vwprintf()

Write formatted output to standard output (varargs)

Synopsis:

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

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

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.

libc

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

The vwprintf() function writes output to the file stdout, under control of the argument format.

The vwprint() function is the wide-character version of vprintf(), and is a “varargs” version of wprintf().

The number of characters written, or a negative value if an output error occurred (errno is set).