fputws.c

C标准库源代码

/***
*fputws.c - write a string to a stream
*
*       Copyright (c) 1993-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
*       defines fputws() - writes a string to a stream
*
*******************************************************************************/


#include <file2.h>
#include <internal.h>
#include <stdio.h>
#include <mtdll.h>
#include <tchar.h>
#include <wchar.h>
#include <dbgint.h>

/***
*int fputws(string, stream) - write a string to a file
*
*Purpose:
*       Output the given string to the stream, don't write the L'\0' or
*       supply a L'\n'. Uses _stbuf and _ftbuf for efficiency reasons.
*
*Entry:
*       wchar_t *string - string to write
*       FILE *stream - stream to write to.
*
*Exit:
*       Good return   = 0
*       Error return  = WEOF
*
*Exceptions:
*
*******************************************************************************/

int __cdecl fputws (
        const wchar_t *string,
        FILE *stream
        )
{
        unsigned int length;
        int retval = 0;

        _ASSERTE(string != NULL);
        _ASSERTE(stream != NULL);

        length = wcslen(string);

        _lock_str(stream);

        while (length--)
        {
            if (_putwc_lk(*string++, stream) == WEOF)
            {
                retval = -1;
                break;
            }
        }

        _unlock_str(stream);

        return(retval);
}