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54 lines
2.9 KiB
C++
54 lines
2.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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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 V3 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, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef _UTIL_BITFIELDINDEX_H_
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#define _UTIL_BITFIELDINDEX_H_
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#include <stdint.h>
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template <unsigned int size>
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struct BitfieldIndex
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{
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uint32_t v : size;
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BitfieldIndex() : v(0) {}
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BitfieldIndex(int i) { v = i; }
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BitfieldIndex& operator=(const BitfieldIndex& rhs) { v = rhs.v; return *this; }
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BitfieldIndex& operator=(const int& rhi) { v = rhi; return *this; }
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BitfieldIndex& operator++() { v++; return *this; }
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BitfieldIndex operator++(int) { BitfieldIndex x(*this); ++(*this); return x; }
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BitfieldIndex& operator+=(const BitfieldIndex& b) { v += b.v; return *this; }
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BitfieldIndex& operator-=(const BitfieldIndex& b) { v -= b.v; return *this; }
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BitfieldIndex& operator+=(int i) { v += i; return *this; }
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BitfieldIndex& operator-=(int i) { v -= i; return *this; }
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BitfieldIndex operator+(const BitfieldIndex& b) const { BitfieldIndex x(*this); x.v += b.v; return x; }
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BitfieldIndex operator-(const BitfieldIndex& b) const { BitfieldIndex x(*this); x.v -= b.v; return x; }
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BitfieldIndex operator+(int i) const { BitfieldIndex x(*this); x.v += i; return x; }
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BitfieldIndex operator-(int i) const { BitfieldIndex x(*this); x.v -= i; return x; }
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operator int() const { return v; }
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};
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template <unsigned int size>
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BitfieldIndex<size> operator+(const BitfieldIndex<size> &a, const BitfieldIndex<size> &b) { BitfieldIndex<size> x; x.v = x.a + x.b; return x; }
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template <unsigned int size>
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BitfieldIndex<size> operator-(const BitfieldIndex<size> &a, const BitfieldIndex<size> &b) { BitfieldIndex<size> x; x.v = x.a - x.b; return x; }
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#endif // _UTIL_BITFIELDINDEX_H_
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