58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
#ifndef __vhdlreal_h
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#define __vhdlreal_h
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/*
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* Copyright (c) 2011 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <iostream>
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#include <cmath>
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/*
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* This class holds a floating point decimal number. The number is
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* stored as double. All based numbers are converted by an external
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* function to a double and then stored as class instance.
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*/
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class vhdlreal
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{
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public:
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friend std::ostream& operator<< (std::ostream&, const vhdlreal&);
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friend vhdlreal operator+ (const vhdlreal&, const vhdlreal&);
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friend vhdlreal operator- (const vhdlreal&, const vhdlreal&);
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friend vhdlreal operator* (const vhdlreal&, const vhdlreal&);
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friend vhdlreal operator/ (const vhdlreal&, const vhdlreal&);
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friend vhdlreal operator% (const vhdlreal&, const vhdlreal&);
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friend vhdlreal pow(const vhdlreal&, const vhdlreal&);
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// Unary minus.
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friend vhdlreal operator- (const vhdlreal&);
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explicit vhdlreal();
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explicit vhdlreal(const char*text);
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explicit vhdlreal(const double& val);
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vhdlreal(const vhdlreal& val);
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virtual ~vhdlreal() {};
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double as_double() const
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{
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return value_;
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}
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private:
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double value_;
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};
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#endif
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