ostadpre.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 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
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*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
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* Description:
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#ifdef __SW_FH
#include "iost.h"
#else
#include "variety.h"
#include <iostream>
#endif
#include "osthdr.h"

// Add a prefix to an output integer representing the base used. Add 0
// for octal numbers, except for zero. Add 0x or 0X for hex numbers. Add
// nothing for decimal numbers.

void __AddPrefix( char iszero,
                  char *buffer,
                  int &size,
                  int base,
                  long format_flags ) {

    if( format_flags & std::ios::showbase ) {
        if( base == 8 ) {
            if( !iszero ) {
                buffer[size++] = '0';
            }
        } else if( base == 16 ) {
            buffer[size++] = '0';
            buffer[size++] = (char)((format_flags & std::ios::uppercase) ? 'X' : 'x');
        }
    }
}