1 // The template and inlines for the -*- C++ -*- indirect_array class.
3 // Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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)
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.
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,
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.
30 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
32 /** @file indirect_array.h
33 * This is an internal header file, included by other library headers.
34 * You should not attempt to use it directly.
37 #ifndef _CPP_BITS_INDIRECT_ARRAY_H
38 #define _CPP_BITS_INDIRECT_ARRAY_H 1
40 #pragma GCC system_header
48 typedef _Tp value_type;
50 // XXX: This is a proposed resolution for DR-253.
51 indirect_array& operator= (const indirect_array&);
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 valarray<_Tp>&) const;
63 void operator>>= (const valarray<_Tp>&) const;
64 void operator= (const _Tp&) const;
68 void operator= (const _Expr<_Dom, _Tp>&) const;
70 void operator*= (const _Expr<_Dom, _Tp>&) const;
72 void operator/= (const _Expr<_Dom, _Tp>&) const;
74 void operator%= (const _Expr<_Dom, _Tp>&) const;
76 void operator+= (const _Expr<_Dom, _Tp>&) const;
78 void operator-= (const _Expr<_Dom, _Tp>&) const;
80 void operator^= (const _Expr<_Dom, _Tp>&) const;
82 void operator&= (const _Expr<_Dom, _Tp>&) const;
84 void operator|= (const _Expr<_Dom, _Tp>&) const;
86 void operator<<= (const _Expr<_Dom, _Tp>&) const;
88 void operator>>= (const _Expr<_Dom, _Tp>&) const;
91 indirect_array (const indirect_array&);
92 indirect_array (_Array<_Tp>, size_t, _Array<size_t>);
94 friend class valarray<_Tp>;
95 friend class gslice_array<_Tp>;
98 const _Array<size_t> _M_index;
99 const _Array<_Tp> _M_array;
105 template<typename _Tp>
106 inline indirect_array<_Tp>::indirect_array(const indirect_array<_Tp>& __a)
107 : _M_sz (__a._M_sz), _M_index (__a._M_index),
108 _M_array (__a._M_array) {}
110 template<typename _Tp>
112 indirect_array<_Tp>::indirect_array (_Array<_Tp> __a, size_t __s,
114 : _M_sz (__s), _M_index (__i), _M_array (__a) {}
116 template<typename _Tp>
117 inline indirect_array<_Tp>&
118 indirect_array<_Tp>::operator=(const indirect_array<_Tp>& __a)
120 __valarray_copy(__a._M_array, _M_sz, __a._M_index, _M_array, _M_index);
125 template<typename _Tp>
127 indirect_array<_Tp>::operator= (const _Tp& __t) const
128 { __valarray_fill(_M_array, _M_index, _M_sz, __t); }
130 template<typename _Tp>
132 indirect_array<_Tp>::operator= (const valarray<_Tp>& __v) const
133 { __valarray_copy (_Array<_Tp> (__v), _M_sz, _M_array, _M_index); }
135 template<typename _Tp>
138 indirect_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const
139 { __valarray_copy (__e, _M_sz, _M_array, _M_index); }
141 #undef _DEFINE_VALARRAY_OPERATOR
142 #define _DEFINE_VALARRAY_OPERATOR(op, name) \
143 template<typename _Tp> \
145 indirect_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \
147 _Array_augmented_##name (_M_array, _M_index, _Array<_Tp> (__v), _M_sz); \
150 template<typename _Tp> template<class _Dom> \
152 indirect_array<_Tp>::operator op##= (const _Expr<_Dom,_Tp>& __e) const \
154 _Array_augmented_##name (_M_array, _M_index, __e, _M_sz); \
157 _DEFINE_VALARRAY_OPERATOR(*, multiplies)
158 _DEFINE_VALARRAY_OPERATOR(/, divides)
159 _DEFINE_VALARRAY_OPERATOR(%, modulus)
160 _DEFINE_VALARRAY_OPERATOR(+, plus)
161 _DEFINE_VALARRAY_OPERATOR(-, minus)
162 _DEFINE_VALARRAY_OPERATOR(^, xor)
163 _DEFINE_VALARRAY_OPERATOR(&, and)
164 _DEFINE_VALARRAY_OPERATOR(|, or)
165 _DEFINE_VALARRAY_OPERATOR(<<, shift_left)
166 _DEFINE_VALARRAY_OPERATOR(>>, shift_right)
168 #undef _DEFINE_VALARRAY_OPERATOR
172 #endif /* _CPP_BITS_INDIRECT_ARRAY_H */