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// The template and inlines for the -*- C++ -*- indirect_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 __INDIRECT_ARRAY__
#define __INDIRECT_ARRAY__
extern "C++" {
template <class _Tp> class indirect_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:
indirect_array (const indirect_array&);
indirect_array (_Array<_Tp>, size_t, _Array<size_t>);
friend class valarray<_Tp>;
friend class gslice_array<_Tp>;
const size_t _M_sz;
const _Array<size_t> _M_index;
const _Array<_Tp> _M_array;
// not implemented
indirect_array ();
indirect_array& operator= (const indirect_array&);
};
template<typename _Tp>
inline indirect_array<_Tp>::indirect_array(const indirect_array<_Tp>& __a)
: _M_sz (__a._M_sz), _M_index (__a._M_index),
_M_array (__a._M_array) {}
template<typename _Tp>
inline
indirect_array<_Tp>::indirect_array (_Array<_Tp> __a, size_t __s,
_Array<size_t> __i)
: _M_sz (__s), _M_index (__i), _M_array (__a) {}
template<typename _Tp>
inline void
indirect_array<_Tp>::operator= (const _Tp& __t)
{ __valarray_fill(_M_array, _M_index, _M_sz, __t); }
template<typename _Tp>
inline void
indirect_array<_Tp>::operator= (const valarray<_Tp>& __v) const
{ __valarray_copy (_Array<_Tp> (__v), _M_sz, _M_array, _M_index); }
template<typename _Tp>
template<class _Dom>
inline void
indirect_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const
{ __valarray_copy (__e, _M_sz, _M_array, _M_index); }
#undef _DEFINE_VALARRAY_OPERATOR
#define _DEFINE_VALARRAY_OPERATOR(op, name) \
template<typename _Tp> \
inline void \
indirect_array<_Tp>::operator##op##= (const valarray<_Tp>& __v) const \
{ \
_Array_augmented_##name (_M_array, _M_index, _Array<_Tp> (__v), _M_sz); \
} \
\
template<typename _Tp> template<class _Dom> \
inline void \
indirect_array<_Tp>::operator##op##= (const _Expr<_Dom,_Tp>& __e) const \
{ \
_Array_augmented_##name (_M_array, _M_index, __e, _M_sz); \
}
_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 // __INDIRECT_ARRAY__
// Local Variables:
// mode:c++
// End:
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