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 _CPP_BITS_GSLICE_ARRAY
38 #define _CPP_BITS_GSLICE_ARRAY 1
40 #pragma GCC system_header
44 template<typename _Tp
> class gslice_array
47 typedef _Tp value_type
;
49 void operator= (const valarray
<_Tp
>&) const;
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 _Tp
&);
63 void operator= (const _Expr
<_Dom
,_Tp
>&) const;
65 void operator*= (const _Expr
<_Dom
,_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;
87 const valarray
<size_t>& _M_index
;
89 friend class valarray
<_Tp
>;
91 gslice_array (_Array
<_Tp
>, const valarray
<size_t>&);
93 // this constructor needs to be implemented.
94 gslice_array (const gslice_array
&);
98 gslice_array
& operator= (const gslice_array
&);
101 template<typename _Tp
>
103 gslice_array
<_Tp
>::gslice_array (_Array
<_Tp
> __a
,
104 const valarray
<size_t>& __i
)
105 : _M_array (__a
), _M_index (__i
) {}
108 template<typename _Tp
>
110 gslice_array
<_Tp
>::gslice_array (const gslice_array
<_Tp
>& __a
)
111 : _M_array (__a
._M_array
), _M_index (__a
._M_index
) {}
114 template<typename _Tp
>
116 gslice_array
<_Tp
>::operator= (const _Tp
& __t
)
118 __valarray_fill (_M_array
, _Array
<size_t>(_M_index
),
119 _M_index
.size(), __t
);
122 template<typename _Tp
>
124 gslice_array
<_Tp
>::operator= (const valarray
<_Tp
>& __v
) const
126 __valarray_copy (_Array
<_Tp
> (__v
), __v
.size (),
127 _M_array
, _Array
<size_t>(_M_index
));
130 template<typename _Tp
>
133 gslice_array
<_Tp
>::operator= (const _Expr
<E
, _Tp
>& __e
) const
135 __valarray_copy (__e
, _M_index
.size(), _M_array
,
136 _Array
<size_t>(_M_index
));
139 #undef _DEFINE_VALARRAY_OPERATOR
140 #define _DEFINE_VALARRAY_OPERATOR(op, name) \
141 template<typename _Tp> \
143 gslice_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \
145 _Array_augmented_##name (_M_array, _Array<size_t>(_M_index), \
146 _Array<_Tp> (__v), __v.size ()); \
149 template<typename _Tp> template<class E> \
151 gslice_array<_Tp>::operator op##= (const _Expr<E, _Tp>& __e) const \
153 _Array_augmented_##name (_M_array, _Array<size_t>(_M_index), __e, \
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_GSLICE_ARRAY */