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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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putw.c
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C/C++ Source or Header
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1998-06-17
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65 lines
/***
*putw.c - put a binary int to output stream
*
* Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines _putw() - puts a binary int to an output stream
*
*******************************************************************************/
#include <cruntime.h>
#include <stdio.h>
#include <dbgint.h>
#include <file2.h>
#include <internal.h>
#include <mtdll.h>
/***
*int _putw(word, stream) - write a binary int to an output stream
*
*Purpose:
* Writes sizeof(int) bytes to the output stream, high byte first.
* This routine should be machine independent.
*
*Entry:
* int word - integer to write
* FILE *stream - stream to write to
*
*Exit:
* returns the word put to the stream
* returns EOF if error, but this is a legit int value, so should
* test with feof() or ferror().
*
*Exceptions:
*
*******************************************************************************/
int __cdecl _putw (
int word,
FILE *str
)
{
REG1 FILE *stream;
REG3 int bytecount = sizeof(int);
REG2 char *byteptr = (char *)&word;
int retval;
_ASSERTE(str != NULL);
/* Init stream pointer */
stream = str;
_lock_str(stream);
while (bytecount--)
{
_putc_lk(*byteptr,stream);
++byteptr;
}
retval = (ferror(stream) ? EOF : word);
_unlock_str(stream);
return(retval);
}