Source code of Windows XP (NT5)
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/***
*fputc.c - write a character to an output stream
*
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines fputc() - writes a character to a stream
* defines fputwc() - writes a wide character to a stream
*
*Revision History:
* 09-01-83 RN initial version
* 11-09-87 JCR Multi-thread support
* 12-11-87 JCR Added "_LOAD_DS" to declaration
* 05-27-88 PHG Merged DLL and normal versions
* 06-14-88 JCR Near reference to _iob[] entries; improve REG variables
* 08-25-88 GJF Don't use FP_OFF() macro for the 386
* 06-21-89 PHG Added putc() function
* 08-28-89 JCR Removed _NEAR_ for 386
* 02-15-90 GJF Fixed copyright and indents.
* 03-19-90 GJF Replaced _LOAD_DS with _CALLTYPE1, added #include
* <cruntime.h> and removed #include <register.h>. Also,
* removed some leftover 16-bit support.
* 07-24-90 SBM Replaced <assertm.h> by <assert.h>
* 10-02-90 GJF New-style function declarators.
* 04-06-93 SKS Replace _CRTAPI* with __cdecl
* 04-26-93 CFW Wide char enable.
* 04-30-93 CFW Remove wide char support to fputwc.c.
* 09-06-94 CFW Replace MTHREAD with _MT.
* 02-06-94 CFW assert -> _ASSERTE.
* 03-07-95 GJF _[un]lock_str macros now take FILE * arg.
* 02-20-97 GJF Removed unnecessary local from fputc(). Made putc()
* identical to fputc(). Also, detab-ed.
* 02-27-98 GJF Exception-safe locking.
*
*******************************************************************************/
#include <cruntime.h>
#include <stdio.h>
#include <dbgint.h>
#include <file2.h>
#include <internal.h>
#include <mtdll.h>
/***
*int fputc(ch, stream) - write a character to a stream
*
*Purpose:
* Writes a character to a stream. Function version of putc().
*
*Entry:
* int ch - character to write
* FILE *stream - stream to write to
*
*Exit:
* returns the character if successful
* returns EOF if fails
*
*Exceptions:
*
*******************************************************************************/
int __cdecl fputc (
int ch,
FILE *str
)
{
int retval;
_ASSERTE(str != NULL);
#ifdef _MT
_lock_str(str);
__try {
#endif
retval = _putc_lk(ch,str);
#ifdef _MT
}
__finally {
_unlock_str(str);
}
#endif
return(retval);
}
#undef putc
int __cdecl putc (
int ch,
FILE *str
)
{
int retval;
_ASSERTE(str != NULL);
#ifdef _MT
_lock_str(str);
__try {
#endif
retval = _putc_lk(ch,str);
#ifdef _MT
}
__finally {
_unlock_str(str);
}
#endif
return(retval);
}