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 <[email protected]> 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 42 namespace std { 43 44 template<typename _Tp> class gslice_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 template<class _Dom> 63 void operator= (const _Expr<_Dom,_Tp>&) const; 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 85 private: 86 _Array<_Tp> _M_array; 87 const valarray<size_t>& _M_index; 88 89 friend class valarray<_Tp>; 90 91 gslice_array (_Array<_Tp>, const valarray<size_t>&); 92 93 // this constructor needs to be implemented. 94 gslice_array (const gslice_array&); 95 96 // not implemented 97 gslice_array(); 98 gslice_array& operator= (const gslice_array&); 99 }; 100 101 template<typename _Tp> 102 inline 103 gslice_array<_Tp>::gslice_array (_Array<_Tp> __a, 104 const valarray<size_t>& __i) 105 : _M_array (__a), _M_index (__i) {} 106 107 108 template<typename _Tp> 109 inline 110 gslice_array<_Tp>::gslice_array (const gslice_array<_Tp>& __a) 111 : _M_array (__a._M_array), _M_index (__a._M_index) {} 112 113 114 template<typename _Tp> 115 inline void 116 gslice_array<_Tp>::operator= (const _Tp& __t) 117 { 118 __valarray_fill (_M_array, _Array<size_t>(_M_index), 119 _M_index.size(), __t); 120 } 121 122 template<typename _Tp> 123 inline void 124 gslice_array<_Tp>::operator= (const valarray<_Tp>& __v) const 125 { 126 __valarray_copy (_Array<_Tp> (__v), __v.size (), 127 _M_array, _Array<size_t>(_M_index)); 128 } 129 130 template<typename _Tp> 131 template<class E> 132 inline void 133 gslice_array<_Tp>::operator= (const _Expr<E, _Tp>& __e) const 134 { 135 __valarray_copy (__e, _M_index.size(), _M_array, 136 _Array<size_t>(_M_index)); 137 } 138 139 #undef _DEFINE_VALARRAY_OPERATOR 140 #define _DEFINE_VALARRAY_OPERATOR(op, name) \ 141 template<typename _Tp> \ 142 inline void \ 143 gslice_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \ 144 { \ 145 _Array_augmented_##name (_M_array, _Array<size_t>(_M_index), \ 146 _Array<_Tp> (__v), __v.size ()); \ 147 } \ 148 \ 149 template<typename _Tp> template<class E> \ 150 inline void \ 151 gslice_array<_Tp>::operator op##= (const _Expr<E, _Tp>& __e) const \ 152 { \ 153 _Array_augmented_##name (_M_array, _Array<size_t>(_M_index), __e, \ 154 _M_index.size()); \ 155 } 156 157 _DEFINE_VALARRAY_OPERATOR(*, multiplies) 158 _DEFINE_VALARRAY_OPERATOR(/, divides) 159 _DEFINE_VALARRAY_OPERATOR(%, modulus) 160 _DEFINE_VALARRAY_OPERATOR(+, plus) 161 _DEFINE_VALARRAY_OPERATOR(-, minus) 162 _DEFINE_VALARRAY_OPERATOR(^, xor) 163 _DEFINE_VALARRAY_OPERATOR(&, and) 164 _DEFINE_VALARRAY_OPERATOR(|, or) 165 _DEFINE_VALARRAY_OPERATOR(<<, shift_left) 166 _DEFINE_VALARRAY_OPERATOR(>>, shift_right) 167 168 #undef _DEFINE_VALARRAY_OPERATOR 169 170 } // std:: 171 172 #endif /* _CPP_BITS_GSLICE_ARRAY */ 173 174 // Local Variables: 175 // mode:c++ 176 // End: 177