fputs.c

来自「C语言库函数的原型,有用的拿去」· C语言 代码 · 共 66 行

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

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

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

int __cdecl fputs (
        const char *string,
        FILE *stream
        )
{
    REG2 int buffing;
    REG1 size_t length;
    REG3 size_t ndone;

    _VALIDATE_RETURN((string != NULL), EINVAL, EOF);
    _VALIDATE_RETURN((stream != NULL), EINVAL, EOF);
    _VALIDATE_STREAM_ANSI_RETURN(stream, EINVAL, EOF);

    length = strlen(string);

    _lock_str(stream);
    __try {
        buffing = _stbuf(stream);
        ndone = _fwrite_nolock(string,1,length,stream);
        _ftbuf(buffing, stream);
    }
    __finally {
        _unlock_str(stream);
    }


    return(ndone == length ? 0 : EOF);
}