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/***
*putw.c - put a binary int to output stream
*
* Copyright (c) 1985-1991, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines _putw() - puts a binary int to an output stream
*
*Revision History:
* 09-02-83 RN initial version
* 11-09-87 JCR Multi-thread support
* 12-11-87 JCR Added "_LOAD_DS" to declaration
* 01-13-88 JCR Removed unnecessary calls to mthread fileno/feof/ferror
* 05-27-88 PHG Merged DLL and normal versions
* 06-15-88 JCR Near reference to _iob[] entries; improve REG variables
* 08-25-88 GJF Don't use FP_OFF() macro for the 386
* 08-18-89 GJF Clean up, now specific to OS/2 2.0 (i.e., 386 flat
* model). Also fixed copyright and indents.
* 02-15-90 GJF Fixed copyright
* 03-19-90 GJF Made calling type _CALLTYPE1, added #include
* <cruntime.h> and removed #include <register.h>.
* 07-23-90 SBM Replaced <assertm.h> by <assert.h>
* 10-03-90 GJF New-style function declarators.
* 01-21-91 GJF ANSI naming.
*
*******************************************************************************/
#include <cruntime.h>
#include <stdio.h>
#include <assert.h>
#include <file2.h>
#include <internal.h>
#include <os2dll.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 _CALLTYPE1 _putw (
int word,
FILE *str
)
{
REG1 FILE *stream;
REG3 int bytecount = sizeof(int);
REG2 char *byteptr = (char *)&word;
int retval;
#ifdef MTHREAD
int index;
#endif
assert(str != NULL);
/* Init stream pointer */
stream = str;
#ifdef MTHREAD
index = _iob_index(stream);
#endif
_lock_str(index);
while (bytecount--)
{
_putc_lk(*byteptr,stream);
++byteptr;
}
retval = (ferror(stream) ? EOF : word);
_unlock_str(index);
return(retval);
}
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