HP-UX Reference (11i v2 07/12) - 3 Library Functions N-Z (vol 7)

vwprintf(3C) vwprintf(3C)

NAME

vfwprintf(), vwprintf(), vswprintf() - wide-character formatted output of a stdarg argument list

SYNOPSIS

#include <stdarg.h>

#include <wchar.h>

int vwprintf(const wchar_t *format, va_list arg);

int vfwprintf(FILE *stream, const wchar_t *format, va_list arg);

int vswprintf(wchar_t *s, size_t n, const wchar_t *format, va_list arg);

DESCRIPTION

The vwprintf() , vfwprintf() and vswprintf() functions are the same as

wprintf(),

fwprintf() and swprintf() respectively, 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 do not invoke the

va_end

macro. However, as these functions do invoke the va_arg

macro, the value of ap after the return is indeterminate.

APPLICATION USAGE

Applications using these functions should call

va_end(ap) afterwards to clean up.

RETURN VALUE

Refer to fwprintf() .

ERRORS

Refer to fwprintf() .

AUTHOR

vwprintf() , vfwprintf() , and vswprintf() were developed by HP and Mitsubishi Electric Cor-

poration.