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Diffstat (limited to 'libstdc++/std/slice_array.h')
| -rw-r--r-- | libstdc++/std/slice_array.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/libstdc++/std/slice_array.h b/libstdc++/std/slice_array.h new file mode 100644 index 00000000000..dc1aa34d355 --- /dev/null +++ b/libstdc++/std/slice_array.h @@ -0,0 +1,156 @@ +// The template and inlines for the -*- C++ -*- slice_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 __SLICE_ARRAY__ +#define __SLICE_ARRAY__ + +extern "C++" { + +template<typename _T> +class slice_array +{ +public: + typedef _T value_type; + + void operator= (const valarray<_T>&) const; + void operator*= (const valarray<_T>&) const; + void operator/= (const valarray<_T>&) const; + void operator%= (const valarray<_T>&) const; + void operator+= (const valarray<_T>&) const; + void operator-= (const valarray<_T>&) const; + void operator^= (const valarray<_T>&) const; + void operator&= (const valarray<_T>&) const; + void operator|= (const valarray<_T>&) const; + void operator<<= (const valarray<_T>&) const; + void operator>>= (const valarray<_T>&) const; + void operator= (const _T &); + + template<class _Dom> + void operator= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator*= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator/= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator%= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator+= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator-= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator^= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator&= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator|= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator<<= (const _Expr<_Dom,_T>&) const; + template<class _Dom> + void operator>>= (const _Expr<_Dom,_T>&) const; + +private: + friend class valarray<_T>; + slice_array(_Array<_T>, const slice&); + + const size_t _M_sz; + const size_t _M_stride; + const _Array<_T> _M_array; + + // this constructor is implemented since we need to return a value. + slice_array (const slice_array&); + + // not implemented + slice_array (); + slice_array& operator= (const slice_array&); +}; + +template<typename _T> +inline slice_array<_T>::slice_array (_Array<_T> __a, const slice& __s) + : _M_sz (__s.size ()), _M_stride (__s.stride ()), + _M_array (__a.begin () + __s.start ()) {} + +template<typename _Tp> +inline slice_array<_Tp>::slice_array(const slice_array<_Tp>& a) + : _M_sz(a._M_sz), _M_stride(a._M_stride), _M_array(a._M_array) {} + +template<typename _T> +inline void +slice_array<_T>::operator= (const _T& __t) +{ __valarray_fill (_M_array, _M_sz, _M_stride, __t); } + +template<typename _T> +inline void +slice_array<_T>::operator= (const valarray<_T>& __v) const +{ __valarray_copy (_Array<_T> (__v), _M_array, _M_sz, _M_stride); } + +template<typename _T> +template<class _Dom> +inline void +slice_array<_T>::operator= (const _Expr<_Dom,_T>& __e) const +{ __valarray_copy (__e, _M_sz, _M_array, _M_stride); } + +#undef _DEFINE_VALARRAY_OPERATOR +#define _DEFINE_VALARRAY_OPERATOR(op, name) \ +template<typename _T> \ +inline void \ +slice_array<_T>::operator##op##= (const valarray<_T>& __v) const \ +{ \ + _Array_augmented_##name (_M_array, _M_sz, _M_stride, _Array<_T> (__v));\ +} \ + \ +template<typename _T> template<class _Dom> \ +inline void \ +slice_array<_T>::operator##op##= (const _Expr<_Dom,_T>& __e) const \ +{ \ + _Array_augmented_##name (_M_array, _M_stride, __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 // __SLICE_ARRAY__ + +// Local Variables: +// mode:c++ +// End: |