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Diffstat (limited to 'libstdc++/std/indirect_array.h')
| -rw-r--r-- | libstdc++/std/indirect_array.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/libstdc++/std/indirect_array.h b/libstdc++/std/indirect_array.h new file mode 100644 index 00000000000..bb5b79fb834 --- /dev/null +++ b/libstdc++/std/indirect_array.h @@ -0,0 +1,157 @@ +// 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: |