157 lines
5.2 KiB
C++
157 lines
5.2 KiB
C++
// The template and inlines for the -*- C++ -*- slice_array class.
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// Copyright (C) 1997-1999 Cygnus Solutions
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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 __SLICE_ARRAY__
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#define __SLICE_ARRAY__
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extern "C++" {
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template<typename _T>
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class slice_array
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{
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public:
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typedef _T value_type;
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void operator= (const valarray<_T>&) const;
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void operator*= (const valarray<_T>&) const;
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void operator/= (const valarray<_T>&) const;
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void operator%= (const valarray<_T>&) const;
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void operator+= (const valarray<_T>&) const;
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void operator-= (const valarray<_T>&) const;
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void operator^= (const valarray<_T>&) const;
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void operator&= (const valarray<_T>&) const;
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void operator|= (const valarray<_T>&) const;
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void operator<<= (const valarray<_T>&) const;
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void operator>>= (const valarray<_T>&) const;
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void operator= (const _T &);
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template<class _Dom>
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void operator= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator*= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator/= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator%= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator+= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator-= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator^= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator&= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator|= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator<<= (const _Expr<_Dom,_T>&) const;
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template<class _Dom>
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void operator>>= (const _Expr<_Dom,_T>&) const;
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private:
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friend class valarray<_T>;
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slice_array(_Array<_T>, const slice&);
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const size_t _M_sz;
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const size_t _M_stride;
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const _Array<_T> _M_array;
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// this constructor is implemented since we need to return a value.
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slice_array (const slice_array&);
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// not implemented
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slice_array ();
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slice_array& operator= (const slice_array&);
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};
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template<typename _T>
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inline slice_array<_T>::slice_array (_Array<_T> __a, const slice& __s)
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: _M_sz (__s.size ()), _M_stride (__s.stride ()),
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_M_array (__a.begin () + __s.start ()) {}
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template<typename _Tp>
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inline slice_array<_Tp>::slice_array(const slice_array<_Tp>& a)
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: _M_sz(a._M_sz), _M_stride(a._M_stride), _M_array(a._M_array) {}
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template<typename _T>
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inline void
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slice_array<_T>::operator= (const _T& __t)
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{ __valarray_fill (_M_array, _M_sz, _M_stride, __t); }
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template<typename _T>
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inline void
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slice_array<_T>::operator= (const valarray<_T>& __v) const
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{ __valarray_copy (_Array<_T> (__v), _M_array, _M_sz, _M_stride); }
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template<typename _T>
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template<class _Dom>
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inline void
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slice_array<_T>::operator= (const _Expr<_Dom,_T>& __e) const
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{ __valarray_copy (__e, _M_sz, _M_array, _M_stride); }
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#undef _DEFINE_VALARRAY_OPERATOR
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#define _DEFINE_VALARRAY_OPERATOR(op, name) \
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template<typename _T> \
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inline void \
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slice_array<_T>::operator##op##= (const valarray<_T>& __v) const \
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{ \
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_Array_augmented_##name (_M_array, _M_sz, _M_stride, _Array<_T> (__v));\
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} \
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\
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template<typename _T> template<class _Dom> \
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inline void \
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slice_array<_T>::operator##op##= (const _Expr<_Dom,_T>& __e) const \
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{ \
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_Array_augmented_##name (_M_array, _M_stride, __e, _M_sz); \
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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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} // extern "C++"
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#endif // __SLICE_ARRAY__
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// Local Variables:
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// mode:c++
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// End:
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