70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
|
|
FUNCTION
|
|
<<siprintf>>---write formatted output (integer only)
|
|
INDEX
|
|
siprintf
|
|
|
|
ANSI_SYNOPSIS
|
|
#include <stdio.h>
|
|
|
|
int siprintf(char *<[str]>, const char *<[format]> [, <[arg]>, ...]);
|
|
|
|
|
|
DESCRIPTION
|
|
<<siprintf>> is a restricted version of <<sprintf>>: it has the same
|
|
arguments and behavior, save that it cannot perform any floating-point
|
|
formatting: the <<f>>, <<g>>, <<G>>, <<e>>, and <<F>> type specifiers
|
|
are not recognized.
|
|
|
|
RETURNS
|
|
<<siprintf>> returns the number of bytes in the output string,
|
|
save that the concluding <<NULL>> is not counted.
|
|
<<siprintf>> returns when the end of the format string is
|
|
encountered.
|
|
|
|
PORTABILITY
|
|
<<siprintf>> is not required by ANSI C.
|
|
|
|
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
|
|
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#ifdef _HAVE_STDC
|
|
#include <stdarg.h>
|
|
#else
|
|
#include <varargs.h>
|
|
#endif
|
|
#include <limits.h>
|
|
#include <_ansi.h>
|
|
#include <reent.h>
|
|
#include "local.h"
|
|
|
|
int
|
|
#ifdef _HAVE_STDC
|
|
_DEFUN (siprintf, (str, fmt), char *str _AND _CONST char *fmt _DOTS)
|
|
#else
|
|
siprintf (str, fmt, va_alist)
|
|
char *str;
|
|
_CONST char *fmt;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
int ret;
|
|
va_list ap;
|
|
FILE f;
|
|
|
|
f._flags = __SWR | __SSTR;
|
|
f._bf._base = f._p = (unsigned char *) str;
|
|
f._bf._size = f._w = INT_MAX;
|
|
#ifdef _HAVE_STDC
|
|
va_start (ap, fmt);
|
|
#else
|
|
va_start (ap);
|
|
#endif
|
|
ret = vfiprintf (&f, fmt, ap);
|
|
va_end (ap);
|
|
*f._p = 0;
|
|
return (ret);
|
|
}
|