windows-server-2003/base/crts/crtw32/stdio/wprintf.c

/***
*wprintf.c - print formatted
*
*       Copyright (c) 1992-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
*       defines wprintf() - print formatted data
*
*Revision History:
*       05-16-92  KRS   Created from printf.c.
*       04-06-93  SKS   Replace _CRTAPI* with __cdecl
*       02-07-94  CFW   POSIXify.
*       09-06-94  CFW   Replace MTHREAD with _MT.
*       02-06-95  CFW   assert -> _ASSERTE.
*       03-07-95  GJF   Use _[un]lock_str2 instead of _[un]lock_str. Also,
*                       removed useless local and macros.
*       03-02-98  GJF   Exception-safe locking.
*
*******************************************************************************/

#ifndef _POSIX_

#include <cruntime.h>
#include <stdio.h>
#include <dbgint.h>
#include <stdarg.h>
#include <file2.h>
#include <internal.h>
#include <mtdll.h>

/***
*int wprintf(format, ...) - print formatted data
*
*Purpose:
*       Prints formatted data on stdout using the format string to
*       format data and getting as many arguments as called for
*       Uses temporary buffering to improve efficiency.
*       _output does the real work here
*
*Entry:
*       wchar_t *format - format string to control data format/number of arguments
*       followed by list of arguments, number and type controlled by
*       format string
*
*Exit:
*       returns number of wide characters printed
*
*Exceptions:
*
*******************************************************************************/

int __cdecl wprintf (
        const wchar_t *format,
        ...
        )
/*
 * stdout 'W'char_t 'PRINT', 'F'ormatted
 */
{
        va_list arglist;
        int buffing;
        int retval;

// UNDONE: make va_start work with wchar_t format string
        va_start(arglist, format);

        _ASSERTE(format != NULL);

#ifdef  _MT
        _lock_str2(1, stdout);
        __try {
#endif

        buffing = _stbuf(stdout);

        retval = _woutput(stdout,format,arglist);

        _ftbuf(buffing, stdout);

#ifdef  _MT
        }
        __finally {
            _unlock_str2(1, stdout);
        }
#endif

        return(retval);
}

#endif /* _POSIX_ */