1// The template and inlines for the -*- C++ -*- indirect_array class. 2 3// Copyright (C) 1997-1999 Cygnus Solutions 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#ifndef __INDIRECT_ARRAY__ 33#define __INDIRECT_ARRAY__ 34 35extern "C++" { 36 37template <class _Tp> class indirect_array 38{ 39public: 40 typedef _Tp value_type; 41 42 void operator= (const valarray<_Tp>&) const; 43 void operator*= (const valarray<_Tp>&) const; 44 void operator/= (const valarray<_Tp>&) const; 45 void operator%= (const valarray<_Tp>&) const; 46 void operator+= (const valarray<_Tp>&) const; 47 void operator-= (const valarray<_Tp>&) const; 48 void operator^= (const valarray<_Tp>&) const; 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 _Tp&); 54 55 template<class _Dom> 56 void operator= (const _Expr<_Dom, _Tp>&) const; 57 template<class _Dom> 58 void operator*= (const _Expr<_Dom, _Tp>&) const; 59 template<class _Dom> 60 void operator/= (const _Expr<_Dom, _Tp>&) const; 61 template<class _Dom> 62 void operator%= (const _Expr<_Dom, _Tp>&) const; 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 78private: 79 indirect_array (const indirect_array&); 80 indirect_array (_Array<_Tp>, size_t, _Array<size_t>); 81 82 friend class valarray<_Tp>; 83 friend class gslice_array<_Tp>; 84 85 const size_t _M_sz; 86 const _Array<size_t> _M_index; 87 const _Array<_Tp> _M_array; 88 89 // not implemented 90 indirect_array (); 91 indirect_array& operator= (const indirect_array&); 92}; 93 94template<typename _Tp> 95inline indirect_array<_Tp>::indirect_array(const indirect_array<_Tp>& __a) 96 : _M_sz (__a._M_sz), _M_index (__a._M_index), 97 _M_array (__a._M_array) {} 98 99template<typename _Tp> 100inline 101indirect_array<_Tp>::indirect_array (_Array<_Tp> __a, size_t __s, 102 _Array<size_t> __i) 103 : _M_sz (__s), _M_index (__i), _M_array (__a) {} 104 105 106template<typename _Tp> 107inline void 108indirect_array<_Tp>::operator= (const _Tp& __t) 109{ __valarray_fill(_M_array, _M_index, _M_sz, __t); } 110 111template<typename _Tp> 112inline void 113indirect_array<_Tp>::operator= (const valarray<_Tp>& __v) const 114{ __valarray_copy (_Array<_Tp> (__v), _M_sz, _M_array, _M_index); } 115 116template<typename _Tp> 117template<class _Dom> 118inline void 119indirect_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const 120{ __valarray_copy (__e, _M_sz, _M_array, _M_index); } 121 122#undef _DEFINE_VALARRAY_OPERATOR 123#define _DEFINE_VALARRAY_OPERATOR(op, name) \ 124template<typename _Tp> \ 125inline void \ 126indirect_array<_Tp>::operator##op##= (const valarray<_Tp>& __v) const \ 127{ \ 128 _Array_augmented_##name (_M_array, _M_index, _Array<_Tp> (__v), _M_sz); \ 129} \ 130 \ 131template<typename _Tp> template<class _Dom> \ 132inline void \ 133indirect_array<_Tp>::operator##op##= (const _Expr<_Dom,_Tp>& __e) const \ 134{ \ 135 _Array_augmented_##name (_M_array, _M_index, __e, _M_sz); \ 136} 137 138_DEFINE_VALARRAY_OPERATOR(*, multiplies) 139_DEFINE_VALARRAY_OPERATOR(/, divides) 140_DEFINE_VALARRAY_OPERATOR(%, modulus) 141_DEFINE_VALARRAY_OPERATOR(+, plus) 142_DEFINE_VALARRAY_OPERATOR(-, minus) 143_DEFINE_VALARRAY_OPERATOR(^, xor) 144_DEFINE_VALARRAY_OPERATOR(&, and) 145_DEFINE_VALARRAY_OPERATOR(|, or) 146_DEFINE_VALARRAY_OPERATOR(<<, shift_left) 147_DEFINE_VALARRAY_OPERATOR(>>, shift_right) 148 149#undef _DEFINE_VALARRAY_OPERATOR 150 151} // extern "C++" 152 153#endif // __INDIRECT_ARRAY__ 154 155// Local Variables: 156// mode:c++ 157// End: 158