1 // The template and inlines for the -*- C++ -*- gslice_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 gslice_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 _GSLICE_ARRAY_H
38 #define _GSLICE_ARRAY_H 1
40 #pragma GCC system_header
44 template<typename _Tp>
48 typedef _Tp value_type;
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 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 _Tp&) const;
64 void operator=(const _Expr<_Dom,_Tp>&) const;
66 void operator*=(const _Expr<_Dom,_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;
88 const valarray<size_t>& _M_index;
90 friend class valarray<_Tp>;
92 gslice_array(_Array<_Tp>, const valarray<size_t>&);
94 // this constructor needs to be implemented.
95 gslice_array(const gslice_array&);
99 gslice_array& operator= (const gslice_array&);
102 template<typename _Tp>
104 gslice_array<_Tp>::gslice_array(_Array<_Tp> __a,
105 const valarray<size_t>& __i)
106 : _M_array(__a), _M_index(__i) {}
109 template<typename _Tp>
111 gslice_array<_Tp>::gslice_array(const gslice_array<_Tp>& __a)
112 : _M_array(__a._M_array), _M_index(__a._M_index) {}
115 template<typename _Tp>
117 gslice_array<_Tp>::operator=(const _Tp& __t) const
119 std::__valarray_fill(_M_array, _Array<size_t>(_M_index),
120 _M_index.size(), __t);
123 template<typename _Tp>
125 gslice_array<_Tp>::operator=(const valarray<_Tp>& __v) const
127 std::__valarray_copy(_Array<_Tp>(__v), __v.size(),
128 _M_array, _Array<size_t>(_M_index));
131 template<typename _Tp>
134 gslice_array<_Tp>::operator=(const _Expr<_Dom, _Tp>& __e) const
136 std::__valarray_copy (__e, _M_index.size(), _M_array,
137 _Array<size_t>(_M_index));
140 #undef _DEFINE_VALARRAY_OPERATOR
141 #define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \
142 template<typename _Tp> \
144 gslice_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \
146 _Array_augmented_##_Name(_M_array, _Array<size_t>(_M_index), \
147 _Array<_Tp>(__v), __v.size()); \
150 template<typename _Tp> \
151 template<class _Dom> \
153 gslice_array<_Tp>::operator _Op##= (const _Expr<_Dom, _Tp>& __e) const\
155 _Array_augmented_##_Name(_M_array, _Array<size_t>(_M_index), __e,\
159 _DEFINE_VALARRAY_OPERATOR(*, __multiplies)
160 _DEFINE_VALARRAY_OPERATOR(/, __divides)
161 _DEFINE_VALARRAY_OPERATOR(%, __modulus)
162 _DEFINE_VALARRAY_OPERATOR(+, __plus)
163 _DEFINE_VALARRAY_OPERATOR(-, __minus)
164 _DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor)
165 _DEFINE_VALARRAY_OPERATOR(&, __bitwise_and)
166 _DEFINE_VALARRAY_OPERATOR(|, __bitwise_or)
167 _DEFINE_VALARRAY_OPERATOR(<<, __shift_left)
168 _DEFINE_VALARRAY_OPERATOR(>>, __shift_right)
170 #undef _DEFINE_VALARRAY_OPERATOR
174 #endif /* _GSLICE_ARRAY_H */