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CodeCache.h
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1998-03-25
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// $Id: CodeCache.h,v 1.10 1998/03/25 12:42:37 zeller Exp $ -*- C++ -*-
// Machine Code Cache
// Copyright (C) 1995 Technische Universitaet Braunschweig, Germany.
// Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
//
// This file is part of DDD.
//
// DDD is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// DDD is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with DDD -- see the file COPYING.
// If not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// DDD is the data display debugger.
// For details, see the DDD World-Wide-Web page,
// `http://www.cs.tu-bs.de/softech/ddd/',
// or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
#ifndef _DDD_CodeCache_h
#define _DDD_CodeCache_h
#ifdef __GNUG__
#pragma interface
#endif
#include "strclass.h"
#include "bool.h"
#include "VarArray.h"
#include <ctype.h>
// A single entry in the code cache
struct CodeCacheEntry {
string start; // First location
string end; // Last location
string code; // Actual code
CodeCacheEntry()
: start(), end(), code()
{}
CodeCacheEntry(const string& s, const string& e, const string& c)
: start(s), end(e), code(c)
{}
CodeCacheEntry(const CodeCacheEntry& cce)
: start(cce.start), end(cce.end), code(cce.code)
{}
CodeCacheEntry& operator = (const CodeCacheEntry& cce)
{
start = cce.start;
end = cce.end;
code = cce.code;
return *this;
}
bool operator == (const CodeCacheEntry& cce)
{
return start == cce.start
&& end == cce.end
&& code == cce.code;
}
bool operator != (const CodeCacheEntry& cce)
{
return !operator==(cce);
}
};
typedef VarArray<CodeCacheEntry> CodeCache;
// Compare addresses:
// return Z such that Z < 0 if X < Y, Z == 0 if X == Y, Z > 0 if X > Y
int compare_address(const string& x, const string& y);
// Return true if C is a leading zero character
inline bool is_leading_zero(char c)
{
return c == '0' || c == 'x' || c == 'X' || c == 'H' || c == '\''
|| isspace(c);
}
// Return true if C is a trailing zero character
inline bool is_trailing_zero(char c)
{
return c == 'h' || c == 'H' || isspace(c);
}
#endif // _DDD_CodeCache_h
// DON'T ADD ANYTHING BEHIND THIS #endif