1 // The template and inlines for the -*- C++ -*- mask_array class. 2 3 // Copyright (C) 1997-2001 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 <[email protected]> 31 32 /** @file mask_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_MASK_ARRAY_H 38 #define _CPP_BITS_MASK_ARRAY_H 1 39 40 #pragma GCC system_header 41 42 namespace std { 43 44 template <class _Tp> class mask_array 45 { 46 public: 47 typedef _Tp value_type; 48 49 void operator= (const valarray<_Tp>&) const; 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 _Tp&); 61 62 // ~mask_array (); 63 64 template<class _Dom> 65 void operator= (const _Expr<_Dom,_Tp>&) const; 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 87 private: 88 mask_array (_Array<_Tp>, size_t, _Array<bool>); 89 friend class valarray<_Tp>; 90 91 const size_t _M_sz; 92 const _Array<bool> _M_mask; 93 const _Array<_Tp> _M_array; 94 95 mask_array (const mask_array&); 96 97 // not implemented 98 mask_array (); 99 mask_array& operator= (const mask_array&); 100 }; 101 102 103 template<typename _Tp> 104 inline mask_array<_Tp>::mask_array (const mask_array<_Tp>& a) 105 : _M_sz (a._M_sz), _M_mask (a._M_mask), _M_array (a._M_array) {} 106 107 template<typename _Tp> 108 inline 109 mask_array<_Tp>::mask_array (_Array<_Tp> __a, size_t __s, _Array<bool> __m) 110 : _M_sz (__s), _M_mask (__m), _M_array (__a) {} 111 112 // template<typename _Tp> 113 // inline mask_array<_Tp>::~mask_array () {} 114 115 template<typename _Tp> 116 inline void 117 mask_array<_Tp>::operator= (const _Tp& __t) 118 { __valarray_fill (_M_array, _M_sz, _M_mask, __t); } 119 120 template<typename _Tp> 121 inline void 122 mask_array<_Tp>::operator= (const valarray<_Tp>& __v) const 123 { __valarray_copy (_Array<_Tp> (__v), __v.size (), _M_array, _M_mask); } 124 125 template<typename _Tp> 126 template<class E> 127 inline void 128 mask_array<_Tp>::operator= (const _Expr<E, _Tp>& __e) const 129 { __valarray_copy (__e, __e.size (), _M_array, _M_mask); } 130 131 #undef _DEFINE_VALARRAY_OPERATOR 132 #define _DEFINE_VALARRAY_OPERATOR(op, name) \ 133 template<typename _Tp> \ 134 inline void \ 135 mask_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \ 136 { \ 137 _Array_augmented_##name (_M_array, _M_mask, \ 138 _Array<_Tp> (__v), __v.size ()); \ 139 } \ 140 \ 141 template<typename _Tp> template<class E> \ 142 inline void \ 143 mask_array<_Tp>::operator op##= (const _Expr<E, _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(^, xor) 154 _DEFINE_VALARRAY_OPERATOR(&, and) 155 _DEFINE_VALARRAY_OPERATOR(|, 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