cprintf.c

开放源码的编译器open watcom 1.6.0版的源代码

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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*    NON-INFRINGEMENT. Please see the License for the specific language
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
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****************************************************************************/


#include "variety.h"
#include <stdio.h>
#include <conio.h>
#include <stdarg.h>
#include "printf.h"

/*
 * con_putc -- output character to console
 */
static slib_callback_t con_putc; // setup calling convention
static void __SLIB_CALLBACK con_putc( SPECS __SLIB *specs, int op_char )
{
    if( op_char == putch( op_char ) ) {
        specs->_output_count++;
    }
}


_WCRTLINK int vcprintf( const char *format, va_list arg )
{
    slib_callback_t *tmp;

#if defined( __386__ ) && defined( __QNX__ )
    /* avoid some segment relocations for 32-bit QNX */
    tmp = (void (*)())con_putc;
#else
    tmp = con_putc;
#endif
    return( __prtf( NULL, format, arg, tmp ) );
}


_WCRTLINK int cprintf( const char *format, ... )
{
    auto va_list    args;
    slib_callback_t *tmp;

    va_start( args, format );
#if defined( __386__ ) && defined( __QNX__ )
    /* avoid some segment relocations for 32-bit QNX */
    tmp = (void (*)())con_putc;
#else
    tmp = con_putc;
#endif
    return( __prtf( NULL, format, args, tmp ) );
}