1 // The template and inlines for the -*- C++ -*- slice_array class.
3 // Copyright (C) 1997-1999 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 #ifndef _CPP_BITS_SLICE_ARRAY_H
33 #define _CPP_BITS_SLICE_ARRAY_H 1
37 template<typename _Tp>
41 typedef _Tp value_type;
43 void operator= (const valarray<_Tp>&) const;
44 void operator*= (const valarray<_Tp>&) const;
45 void operator/= (const valarray<_Tp>&) const;
46 void operator%= (const valarray<_Tp>&) const;
47 void operator+= (const valarray<_Tp>&) const;
48 void operator-= (const valarray<_Tp>&) const;
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 _Tp &);
58 void operator= (const _Expr<_Dom,_Tp>&) const;
60 void operator*= (const _Expr<_Dom,_Tp>&) const;
62 void operator/= (const _Expr<_Dom,_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;
81 friend class valarray<_Tp>;
82 slice_array(_Array<_Tp>, const slice&);
85 const size_t _M_stride;
86 const _Array<_Tp> _M_array;
88 // this constructor is implemented since we need to return a value.
89 slice_array (const slice_array&);
93 slice_array& operator= (const slice_array&);
96 template<typename _Tp>
97 inline slice_array<_Tp>::slice_array (_Array<_Tp> __a, const slice& __s)
98 : _M_sz (__s.size ()), _M_stride (__s.stride ()),
99 _M_array (__a.begin () + __s.start ()) {}
102 template<typename _Tp>
103 inline slice_array<_Tp>::slice_array(const slice_array<_Tp>& a)
104 : _M_sz(a._M_sz), _M_stride(a._M_stride), _M_array(a._M_array) {}
106 // template<typename _Tp>
107 // inline slice_array<_Tp>::~slice_array () {}
109 template<typename _Tp>
111 slice_array<_Tp>::operator= (const _Tp& __t)
112 { __valarray_fill (_M_array, _M_sz, _M_stride, __t); }
114 template<typename _Tp>
116 slice_array<_Tp>::operator= (const valarray<_Tp>& __v) const
117 { __valarray_copy (_Array<_Tp> (__v), _M_array, _M_sz, _M_stride); }
119 template<typename _Tp>
122 slice_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const
123 { __valarray_copy (__e, _M_sz, _M_array, _M_stride); }
125 #undef _DEFINE_VALARRAY_OPERATOR
126 #define _DEFINE_VALARRAY_OPERATOR(op, name) \
127 template<typename _Tp> \
129 slice_array<_Tp>::operator##op##= (const valarray<_Tp>& __v) const \
131 _Array_augmented_##name (_M_array, _M_sz, _M_stride, _Array<_Tp> (__v));\
134 template<typename _Tp> template<class _Dom> \
136 slice_array<_Tp>::operator##op##= (const _Expr<_Dom,_Tp>& __e) const \
138 _Array_augmented_##name (_M_array, _M_stride, __e, _M_sz); \
142 _DEFINE_VALARRAY_OPERATOR(*, multiplies)
143 _DEFINE_VALARRAY_OPERATOR(/, divides)
144 _DEFINE_VALARRAY_OPERATOR(%, modulus)
145 _DEFINE_VALARRAY_OPERATOR(+, plus)
146 _DEFINE_VALARRAY_OPERATOR(-, minus)
147 _DEFINE_VALARRAY_OPERATOR(^, xor)
148 _DEFINE_VALARRAY_OPERATOR(&, and)
149 _DEFINE_VALARRAY_OPERATOR(|, or)
150 _DEFINE_VALARRAY_OPERATOR(<<, shift_left)
151 _DEFINE_VALARRAY_OPERATOR(>>, shift_right)
153 #undef _DEFINE_VALARRAY_OPERATOR
157 #endif /* _CPP_BITS_SLICE_ARRAY_H */