gslice_array.h revision 117397
1// The template and inlines for the -*- C++ -*- gslice_array class. 2 3// Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 2, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING. If not, write to the Free 18// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 19// USA. 20 21// As a special exception, you may use this file as part of a free software 22// library without restriction. Specifically, if other files instantiate 23// templates or use macros or inline functions from this file, or you compile 24// this file and link it with other files to produce an executable, this 25// file does not by itself cause the resulting executable to be covered by 26// the GNU General Public License. This exception does not however 27// invalidate any other reasons why the executable file might be covered by 28// the GNU General Public License. 29 30// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr> 31 32/** @file gslice_array.h 33 * This is an internal header file, included by other library headers. 34 * You should not attempt to use it directly. 35 */ 36 37#ifndef _CPP_BITS_GSLICE_ARRAY 38#define _CPP_BITS_GSLICE_ARRAY 1 39 40#pragma GCC system_header 41 42namespace std { 43 44 template<typename _Tp> 45 class gslice_array 46 { 47 public: 48 typedef _Tp value_type; 49 50 void operator=(const valarray<_Tp>&) const; 51 void operator*=(const valarray<_Tp>&) const; 52 void operator/=(const valarray<_Tp>&) const; 53 void operator%=(const valarray<_Tp>&) const; 54 void operator+=(const valarray<_Tp>&) const; 55 void operator-=(const valarray<_Tp>&) const; 56 void operator^=(const valarray<_Tp>&) const; 57 void operator&=(const valarray<_Tp>&) const; 58 void operator|=(const valarray<_Tp>&) const; 59 void operator<<=(const valarray<_Tp>&) const; 60 void operator>>=(const valarray<_Tp>&) const; 61 void operator=(const _Tp&) const; 62 63 template<class _Dom> 64 void operator=(const _Expr<_Dom,_Tp>&) const; 65 template<class _Dom> 66 void operator*=(const _Expr<_Dom,_Tp>&) const; 67 template<class _Dom> 68 void operator/=(const _Expr<_Dom,_Tp>&) const; 69 template<class _Dom> 70 void operator%=(const _Expr<_Dom,_Tp>&) const; 71 template<class _Dom> 72 void operator+=(const _Expr<_Dom,_Tp>&) const; 73 template<class _Dom> 74 void operator-=(const _Expr<_Dom,_Tp>&) const; 75 template<class _Dom> 76 void operator^=(const _Expr<_Dom,_Tp>&) const; 77 template<class _Dom> 78 void operator&=(const _Expr<_Dom,_Tp>&) const; 79 template<class _Dom> 80 void operator|=(const _Expr<_Dom,_Tp>&) const; 81 template<class _Dom> 82 void operator<<=(const _Expr<_Dom,_Tp>&) const; 83 template<class _Dom> 84 void operator>>=(const _Expr<_Dom,_Tp>&) const; 85 86 private: 87 _Array<_Tp> _M_array; 88 const valarray<size_t>& _M_index; 89 90 friend class valarray<_Tp>; 91 92 gslice_array(_Array<_Tp>, const valarray<size_t>&); 93 94 // this constructor needs to be implemented. 95 gslice_array(const gslice_array&); 96 97 // not implemented 98 gslice_array(); 99 gslice_array& operator= (const gslice_array&); 100 }; 101 102 template<typename _Tp> 103 inline 104 gslice_array<_Tp>::gslice_array(_Array<_Tp> __a, 105 const valarray<size_t>& __i) 106 : _M_array(__a), _M_index(__i) {} 107 108 109 template<typename _Tp> 110 inline 111 gslice_array<_Tp>::gslice_array(const gslice_array<_Tp>& __a) 112 : _M_array(__a._M_array), _M_index(__a._M_index) {} 113 114 115 template<typename _Tp> 116 inline void 117 gslice_array<_Tp>::operator=(const _Tp& __t) const 118 { 119 __valarray_fill(_M_array, _Array<size_t>(_M_index), 120 _M_index.size(), __t); 121 } 122 123 template<typename _Tp> 124 inline void 125 gslice_array<_Tp>::operator=(const valarray<_Tp>& __v) const 126 { 127 __valarray_copy(_Array<_Tp>(__v), __v.size(), 128 _M_array, _Array<size_t>(_M_index)); 129 } 130 131 template<typename _Tp> 132 template<class _Dom> 133 inline void 134 gslice_array<_Tp>::operator=(const _Expr<_Dom, _Tp>& __e) const 135 { 136 __valarray_copy (__e, _M_index.size(), _M_array, 137 _Array<size_t>(_M_index)); 138 } 139 140#undef _DEFINE_VALARRAY_OPERATOR 141#define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \ 142 template<typename _Tp> \ 143 inline void \ 144 gslice_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \ 145 { \ 146 _Array_augmented_##_Name(_M_array, _Array<size_t>(_M_index), \ 147 _Array<_Tp>(__v), __v.size()); \ 148 } \ 149 \ 150 template<typename _Tp> \ 151 template<class _Dom> \ 152 inline void \ 153 gslice_array<_Tp>::operator _Op##= (const _Expr<_Dom, _Tp>& __e) const\ 154 { \ 155 _Array_augmented_##_Name(_M_array, _Array<size_t>(_M_index), __e,\ 156 _M_index.size()); \ 157 } 158 159_DEFINE_VALARRAY_OPERATOR(*, __multiplies) 160_DEFINE_VALARRAY_OPERATOR(/, __divides) 161_DEFINE_VALARRAY_OPERATOR(%, __modulus) 162_DEFINE_VALARRAY_OPERATOR(+, __plus) 163_DEFINE_VALARRAY_OPERATOR(-, __minus) 164_DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor) 165_DEFINE_VALARRAY_OPERATOR(&, __bitwise_and) 166_DEFINE_VALARRAY_OPERATOR(|, __bitwise_or) 167_DEFINE_VALARRAY_OPERATOR(<<, __shift_left) 168_DEFINE_VALARRAY_OPERATOR(>>, __shift_right) 169 170#undef _DEFINE_VALARRAY_OPERATOR 171 172} // std:: 173 174#endif /* _CPP_BITS_GSLICE_ARRAY */ 175 176// Local Variables: 177// mode:c++ 178// End: 179