snprintf.c File Reference

#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <assert.h>
#include <errno.h>

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Macros
#define	breakeven_point   6 /* some reasonable one-size-fits-all value */
#define	fast_memcpy(d, s, n)
#define	fast_memset(d, c, n)
#define	isdigit(c)   ((c) >= '0' && (c) <= '9')
#define	portable_snprintf   snprintf
#define	PORTABLE_SNPRINTF_VERSION_MAJOR   2
#define	PORTABLE_SNPRINTF_VERSION_MINOR   2
#define	portable_vsnprintf   vsnprintf

Functions
int	portable_snprintf (char *str, size_t str_m, const char *fmt,...)
int	portable_vsnprintf (char *str, size_t str_m, const char *fmt, va_list ap)

Variables
static char	credits []

Macro Definition Documentation

#define breakeven_point   6 /* some reasonable one-size-fits-all value */

Definition at line 360 of file snprintf.c.

#define fast_memcpy	(		d,
			s,
			n
	)

Value:

{ register size_t nn = (size_t)(n); \
    if (nn >= breakeven_point) memcpy((d), (s), nn); \
    else if (nn > 0) { /* proc call overhead is worth only for large strings*/\
      register char *dd; register const char *ss; \
      for (ss=(s), dd=(d); nn>0; nn--) *dd++ = *ss++; } }

Definition at line 363 of file snprintf.c.

#define fast_memset	(		d,
			c,
			n
	)

Value:

{ register size_t nn = (size_t)(n); \
    if (nn >= breakeven_point) memset((d), (int)(c), nn); \
    else if (nn > 0) { /* proc call overhead is worth only for large strings*/\
      register char *dd; register const int cc=(int)(c); \
      for (dd=(d); nn>0; nn--) *dd++ = cc; } }

Definition at line 370 of file snprintf.c.

#define isdigit

(

c

)

((c) >= '0' && (c) <= '9')

Definition at line 330 of file snprintf.c.

#define portable_snprintf   snprintf

Definition at line 397 of file snprintf.c.

#define PORTABLE_SNPRINTF_VERSION_MAJOR   2

Definition at line 287 of file snprintf.c.

#define PORTABLE_SNPRINTF_VERSION_MINOR   2

Definition at line 288 of file snprintf.c.

#define portable_vsnprintf   vsnprintf

Definition at line 399 of file snprintf.c.

Function Documentation

int portable_snprintf	(	char *	str,
		size_t	str_m,
		const char *	fmt,
			...
	)

Definition at line 524 of file snprintf.c.

int portable_vsnprintf	(	char *	str,
		size_t	str_m,
		const char *	fmt,
		va_list	ap
	)

Definition at line 538 of file snprintf.c.

Variable Documentation

char credits[]

static

Initial value:

= "\n\
@(#)snprintf.c, v2.2: Mark Martinec, <mark.martinec@ijs.si>\n\
@(#)snprintf.c, v2.2: Copyright 1999, Mark Martinec. Frontier Artistic License applies.\n\
@(#)snprintf.c, v2.2: http://www.ijs.si/software/snprintf/\n"

Definition at line 412 of file snprintf.c.