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sdrangel/sdrbase/util/bitfieldindex.h
2016-03-08 04:54:12 +01:00

54 lines
2.9 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2015 F4EXB //
// written by Edouard Griffiths //
// //
// This program 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 as version 3 of the License, or //
// //
// This program 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef _UTIL_BITFIELDINDEX_H_
#define _UTIL_BITFIELDINDEX_H_
#include <stdint.h>
template <unsigned int size>
struct BitfieldIndex
{
uint32_t v : size;
BitfieldIndex() {}
BitfieldIndex(int i) { v = i; }
BitfieldIndex& operator=(const BitfieldIndex& rhs) { v = rhs.v; return *this; }
BitfieldIndex& operator=(const int& rhi) { v = rhi; return *this; }
BitfieldIndex& operator++() { v++; return *this; }
BitfieldIndex operator++(int) { BitfieldIndex x(*this); ++(*this); return x; }
BitfieldIndex& operator+=(const BitfieldIndex& b) { v += b.v; return *this; }
BitfieldIndex& operator-=(const BitfieldIndex& b) { v -= b.v; return *this; }
BitfieldIndex& operator+=(int i) { v += i; return *this; }
BitfieldIndex& operator-=(int i) { v -= i; return *this; }
BitfieldIndex operator+(const BitfieldIndex& b) const { BitfieldIndex x(*this); x.v += b.v; return x; }
BitfieldIndex operator-(const BitfieldIndex& b) const { BitfieldIndex x(*this); x.v -= b.v; return x; }
BitfieldIndex operator+(int i) const { BitfieldIndex x(*this); x.v += i; return x; }
BitfieldIndex operator-(int i) const { BitfieldIndex x(*this); x.v -= i; return x; }
operator int() const { return v; }
};
template <unsigned int size>
BitfieldIndex<size> operator+(const BitfieldIndex<size> &a, const BitfieldIndex<size> &b) { BitfieldIndex<size> x; x.v = x.a + x.b; return x; }
template <unsigned int size>
BitfieldIndex<size> operator-(const BitfieldIndex<size> &a, const BitfieldIndex<size> &b) { BitfieldIndex<size> x; x.v = x.a - x.b; return x; }
#endif // _UTIL_BITFIELDINDEX_H_