1 // The template and inlines for the -*- C++ -*- mask_array class.
3 // Copyright (C) 1997-2001 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 mask_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_MASK_ARRAY_H
38 #define _CPP_BITS_MASK_ARRAY_H 1
40 #pragma GCC system_header
44 template <class _Tp
> class mask_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
&);
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;
85 void operator>>=(const _Expr
<_Dom
,_Tp
>&) const;
88 mask_array (_Array
<_Tp
>, size_t, _Array
<bool>);
89 friend class valarray
<_Tp
>;
92 const _Array
<bool> _M_mask
;
93 const _Array
<_Tp
> _M_array
;
95 mask_array (const mask_array
&);
99 mask_array
& operator= (const mask_array
&);
103 template<typename _Tp
>
104 inline mask_array
<_Tp
>::mask_array (const mask_array
<_Tp
>& a
)
105 : _M_sz (a
._M_sz
), _M_mask (a
._M_mask
), _M_array (a
._M_array
) {}
107 template<typename _Tp
>
109 mask_array
<_Tp
>::mask_array (_Array
<_Tp
> __a
, size_t __s
, _Array
<bool> __m
)
110 : _M_sz (__s
), _M_mask (__m
), _M_array (__a
) {}
112 // template<typename _Tp>
113 // inline mask_array<_Tp>::~mask_array () {}
115 template<typename _Tp
>
117 mask_array
<_Tp
>::operator= (const _Tp
& __t
)
118 { __valarray_fill (_M_array
, _M_sz
, _M_mask
, __t
); }
120 template<typename _Tp
>
122 mask_array
<_Tp
>::operator= (const valarray
<_Tp
>& __v
) const
123 { __valarray_copy (_Array
<_Tp
> (__v
), __v
.size (), _M_array
, _M_mask
); }
125 template<typename _Tp
>
128 mask_array
<_Tp
>::operator= (const _Expr
<E
, _Tp
>& __e
) const
129 { __valarray_copy (__e
, __e
.size (), _M_array
, _M_mask
); }
131 #undef _DEFINE_VALARRAY_OPERATOR
132 #define _DEFINE_VALARRAY_OPERATOR(op, name) \
133 template<typename _Tp> \
135 mask_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \
137 _Array_augmented_##name (_M_array, _M_mask, \
138 _Array<_Tp> (__v), __v.size ()); \
141 template<typename _Tp> template<class E> \
143 mask_array<_Tp>::operator op##= (const _Expr<E, _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(^, xor)
154 _DEFINE_VALARRAY_OPERATOR(&, and)
155 _DEFINE_VALARRAY_OPERATOR(|, or)
156 _DEFINE_VALARRAY_OPERATOR(<<, shift_left
)
157 _DEFINE_VALARRAY_OPERATOR(>>, shift_right
)
159 #undef _DEFINE_VALARRAY_OPERATOR
163 #endif /* _CPP_BITS_MASK_ARRAY_H */