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VFPRINTF(P) POSIX Programmer's Manual VFPRINTF(P)
NAME
vfprintf, vprintf, vsnprintf, vsprintf - format output of a stdarg
argument list
SYNOPSIS
#include <stdarg.h>
#include <stdio.h>
int vfprintf(FILE *restrict stream, const char *restrict format,
va_list ap);
int vprintf(const char *restrict format, va_list ap);
int vsnprintf(char *restrict s, size_t n, const char *restrict format,
va_list ap);
int vsprintf(char *restrict s, const char *restrict format, va_list
ap);
DESCRIPTION
The vprintf(), vfprintf(), vsnprintf(), and vsprintf() functions shall
be equivalent to printf(), fprintf(), snprintf(), and sprintf() respec-
tively, except that instead of being called with a variable number of
arguments, they are called with an argument list as defined by
<stdarg.h>.
These functions shall not invoke the va_end macro. As these functions
invoke the va_arg macro, the value of ap after the return is unspeci-
fied.
RETURN VALUE
Refer to fprintf() .
ERRORS
Refer to fprintf() .
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
Applications using these functions should call va_end(ap) afterwards to
clean up.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
fprintf() , the Base Definitions volume of IEEE Std 1003.1-2001,
<stdarg.h>, <stdio.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 VFPRINTF(P)
Man(1) output converted with
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This page was generated on Sat Sep 8 16:42:21 GMT 2007
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