functions:

Functions
double	vlc_strtod_c (const char *restrict str, char **restrict end)
	Parses a double in C locale.
float	vlc_strtof_c (const char *restrict str, char **restrict end)
	Parses a float in C locale.
static double	vlc_atof_c (const char *str)
	Parses a double in C locale.
int	vlc_vasprintf_c (char **restrict p, const char *restrict fmt, va_list ap)
	Formats a string using the C locale.
int	vlc_asprintf_c (char **p, const char *fmt,...)
	Formats a string using the C locale.
int	vlc_vfprintf_c (FILE *f, const char *fmt, va_list ap)
	Write a string to the output using the C locale.
int	vlc_fprintf_c (FILE *f, const char *fmt,...)
	Write a string to the output using the C locale.
int	vlc_vsscanf_c (const char *, const char *, va_list)
int	vlc_sscanf_c (const char *, const char *,...)

Detailed Description

Function Documentation

vlc_asprintf_c()

int vlc_asprintf_c	(	char **	p,
		const char *	fmt,
			...
	)

Formats a string using the C locale.

This function formats a string from a format string and a variable argument list, just like the standard asprintf() but using the C locale for the formatting of numerals.

Parameters

[out]	p	storage space for a pointer to the heap-allocated formatted string (undefined on error)
	fmt	format string

Returns

number of bytes formatted (excluding the nul terminator) or -1 on error

vlc_atof_c()

static double vlc_atof_c ( const char *  str )

inlinestatic

Parses a double in C locale.

This function parses a double-precision floating point number from a string just like the standard atof() but it uses the C locale. In other words, it expects the POSIX/C/American decimal format regardless of the current numeric locale.

Parameters

str	nul-terminated string to parse

Returns

the parsed double value (zero if no character could be parsed)

References vlc_strtod_c().

Referenced by config_ChainParse(), config_LoadCmdLine(), var_OptionParse(), and vlc_audio_replay_gain_MergeFromMeta().

vlc_fprintf_c()

int vlc_fprintf_c	(	FILE *	f,
		const char *	fmt,
			...
	)

Write a string to the output using the C locale.

This function formats a string from a format string and a variable argument list, just like the standard fprintf() but using the C locale for the formatting of numerals.

Parameters

f	output stream to write the string to
fmt	format string

Returns

number of bytes formatted (excluding the nul terminator) or -1 on error

vlc_sscanf_c()

int vlc_sscanf_c	(	const char *	,
		const char *	,
			...
	)

vlc_strtod_c()

double vlc_strtod_c	(	const char *restrict	str,
		char **restrict	end
	)

Parses a double in C locale.

This function parses a double-precision floating point number from a string just like the standard strtod() but it uses the C locale. In other words, it expects the POSIX/C/American decimal format regardless of the current numeric locale.

Parameters

	str	nul-terminated string to parse
[out]	end	storage space for a pointer to the first unparsed byte (or NULL to discard it)

Returns

the parsed double value (zero if no character could be parsed)

References freelocale(), LC_NUMERIC_MASK, newlocale(), and uselocale().

Referenced by vlc_atof_c().

vlc_strtof_c()

float vlc_strtof_c	(	const char *restrict	str,
		char **restrict	end
	)

Parses a float in C locale.

This function parses a single-precision floating point number from a string just like the standard strtof() but it uses the C locale. In other words, it expects the POSIX/C/American decimal format regardless of the current numeric locale.

Parameters

	str	nul-terminated string to parse
[out]	end	storage space for a pointer to the first unparsed byte (or NULL to discard it)

Returns

the parsed double value (zero if no character could be parsed)

References freelocale(), LC_NUMERIC_MASK, newlocale(), strtof(), and uselocale().

vlc_vasprintf_c()

int vlc_vasprintf_c	(	char **restrict	p,
		const char *restrict	fmt,
		va_list	ap
	)

Formats a string using the C locale.

This function formats a string from a format string and a variable argument list, just like the standard vasprintf() but using the C locale for the formatting of numerals.

Parameters

[out]	p	storage space for a pointer to the heap-allocated formatted string (undefined on error)
	fmt	format string
	ap	variable argument list

Returns

number of bytes formatted (excluding the nul terminator) or -1 on error

References freelocale(), LC_NUMERIC_MASK, newlocale(), uselocale(), and vasprintf().

Referenced by httpd_MsgAdd(), and vlc_asprintf_c().

vlc_vfprintf_c()

int vlc_vfprintf_c	(	FILE *	f,
		const char *	fmt,
		va_list	ap
	)

Write a string to the output using the C locale.

This function formats a string from a format string and a variable argument list, just like the standard vfprintf() but using the C locale for the formatting of numerals.

Parameters

f	output stream to write the string to
fmt	format string
ap	variable argument list

Returns

number of bytes formatted (excluding the nul terminator) or -1 on error

References freelocale(), LC_NUMERIC_MASK, newlocale(), and uselocale().

Referenced by vlc_fprintf_c().

vlc_vsscanf_c()

int vlc_vsscanf_c	(	const char *	,
		const char *	,
		va_list
	)