c99_printf_hacks.c File Reference

#include <stdio.h>
#include <stdarg.h>

Include dependency graph for c99_printf_hacks.c:

Go to the source code of this file.

Functions
int	vsnprintf (char *buffer, size_t count, const char *format, va_list argptr)
int	snprintf (char *buffer, size_t count, const char *format,...)

Function Documentation

snprintf()

int snprintf	(	char *	buffer,
		size_t	count,
		const char *	format,
			...
	)

Definition at line 39 of file c99_printf_hacks.c.

{
    va_list argptr;
    int result;
 
    va_start(argptr, format);
    result = vsnprintf(buffer, count, format, argptr);
    va_end(argptr);
 
    return result;
}

vsnprintf()

int vsnprintf	(	char *	buffer,
		size_t	count,
		const char *	format,
		va_list	argptr
	)

Definition at line 16 of file c99_printf_hacks.c.

{
    va_list ap;
    int result;
 
    va_copy(ap, argptr);
    result = _vsnprintf(buffer, count, format, ap);
    va_end(ap);
 
    if (result >= 0 && (size_t)result < count)
        return result;
 
    /* Truncated: terminate and return the would-be length */
    if (count != 0)
        buffer[count - 1] = '\0';
 
    va_copy(ap, argptr);
    result = _vscprintf(format, ap);
    va_end(ap);
 
    return result;
}