ostinptr.cpp

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C++ 代码 · 共 71 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:
*
****************************************************************************/

#ifdef __SW_FH
#include "iost.h"
#else
#include "variety.h"
#include <stdlib.h>
#include <iostream>
#endif
#include "ioutil.h"
#include "lock.h"
#include "osthdr.h"

namespace std {

  // Write the value of a pointer (the address contained in the pointer).

  ostream &ostream::operator << ( void *p ) {

    char buf[LONGEST_INTEGER + 1];

    __lock_it( __i_lock );

    // Prefix:
    buf[0] = '0';
    buf[1] = (char) ((flags() & ios::uppercase) ? 'X' : 'x');

    // Digits:
    ultoa( (long) p, buf + 2, 16 );
    if( flags() & ios::uppercase ) {
        strupr( buf );
    }

    // Write the number:
    if( opfx() ) {
        setstate( __WATCOM_ios::writeitem( *this, buf, ::strlen( buf ), 2 ) );
        osfx();
    }
    return( *this );
  }

}