gslice_array.h

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00001 // The template and inlines for the -*- C++ -*- gslice_array class. 00002 00003 // Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. 00004 // 00005 // This file is part of the GNU ISO C++ Library. This library is free 00006 // software; you can redistribute it and/or modify it under the 00007 // terms of the GNU General Public License as published by the 00008 // Free Software Foundation; either version 2, or (at your option) 00009 // any later version. 00010 00011 // This library is distributed in the hope that it will be useful, 00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 // GNU General Public License for more details. 00015 00016 // You should have received a copy of the GNU General Public License along 00017 // with this library; see the file COPYING. If not, write to the Free 00018 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 00019 // USA. 00020 00021 // As a special exception, you may use this file as part of a free software 00022 // library without restriction. Specifically, if other files instantiate 00023 // templates or use macros or inline functions from this file, or you compile 00024 // this file and link it with other files to produce an executable, this 00025 // file does not by itself cause the resulting executable to be covered by 00026 // the GNU General Public License. This exception does not however 00027 // invalidate any other reasons why the executable file might be covered by 00028 // the GNU General Public License. 00029 00030 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr> 00031 00037 #ifndef _CPP_BITS_GSLICE_ARRAY 00038 #define _CPP_BITS_GSLICE_ARRAY 1 00039 00040 #pragma GCC system_header 00041 00042 namespace std { 00043 00044 template<typename _Tp> class gslice_array 00045 { 00046 public: 00047 typedef _Tp value_type; 00048 00049 void operator= (const valarray<_Tp>&) const; 00050 void operator*= (const valarray<_Tp>&) const; 00051 void operator/= (const valarray<_Tp>&) const; 00052 void operator%= (const valarray<_Tp>&) const; 00053 void operator+= (const valarray<_Tp>&) const; 00054 void operator-= (const valarray<_Tp>&) const; 00055 void operator^= (const valarray<_Tp>&) const; 00056 void operator&= (const valarray<_Tp>&) const; 00057 void operator|= (const valarray<_Tp>&) const; 00058 void operator<<=(const valarray<_Tp>&) const; 00059 void operator>>=(const valarray<_Tp>&) const; 00060 void operator=(const _Tp&); 00061 00062 template<class _Dom> 00063 void operator= (const _Expr<_Dom,_Tp>&) const; 00064 template<class _Dom> 00065 void operator*= (const _Expr<_Dom,_Tp>&) const; 00066 template<class _Dom> 00067 void operator/= (const _Expr<_Dom,_Tp>&) const; 00068 template<class _Dom> 00069 void operator%= (const _Expr<_Dom,_Tp>&) const; 00070 template<class _Dom> 00071 void operator+= (const _Expr<_Dom,_Tp>&) const; 00072 template<class _Dom> 00073 void operator-= (const _Expr<_Dom,_Tp>&) const; 00074 template<class _Dom> 00075 void operator^= (const _Expr<_Dom,_Tp>&) const; 00076 template<class _Dom> 00077 void operator&= (const _Expr<_Dom,_Tp>&) const; 00078 template<class _Dom> 00079 void operator|= (const _Expr<_Dom,_Tp>&) const; 00080 template<class _Dom> 00081 void operator<<= (const _Expr<_Dom,_Tp>&) const; 00082 template<class _Dom> 00083 void operator>>= (const _Expr<_Dom,_Tp>&) const; 00084 00085 private: 00086 _Array<_Tp> _M_array; 00087 const valarray<size_t>& _M_index; 00088 00089 friend class valarray<_Tp>; 00090 00091 gslice_array (_Array<_Tp>, const valarray<size_t>&); 00092 00093 // this constructor needs to be implemented. 00094 gslice_array (const gslice_array&); 00095 00096 // not implemented 00097 gslice_array(); 00098 gslice_array& operator= (const gslice_array&); 00099 }; 00100 00101 template<typename _Tp> 00102 inline 00103 gslice_array<_Tp>::gslice_array (_Array<_Tp> __a, 00104 const valarray<size_t>& __i) 00105 : _M_array (__a), _M_index (__i) {} 00106 00107 00108 template<typename _Tp> 00109 inline 00110 gslice_array<_Tp>::gslice_array (const gslice_array<_Tp>& __a) 00111 : _M_array (__a._M_array), _M_index (__a._M_index) {} 00112 00113 00114 template<typename _Tp> 00115 inline void 00116 gslice_array<_Tp>::operator= (const _Tp& __t) 00117 { 00118 __valarray_fill (_M_array, _Array<size_t>(_M_index), 00119 _M_index.size(), __t); 00120 } 00121 00122 template<typename _Tp> 00123 inline void 00124 gslice_array<_Tp>::operator= (const valarray<_Tp>& __v) const 00125 { 00126 __valarray_copy (_Array<_Tp> (__v), __v.size (), 00127 _M_array, _Array<size_t>(_M_index)); 00128 } 00129 00130 template<typename _Tp> 00131 template<class E> 00132 inline void 00133 gslice_array<_Tp>::operator= (const _Expr<E, _Tp>& __e) const 00134 { 00135 __valarray_copy (__e, _M_index.size(), _M_array, 00136 _Array<size_t>(_M_index)); 00137 } 00138 00139 #undef _DEFINE_VALARRAY_OPERATOR 00140 #define _DEFINE_VALARRAY_OPERATOR(op, name) \ 00141 template<typename _Tp> \ 00142 inline void \ 00143 gslice_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \ 00144 { \ 00145 _Array_augmented_##name (_M_array, _Array<size_t>(_M_index), \ 00146 _Array<_Tp> (__v), __v.size ()); \ 00147 } \ 00148 \ 00149 template<typename _Tp> template<class E> \ 00150 inline void \ 00151 gslice_array<_Tp>::operator op##= (const _Expr<E, _Tp>& __e) const \ 00152 { \ 00153 _Array_augmented_##name (_M_array, _Array<size_t>(_M_index), __e, \ 00154 _M_index.size()); \ 00155 } 00156 00157 _DEFINE_VALARRAY_OPERATOR(*, multiplies) 00158 _DEFINE_VALARRAY_OPERATOR(/, divides) 00159 _DEFINE_VALARRAY_OPERATOR(%, modulus) 00160 _DEFINE_VALARRAY_OPERATOR(+, plus) 00161 _DEFINE_VALARRAY_OPERATOR(-, minus) 00162 _DEFINE_VALARRAY_OPERATOR(^, xor) 00163 _DEFINE_VALARRAY_OPERATOR(&, and) 00164 _DEFINE_VALARRAY_OPERATOR(|, or) 00165 _DEFINE_VALARRAY_OPERATOR(<<, shift_left) 00166 _DEFINE_VALARRAY_OPERATOR(>>, shift_right) 00167 00168 #undef _DEFINE_VALARRAY_OPERATOR 00169 00170 } // std:: 00171 00172 #endif /* _CPP_BITS_GSLICE_ARRAY */ 00173 00174 // Local Variables: 00175 // mode:c++ 00176 // End:

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