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vfwprintf()

Write formatted wide-character output to a file (varargs)

Synopsis:

#include <wchar.h>
#include <stdarg.h>

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

Arguments:

fp
The stream to which you want to send the output.
format
A wide-character string that specifies the format of the output. The formatting string determines what additional arguments you need to provide. For more information, see printf().
arg
A variable-argument list of the additional arguments, which you must have initialized with the va_start() macro.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The vfwprintf() function writes output to the file pointed to by fp, under control of the argument format.

The vfwprint() function is the wide-character version of vfprintf(), and is a “varargs” version of fwprintf().

Returns:

The number of wide characters written, excluding the terminating NUL, or a negative number if an error occurred (errno is set).

Classification:

ANSI, POSIX 1003.1

Safety:
Cancellation point No
Interrupt handler No
Signal handler No
Thread Yes

See also:

errno, fprintf(), fwprintf(), printf(), snprintf(), sprintf(), swprintf(), va_start(), vfprintf(), vprintf(), vsnprintf(), vsprintf(), vswprintf(), vwprintf(), wprintf()


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