1 // The template and inlines for the -*- C++ -*- slice_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 slice_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_SLICE_ARRAY_H 38 #define _CPP_BITS_SLICE_ARRAY_H 1 39 40 #pragma GCC system_header 41 42 namespace std 43 { 44 45 template<typename _Tp> 46 class slice_array 47 { 48 public: 49 typedef _Tp value_type; 50 51 // This constructor is implemented since we need to return a value. 52 slice_array (const slice_array&); 53 54 // This operator must be public. See DR-253. 55 slice_array& operator= (const slice_array&); 56 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 valarray<_Tp>&) const; 63 void operator^= (const valarray<_Tp>&) const; 64 void operator&= (const valarray<_Tp>&) const; 65 void operator|= (const valarray<_Tp>&) const; 66 void operator<<= (const valarray<_Tp>&) const; 67 void operator>>= (const valarray<_Tp>&) const; 68 void operator= (const _Tp &); 69 // ~slice_array (); 70 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 template<class _Dom> 86 void operator&= (const _Expr<_Dom,_Tp>&) const; 87 template<class _Dom> 88 void operator|= (const _Expr<_Dom,_Tp>&) const; 89 template<class _Dom> 90 void operator<<= (const _Expr<_Dom,_Tp>&) const; 91 template<class _Dom> 92 void operator>>= (const _Expr<_Dom,_Tp>&) const; 93 94 private: 95 friend class valarray<_Tp>; 96 slice_array(_Array<_Tp>, const slice&); 97 98 const size_t _M_sz; 99 const size_t _M_stride; 100 const _Array<_Tp> _M_array; 101 102 // not implemented 103 slice_array (); 104 }; 105 106 template<typename _Tp> 107 inline slice_array<_Tp>::slice_array (_Array<_Tp> __a, const slice& __s) 108 : _M_sz (__s.size ()), _M_stride (__s.stride ()), 109 _M_array (__a.begin () + __s.start ()) {} 110 111 112 template<typename _Tp> 113 inline slice_array<_Tp>::slice_array(const slice_array<_Tp>& a) 114 : _M_sz(a._M_sz), _M_stride(a._M_stride), _M_array(a._M_array) {} 115 116 // template<typename _Tp> 117 // inline slice_array<_Tp>::~slice_array () {} 118 119 template<typename _Tp> 120 inline slice_array<_Tp>& 121 slice_array<_Tp>::operator=(const slice_array<_Tp>& __a) 122 { 123 __valarray_copy(__a._M_array, __a._M_sz, __a._M_stride, 124 _M_array, _M_stride); 125 return *this; 126 } 127 128 129 template<typename _Tp> 130 inline void 131 slice_array<_Tp>::operator= (const _Tp& __t) 132 { __valarray_fill (_M_array, _M_sz, _M_stride, __t); } 133 134 template<typename _Tp> 135 inline void 136 slice_array<_Tp>::operator= (const valarray<_Tp>& __v) const 137 { __valarray_copy (_Array<_Tp> (__v), _M_array, _M_sz, _M_stride); } 138 139 template<typename _Tp> 140 template<class _Dom> 141 inline void 142 slice_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const 143 { __valarray_copy (__e, _M_sz, _M_array, _M_stride); } 144 145 #undef _DEFINE_VALARRAY_OPERATOR 146 #define _DEFINE_VALARRAY_OPERATOR(op, name) \ 147 template<typename _Tp> \ 148 inline void \ 149 slice_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \ 150 { \ 151 _Array_augmented_##name (_M_array, _M_sz, _M_stride, _Array<_Tp> (__v));\ 152 } \ 153 \ 154 template<typename _Tp> template<class _Dom> \ 155 inline void \ 156 slice_array<_Tp>::operator op##= (const _Expr<_Dom,_Tp>& __e) const \ 157 { \ 158 _Array_augmented_##name (_M_array, _M_stride, __e, _M_sz); \ 159 } 160 161 162 _DEFINE_VALARRAY_OPERATOR(*, multiplies) 163 _DEFINE_VALARRAY_OPERATOR(/, divides) 164 _DEFINE_VALARRAY_OPERATOR(%, modulus) 165 _DEFINE_VALARRAY_OPERATOR(+, plus) 166 _DEFINE_VALARRAY_OPERATOR(-, minus) 167 _DEFINE_VALARRAY_OPERATOR(^, xor) 168 _DEFINE_VALARRAY_OPERATOR(&, and) 169 _DEFINE_VALARRAY_OPERATOR(|, or) 170 _DEFINE_VALARRAY_OPERATOR(<<, shift_left) 171 _DEFINE_VALARRAY_OPERATOR(>>, shift_right) 172 173 #undef _DEFINE_VALARRAY_OPERATOR 174 175 } // std:: 176 177 #endif /* _CPP_BITS_SLICE_ARRAY_H */ 178 179 // Local Variables: 180 // mode:c++ 181 // End: 182