1 // The template and inlines for the -*- C++ -*- mask_array class. 2 3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 4 // Free Software Foundation, Inc. 5 // 6 // This file is part of the GNU ISO C++ Library. This library is free 7 // software; you can redistribute it and/or modify it under the 8 // terms of the GNU General Public License as published by the 9 // Free Software Foundation; either version 2, or (at your option) 10 // any later version. 11 12 // This library is distributed in the hope that it will be useful, 13 // but WITHOUT ANY WARRANTY; without even the implied warranty of 14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 // GNU General Public License for more details. 16 17 // You should have received a copy of the GNU General Public License along 18 // with this library; see the file COPYING. If not, write to the Free 19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 20 // USA. 21 22 // As a special exception, you may use this file as part of a free software 23 // library without restriction. Specifically, if other files instantiate 24 // templates or use macros or inline functions from this file, or you compile 25 // this file and link it with other files to produce an executable, this 26 // file does not by itself cause the resulting executable to be covered by 27 // the GNU General Public License. This exception does not however 28 // invalidate any other reasons why the executable file might be covered by 29 // the GNU General Public License. 30 31 // Written by Gabriel Dos Reis <[email protected]> 32 33 /** @file mask_array.h 34 * This is an internal header file, included by other library headers. 35 * You should not attempt to use it directly. 36 */ 37 38 #ifndef _CPP_BITS_MASK_ARRAY_H 39 #define _CPP_BITS_MASK_ARRAY_H 1 40 41 #pragma GCC system_header 42 43 namespace std { 44 45 template <class _Tp> 46 class mask_array 47 { 48 public: 49 typedef _Tp value_type; 50 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 valarray<_Tp>&) const; 62 void operator=(const _Tp&) const; 63 64 // ~mask_array (); 65 66 template<class _Dom> 67 void operator=(const _Expr<_Dom,_Tp>&) const; 68 template<class _Dom> 69 void operator*=(const _Expr<_Dom,_Tp>&) const; 70 template<class _Dom> 71 void operator/=(const _Expr<_Dom,_Tp>&) const; 72 template<class _Dom> 73 void operator%=(const _Expr<_Dom,_Tp>&) const; 74 template<class _Dom> 75 void operator+=(const _Expr<_Dom,_Tp>&) const; 76 template<class _Dom> 77 void operator-=(const _Expr<_Dom,_Tp>&) const; 78 template<class _Dom> 79 void operator^=(const _Expr<_Dom,_Tp>&) const; 80 template<class _Dom> 81 void operator&=(const _Expr<_Dom,_Tp>&) const; 82 template<class _Dom> 83 void operator|=(const _Expr<_Dom,_Tp>&) const; 84 template<class _Dom> 85 void operator<<=(const _Expr<_Dom,_Tp>&) const; 86 template<class _Dom> 87 void operator>>=(const _Expr<_Dom,_Tp>&) const; 88 89 private: 90 mask_array(_Array<_Tp>, size_t, _Array<bool>); 91 friend class valarray<_Tp>; 92 93 const size_t _M_sz; 94 const _Array<bool> _M_mask; 95 const _Array<_Tp> _M_array; 96 97 mask_array (const mask_array&); 98 99 // not implemented 100 mask_array(); 101 mask_array& operator=(const mask_array&); 102 }; 103 104 105 template<typename _Tp> 106 inline mask_array<_Tp>::mask_array(const mask_array<_Tp>& a) 107 : _M_sz(a._M_sz), _M_mask(a._M_mask), _M_array(a._M_array) {} 108 109 template<typename _Tp> 110 inline 111 mask_array<_Tp>::mask_array(_Array<_Tp> __a, size_t __s, _Array<bool> __m) 112 : _M_sz(__s), _M_mask(__m), _M_array(__a) {} 113 114 template<typename _Tp> 115 inline void 116 mask_array<_Tp>::operator=(const _Tp& __t) const 117 { __valarray_fill(_M_array, _M_sz, _M_mask, __t); } 118 119 template<typename _Tp> 120 inline void 121 mask_array<_Tp>::operator=(const valarray<_Tp>& __v) const 122 { __valarray_copy(_Array<_Tp>(__v), __v.size(), _M_array, _M_mask); } 123 124 template<typename _Tp> 125 template<class _Ex> 126 inline void 127 mask_array<_Tp>::operator=(const _Expr<_Ex, _Tp>& __e) const 128 { __valarray_copy(__e, __e.size(), _M_array, _M_mask); } 129 130 #undef _DEFINE_VALARRAY_OPERATOR 131 #define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \ 132 template<typename _Tp> \ 133 inline void \ 134 mask_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \ 135 { \ 136 _Array_augmented_##_Name(_M_array, _M_mask, \ 137 _Array<_Tp>(__v), __v.size()); \ 138 } \ 139 \ 140 template<typename _Tp> \ 141 template<class _Dom> \ 142 inline void \ 143 mask_array<_Tp>::operator _Op##=(const _Expr<_Dom, _Tp>& __e) const\ 144 { \ 145 _Array_augmented_##_Name(_M_array, _M_mask, __e, __e.size()); \ 146 } 147 148 _DEFINE_VALARRAY_OPERATOR(*, __multiplies) 149 _DEFINE_VALARRAY_OPERATOR(/, __divides) 150 _DEFINE_VALARRAY_OPERATOR(%, __modulus) 151 _DEFINE_VALARRAY_OPERATOR(+, __plus) 152 _DEFINE_VALARRAY_OPERATOR(-, __minus) 153 _DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor) 154 _DEFINE_VALARRAY_OPERATOR(&, __bitwise_and) 155 _DEFINE_VALARRAY_OPERATOR(|, __bitwise_or) 156 _DEFINE_VALARRAY_OPERATOR(<<, __shift_left) 157 _DEFINE_VALARRAY_OPERATOR(>>, __shift_right) 158 159 #undef _DEFINE_VALARRAY_OPERATOR 160 161 } // std:: 162 163 #endif /* _CPP_BITS_MASK_ARRAY_H */ 164 165 // Local Variables: 166 // mode:c++ 167 // End: 168