div.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 60 行

/****************************************************************************
*
*                            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
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  Implementation of div().
*
****************************************************************************/


#undef __INLINE_FUNCTIONS__
#include "variety.h"
#include <stdlib.h>


#if defined(_M_I86)
extern  div_t   __div( int, int );
#pragma aux     __div = "cwd"           \
                        "idiv cx"       \
                        parm [ax] [cx]  \
                        value [ax dx]   \
                        modify exact [ax dx];
#endif


_WCRTLINK div_t div( int numer, int denom )
/*****************************************/
{
#ifdef _M_I86
    return( __div( numer, denom ) );
#else
    div_t   result;

    result.quot = numer / denom;
    result.rem  = numer % denom;
    return( result );
#endif
}