1 // The template and inlines for the -*- C++ -*- mask_array class.
3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
4 // Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 2, or (at your option)
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING. If not, write to the Free
19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
22 // As a special exception, you may use this file as part of a free software
23 // library without restriction. Specifically, if other files instantiate
24 // templates or use macros or inline functions from this file, or you compile
25 // this file and link it with other files to produce an executable, this
26 // file does not by itself cause the resulting executable to be covered by
27 // the GNU General Public License. This exception does not however
28 // invalidate any other reasons why the executable file might be covered by
29 // the GNU General Public License.
31 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
33 /** @file mask_array.h
34 * This is an internal header file, included by other library headers.
35 * You should not attempt to use it directly.
39 #define _MASK_ARRAY_H 1
41 #pragma GCC system_header
49 typedef _Tp value_type;
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 valarray<_Tp>&) const;
61 void operator>>=(const valarray<_Tp>&) const;
62 void operator=(const _Tp&) const;
67 void operator=(const _Expr<_Dom,_Tp>&) const;
69 void operator*=(const _Expr<_Dom,_Tp>&) const;
71 void operator/=(const _Expr<_Dom,_Tp>&) const;
73 void operator%=(const _Expr<_Dom,_Tp>&) const;
75 void operator+=(const _Expr<_Dom,_Tp>&) const;
77 void operator-=(const _Expr<_Dom,_Tp>&) const;
79 void operator^=(const _Expr<_Dom,_Tp>&) const;
81 void operator&=(const _Expr<_Dom,_Tp>&) const;
83 void operator|=(const _Expr<_Dom,_Tp>&) const;
85 void operator<<=(const _Expr<_Dom,_Tp>&) const;
87 void operator>>=(const _Expr<_Dom,_Tp>&) const;
90 mask_array(_Array<_Tp>, size_t, _Array<bool>);
91 friend class valarray<_Tp>;
94 const _Array<bool> _M_mask;
95 const _Array<_Tp> _M_array;
97 mask_array (const mask_array&);
101 mask_array& operator=(const mask_array&);
105 template<typename _Tp>
106 inline mask_array<_Tp>::mask_array(const mask_array<_Tp>& a)
107 : _M_sz(a._M_sz), _M_mask(a._M_mask), _M_array(a._M_array) {}
109 template<typename _Tp>
111 mask_array<_Tp>::mask_array(_Array<_Tp> __a, size_t __s, _Array<bool> __m)
112 : _M_sz(__s), _M_mask(__m), _M_array(__a) {}
114 template<typename _Tp>
116 mask_array<_Tp>::operator=(const _Tp& __t) const
117 { std::__valarray_fill(_M_array, _M_sz, _M_mask, __t); }
119 template<typename _Tp>
121 mask_array<_Tp>::operator=(const valarray<_Tp>& __v) const
122 { std::__valarray_copy(_Array<_Tp>(__v), __v.size(), _M_array, _M_mask); }
124 template<typename _Tp>
127 mask_array<_Tp>::operator=(const _Expr<_Ex, _Tp>& __e) const
128 { std::__valarray_copy(__e, __e.size(), _M_array, _M_mask); }
130 #undef _DEFINE_VALARRAY_OPERATOR
131 #define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \
132 template<typename _Tp> \
134 mask_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \
136 _Array_augmented_##_Name(_M_array, _M_mask, \
137 _Array<_Tp>(__v), __v.size()); \
140 template<typename _Tp> \
141 template<class _Dom> \
143 mask_array<_Tp>::operator _Op##=(const _Expr<_Dom, _Tp>& __e) const\
145 _Array_augmented_##_Name(_M_array, _M_mask, __e, __e.size()); \
148 _DEFINE_VALARRAY_OPERATOR(*, __multiplies)
149 _DEFINE_VALARRAY_OPERATOR(/, __divides)
150 _DEFINE_VALARRAY_OPERATOR(%, __modulus)
151 _DEFINE_VALARRAY_OPERATOR(+, __plus)
152 _DEFINE_VALARRAY_OPERATOR(-, __minus)
153 _DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor)
154 _DEFINE_VALARRAY_OPERATOR(&, __bitwise_and)
155 _DEFINE_VALARRAY_OPERATOR(|, __bitwise_or)
156 _DEFINE_VALARRAY_OPERATOR(<<, __shift_left)
157 _DEFINE_VALARRAY_OPERATOR(>>, __shift_right)
159 #undef _DEFINE_VALARRAY_OPERATOR
163 #endif /* _MASK_ARRAY_H */