170 lines
5.8 KiB
C++
170 lines
5.8 KiB
C++
// The template and inlines for the -*- C++ -*- gslice_array class.
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// Copyright (C) 1997-1999, 2000 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
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#ifndef _CPP_BITS_GSLICE_ARRAY
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#define _CPP_BITS_GSLICE_ARRAY 1
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namespace std {
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template<typename _Tp> class gslice_array
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{
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public:
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typedef _Tp value_type;
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void operator= (const valarray<_Tp>&) const;
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void operator*= (const valarray<_Tp>&) const;
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void operator/= (const valarray<_Tp>&) const;
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void operator%= (const valarray<_Tp>&) const;
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void operator+= (const valarray<_Tp>&) const;
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void operator-= (const valarray<_Tp>&) const;
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void operator^= (const valarray<_Tp>&) const;
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void operator&= (const valarray<_Tp>&) const;
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void operator|= (const valarray<_Tp>&) const;
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void operator<<=(const valarray<_Tp>&) const;
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void operator>>=(const valarray<_Tp>&) const;
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void operator=(const _Tp&);
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template<class _Dom>
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void operator= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator*= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator/= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator%= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator+= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator-= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator^= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator&= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator|= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator<<= (const _Expr<_Dom,_Tp>&) const;
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template<class _Dom>
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void operator>>= (const _Expr<_Dom,_Tp>&) const;
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private:
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_Array<_Tp> _M_array;
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const valarray<size_t>& _M_index;
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friend class valarray<_Tp>;
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gslice_array (_Array<_Tp>, const valarray<size_t>&);
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// this constructor needs to be implemented.
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gslice_array (const gslice_array&);
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// not implemented
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gslice_array();
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gslice_array& operator= (const gslice_array&);
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};
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template<typename _Tp>
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inline
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gslice_array<_Tp>::gslice_array (_Array<_Tp> __a,
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const valarray<size_t>& __i)
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: _M_array (__a), _M_index (__i) {}
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template<typename _Tp>
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inline
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gslice_array<_Tp>::gslice_array (const gslice_array<_Tp>& __a)
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: _M_array (__a._M_array), _M_index (__a._M_index) {}
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template<typename _Tp>
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inline void
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gslice_array<_Tp>::operator= (const _Tp& __t)
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{
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__valarray_fill (_M_array, _Array<size_t>(_M_index),
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_M_index.size(), __t);
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}
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template<typename _Tp>
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inline void
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gslice_array<_Tp>::operator= (const valarray<_Tp>& __v) const
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{
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__valarray_copy (_Array<_Tp> (__v), __v.size (),
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_M_array, _Array<size_t>(_M_index));
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}
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template<typename _Tp>
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template<class E>
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inline void
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gslice_array<_Tp>::operator= (const _Expr<E, _Tp>& __e) const
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{
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__valarray_copy (__e, _M_index.size(), _M_array,
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_Array<size_t>(_M_index));
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}
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#undef _DEFINE_VALARRAY_OPERATOR
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#define _DEFINE_VALARRAY_OPERATOR(op, name) \
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template<typename _Tp> \
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inline void \
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gslice_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \
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{ \
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_Array_augmented_##name (_M_array, _Array<size_t>(_M_index), \
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_Array<_Tp> (__v), __v.size ()); \
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} \
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\
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template<typename _Tp> template<class E> \
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inline void \
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gslice_array<_Tp>::operator op##= (const _Expr<E, _Tp>& __e) const \
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{ \
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_Array_augmented_##name (_M_array, _Array<size_t>(_M_index), __e, \
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_M_index.size()); \
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}
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_DEFINE_VALARRAY_OPERATOR(*, multiplies)
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_DEFINE_VALARRAY_OPERATOR(/, divides)
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_DEFINE_VALARRAY_OPERATOR(%, modulus)
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_DEFINE_VALARRAY_OPERATOR(+, plus)
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_DEFINE_VALARRAY_OPERATOR(-, minus)
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_DEFINE_VALARRAY_OPERATOR(^, xor)
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_DEFINE_VALARRAY_OPERATOR(&, and)
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_DEFINE_VALARRAY_OPERATOR(|, or)
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_DEFINE_VALARRAY_OPERATOR(<<, shift_left)
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_DEFINE_VALARRAY_OPERATOR(>>, shift_right)
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#undef _DEFINE_VALARRAY_OPERATOR
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} // std::
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#endif /* _CPP_BITS_GSLICE_ARRAY */
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// Local Variables:
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// mode:c++
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// End:
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