C语言库函数的原型,有用的拿去
源代码在线查看: puts.c
/***
*puts.c - put a string to stdout
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines puts() and _putws() - put a string to stdout
*
*******************************************************************************/
#include
#include
#include
#include
#include
#include
#include
#include
/***
*int puts(string) - put a string to stdout with newline
*
*Purpose:
* Write a string to stdout; don't include '\0' but append '\n'. Uses
* temporary buffering for efficiency on stdout if unbuffered.
*
*Entry:
* char *string - string to output
*
*Exit:
* Good return = 0
* Error return = EOF
*
*Exceptions:
*
*******************************************************************************/
int __cdecl _putts (
const _TCHAR *string
)
{
int buffing;
#ifndef _UNICODE
size_t length;
size_t ndone;
#endif /* _UNICODE */
int retval = _TEOF; /* error */
_VALIDATE_RETURN( (string != NULL), EINVAL, _TEOF );
#ifndef _UNICODE
_VALIDATE_STREAM_ANSI_RETURN(stdout, EINVAL, EOF);
#endif /* _UNICODE */
_lock_str2(1, stdout);
__try {
buffing = _stbuf(stdout);
#ifdef _UNICODE
while (*string) {
if (_putwchar_nolock(*string++) == WEOF)
goto done;
}
if (_putwchar_nolock(L'\n') != WEOF)
retval = 0; /* success */
#else /* _UNICODE */
length = strlen(string);
ndone = _fwrite_nolock(string,1,length,stdout);
if (ndone == length) {
_putc_nolock('\n',stdout);
retval = 0; /* success */
}
#endif /* _UNICODE */
#ifdef _UNICODE
done:
#endif /* _UNICODE */
_ftbuf(buffing, stdout);
}
__finally {
_unlock_str2(1, stdout);
}
return retval;
}