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Diffstat (limited to 'libstdc++/std/gslice_array.h')
| -rw-r--r-- | libstdc++/std/gslice_array.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/libstdc++/std/gslice_array.h b/libstdc++/std/gslice_array.h new file mode 100644 index 00000000000..8a67cac9050 --- /dev/null +++ b/libstdc++/std/gslice_array.h @@ -0,0 +1,170 @@ +// 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: |