mask_array.h

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00001 // The template and inlines for the -*- C++ -*- mask_array class. 00002 00003 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 00004 // Free Software Foundation, Inc. 00005 // 00006 // This file is part of the GNU ISO C++ Library. This library is free 00007 // software; you can redistribute it and/or modify it under the 00008 // terms of the GNU General Public License as published by the 00009 // Free Software Foundation; either version 2, or (at your option) 00010 // any later version. 00011 00012 // This library is distributed in the hope that it will be useful, 00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 // GNU General Public License for more details. 00016 00017 // You should have received a copy of the GNU General Public License along 00018 // with this library; see the file COPYING. If not, write to the Free 00019 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 00020 // USA. 00021 00022 // As a special exception, you may use this file as part of a free software 00023 // library without restriction. Specifically, if other files instantiate 00024 // templates or use macros or inline functions from this file, or you compile 00025 // this file and link it with other files to produce an executable, this 00026 // file does not by itself cause the resulting executable to be covered by 00027 // the GNU General Public License. This exception does not however 00028 // invalidate any other reasons why the executable file might be covered by 00029 // the GNU General Public License. 00030 00031 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr> 00032 00033 /** @file mask_array.h 00034 * This is an internal header file, included by other library headers. 00035 * You should not attempt to use it directly. 00036 */ 00037 00038 #ifndef _CPP_BITS_MASK_ARRAY_H 00039 #define _CPP_BITS_MASK_ARRAY_H 1 00040 00041 #pragma GCC system_header 00042 00043 namespace std { 00044 00045 template <class _Tp> 00046 class mask_array 00047 { 00048 public: 00049 typedef _Tp value_type; 00050 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 valarray<_Tp>&) const; 00061 void operator>>=(const valarray<_Tp>&) const; 00062 void operator=(const _Tp&) const; 00063 00064 // ~mask_array (); 00065 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 template<class _Dom> 00085 void operator<<=(const _Expr<_Dom,_Tp>&) const; 00086 template<class _Dom> 00087 void operator>>=(const _Expr<_Dom,_Tp>&) const; 00088 00089 private: 00090 mask_array(_Array<_Tp>, size_t, _Array<bool>); 00091 friend class valarray<_Tp>; 00092 00093 const size_t _M_sz; 00094 const _Array<bool> _M_mask; 00095 const _Array<_Tp> _M_array; 00096 00097 mask_array (const mask_array&); 00098 00099 // not implemented 00100 mask_array(); 00101 mask_array& operator=(const mask_array&); 00102 }; 00103 00104 00105 template<typename _Tp> 00106 inline mask_array<_Tp>::mask_array(const mask_array<_Tp>& a) 00107 : _M_sz(a._M_sz), _M_mask(a._M_mask), _M_array(a._M_array) {} 00108 00109 template<typename _Tp> 00110 inline 00111 mask_array<_Tp>::mask_array(_Array<_Tp> __a, size_t __s, _Array<bool> __m) 00112 : _M_sz(__s), _M_mask(__m), _M_array(__a) {} 00113 00114 template<typename _Tp> 00115 inline void 00116 mask_array<_Tp>::operator=(const _Tp& __t) const 00117 { __valarray_fill(_M_array, _M_sz, _M_mask, __t); } 00118 00119 template<typename _Tp> 00120 inline void 00121 mask_array<_Tp>::operator=(const valarray<_Tp>& __v) const 00122 { __valarray_copy(_Array<_Tp>(__v), __v.size(), _M_array, _M_mask); } 00123 00124 template<typename _Tp> 00125 template<class _Ex> 00126 inline void 00127 mask_array<_Tp>::operator=(const _Expr<_Ex, _Tp>& __e) const 00128 { __valarray_copy(__e, __e.size(), _M_array, _M_mask); } 00129 00130 #undef _DEFINE_VALARRAY_OPERATOR 00131 #define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \ 00132 template<typename _Tp> \ 00133 inline void \ 00134 mask_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \ 00135 { \ 00136 _Array_augmented_##_Name(_M_array, _M_mask, \ 00137 _Array<_Tp>(__v), __v.size()); \ 00138 } \ 00139 \ 00140 template<typename _Tp> \ 00141 template<class _Dom> \ 00142 inline void \ 00143 mask_array<_Tp>::operator _Op##=(const _Expr<_Dom, _Tp>& __e) const\ 00144 { \ 00145 _Array_augmented_##_Name(_M_array, _M_mask, __e, __e.size()); \ 00146 } 00147 00148 _DEFINE_VALARRAY_OPERATOR(*, __multiplies) 00149 _DEFINE_VALARRAY_OPERATOR(/, __divides) 00150 _DEFINE_VALARRAY_OPERATOR(%, __modulus) 00151 _DEFINE_VALARRAY_OPERATOR(+, __plus) 00152 _DEFINE_VALARRAY_OPERATOR(-, __minus) 00153 _DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor) 00154 _DEFINE_VALARRAY_OPERATOR(&, __bitwise_and) 00155 _DEFINE_VALARRAY_OPERATOR(|, __bitwise_or) 00156 _DEFINE_VALARRAY_OPERATOR(<<, __shift_left) 00157 _DEFINE_VALARRAY_OPERATOR(>>, __shift_right) 00158 00159 #undef _DEFINE_VALARRAY_OPERATOR 00160 00161 } // std:: 00162 00163 #endif /* _CPP_BITS_MASK_ARRAY_H */ 00164 00165 // Local Variables: 00166 // mode:c++ 00167 // End:

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