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- // The template and inlines for the -*- C++ -*- gslice_array class.
-
- // Copyright (C) 1997-1999 Cygnus Solutions
- //
- // This file is part of the GNU ISO C++ Library. This library is free
- // software; you can redistribute it and/or modify it under the
- // terms of the GNU General Public License as published by the
- // Free Software Foundation; either version 2, or (at your option)
- // any later version.
-
- // This library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
-
- // You should have received a copy of the GNU General Public License along
- // with this library; see the file COPYING. If not, write to the Free
- // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- // USA.
-
- // As a special exception, you may use this file as part of a free software
- // library without restriction. Specifically, if other files instantiate
- // templates or use macros or inline functions from this file, or you compile
- // this file and link it with other files to produce an executable, this
- // file does not by itself cause the resulting executable to be covered by
- // the GNU General Public License. This exception does not however
- // invalidate any other reasons why the executable file might be covered by
- // the GNU General Public License.
-
- // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
-
- #ifndef __GSLICE_ARRAY__
- #define __GSLICE_ARRAY__
-
- extern "C++" {
-
- template<typename _Tp> class gslice_array
- {
- public:
- typedef _Tp value_type;
-
- void operator= (const valarray<_Tp>&) const;
- void operator*= (const valarray<_Tp>&) const;
- void operator/= (const valarray<_Tp>&) const;
- void operator%= (const valarray<_Tp>&) const;
- void operator+= (const valarray<_Tp>&) const;
- void operator-= (const valarray<_Tp>&) const;
- void operator^= (const valarray<_Tp>&) const;
- void operator&= (const valarray<_Tp>&) const;
- void operator|= (const valarray<_Tp>&) const;
- void operator<<=(const valarray<_Tp>&) const;
- void operator>>=(const valarray<_Tp>&) const;
- void operator=(const _Tp&);
-
- template<class _Dom>
- void operator= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator*= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator/= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator%= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator+= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator-= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator^= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator&= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator|= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator<<= (const _Expr<_Dom,_Tp>&) const;
- template<class _Dom>
- void operator>>= (const _Expr<_Dom,_Tp>&) const;
-
- private:
- _Array<_Tp> _M_array;
- const valarray<size_t>& _M_index;
-
- friend class valarray<_Tp>;
-
- gslice_array (_Array<_Tp>, const valarray<size_t>&);
-
- // this constructor needs to be implemented.
- gslice_array (const gslice_array&);
-
- // not implemented
- gslice_array();
- gslice_array& operator= (const gslice_array&);
- };
-
- template<typename _Tp>
- inline
- gslice_array<_Tp>::gslice_array (_Array<_Tp> __a,
- const valarray<size_t>& __i)
- : _M_array (__a), _M_index (__i) {}
-
-
- template<typename _Tp>
- inline
- gslice_array<_Tp>::gslice_array (const gslice_array<_Tp>& __a)
- : _M_array (__a._M_array), _M_index (__a._M_index) {}
-
-
- template<typename _Tp>
- inline void
- gslice_array<_Tp>::operator= (const _Tp& __t)
- {
- __valarray_fill (_M_array, _Array<size_t>(_M_index),
- _M_index.size(), __t);
- }
-
- template<typename _Tp>
- inline void
- gslice_array<_Tp>::operator= (const valarray<_Tp>& __v) const
- {
- __valarray_copy (_Array<_Tp> (__v), __v.size (),
- _M_array, _Array<size_t>(_M_index));
- }
-
- template<typename _Tp>
- template<class E>
- inline void
- gslice_array<_Tp>::operator= (const _Expr<E, _Tp>& __e) const
- {
- __valarray_copy (__e, _M_index.size(), _M_array,
- _Array<size_t>(_M_index));
- }
-
- #undef _DEFINE_VALARRAY_OPERATOR
- #define _DEFINE_VALARRAY_OPERATOR(op, name) \
- template<typename _Tp> \
- inline void \
- gslice_array<_Tp>::operator##op##= (const valarray<_Tp>& __v) const \
- { \
- _Array_augmented_##name (_M_array, _Array<size_t>(_M_index), \
- _Array<_Tp> (__v), __v.size ()); \
- } \
- \
- template<typename _Tp> template<class E> \
- inline void \
- gslice_array<_Tp>::operator##op##= (const _Expr<E, _Tp>& __e) const \
- { \
- _Array_augmented_##name (_M_array, _Array<size_t>(_M_index), __e, \
- _M_index.size()); \
- }
-
- _DEFINE_VALARRAY_OPERATOR(*, multiplies)
- _DEFINE_VALARRAY_OPERATOR(/, divides)
- _DEFINE_VALARRAY_OPERATOR(%, modulus)
- _DEFINE_VALARRAY_OPERATOR(+, plus)
- _DEFINE_VALARRAY_OPERATOR(-, minus)
- _DEFINE_VALARRAY_OPERATOR(^, xor)
- _DEFINE_VALARRAY_OPERATOR(&, and)
- _DEFINE_VALARRAY_OPERATOR(|, or)
- _DEFINE_VALARRAY_OPERATOR(<<, shift_left)
- _DEFINE_VALARRAY_OPERATOR(>>, shift_right)
-
- #undef _DEFINE_VALARRAY_OPERATOR
-
- } // extern "C++"
-
-
- #endif // __GSLICE_ARRAY__
-
- // Local Variables:
- // mode:c++
- // End:
-