#include "config.h"
#include "safe_str_lib.h"
#include "safe_str_constraint.h"
#include <stdarg.h>

Include dependency graph for snprintf_s.c:

Functions
int	snprintf_s (char restrict dest, rsize_t dmax, const char restrict fmt,...)
	The snprintf_s function composes a string with same test that would be printed if format was used on printf. More...

Function Documentation

◆ snprintf_s()

int snprintf_s	(	char *restrict	dest,
		rsize_t	dmax,
		const char *restrict	fmt,
			...
	)

The snprintf_s function composes a string with same test that would be printed if format was used on printf.

Instead of being printed, the content is stored in dest. More than dmax - 1 characters might be written, so this variant is unsafe! Always use sprintf_s instead. The resulting character string will be terminated with a null character, unless dmax is zero. If dmax is zero, nothing is written and dest may be a null pointer, however the return value (number of bytes that would be written) is still calculated and returned.

Remarks

SPECIFIED IN

C11 standard (ISO/IEC 9899:2011): K.3.5.3.6 The snprintf_s function (p: 594-595) http://en.cppreference.com/w/c/string/byte/sprintf

Parameters

dest	storage location for output buffer.
dmax	maximum number of characters to store in buffer.
fmt	format-control string.
...	optional arguments

Returns: Number of characters not including the terminating null character (which is always written as long as buffer is not a null pointer and bufsz is not zero and not greater than RSIZE_MAX_STR), which would have been written to buffer if bufsz was ignored, or a negative value if a runtime constraints violation or an encoding error occurred.

Return values

ESNULLP	when dest/fmt is NULL pointer
ESZEROL	when dmax = 0
ESLEMAX	when dmax > RSIZE_MAX_STR

Definition at line 74 of file snprintf_s.c.

Functions

Function Documentation

◆ snprintf_s()