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			165 lines
		
	
	
		
			5.8 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			165 lines
		
	
	
		
			5.8 KiB
		
	
	
	
		
			C++
		
	
	
	
| // The template and inlines for the -*- C++ -*- slice_array class.
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| 
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| // Copyright (C) 1997-1999, 2000, 2001 Free Software Foundation, Inc.
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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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| 
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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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| 
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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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| 
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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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| 
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| // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
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| 
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| #ifndef _CPP_BITS_SLICE_ARRAY_H
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| #define _CPP_BITS_SLICE_ARRAY_H 1
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| 
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| #pragma GCC system_header
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| 
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| namespace std
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| {
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|     
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|     template<typename _Tp>
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|     class slice_array
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|     {
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|     public:
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|         typedef _Tp value_type;
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|         
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|         void operator=   (const valarray<_Tp>&) const;
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|         void operator*=  (const valarray<_Tp>&) const;
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|         void operator/=  (const valarray<_Tp>&) const;
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|         void operator%=  (const valarray<_Tp>&) const;
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|         void operator+=  (const valarray<_Tp>&) const;
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|         void operator-=  (const valarray<_Tp>&) const;
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|         void operator^=  (const valarray<_Tp>&) const;
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|         void operator&=  (const valarray<_Tp>&) const;
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|         void operator|=  (const valarray<_Tp>&) const;
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|         void operator<<= (const valarray<_Tp>&) const;
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|         void operator>>= (const valarray<_Tp>&) const;
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|         void operator= (const _Tp &);
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|         //        ~slice_array ();
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|         
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|         template<class _Dom>
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|         void operator=   (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator*=  (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator/=  (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator%=  (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator+=  (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator-=  (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator^=  (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator&=  (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator|=  (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator<<= (const _Expr<_Dom,_Tp>&) const;
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|         template<class _Dom>
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|         void operator>>= (const _Expr<_Dom,_Tp>&) const;
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|         
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|     private:
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|         friend class valarray<_Tp>;
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|         slice_array(_Array<_Tp>, const slice&);
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|         
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|         const size_t     _M_sz;
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|         const size_t     _M_stride;
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|         const _Array<_Tp> _M_array;
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|         
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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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| 
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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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| 
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|     template<typename _Tp>
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|     inline slice_array<_Tp>::slice_array (_Array<_Tp> __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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| 
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|     
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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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|     
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|     //    template<typename _Tp>
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|     //    inline slice_array<_Tp>::~slice_array () {}
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| 
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|     template<typename _Tp>
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|     inline void
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|     slice_array<_Tp>::operator= (const _Tp& __t) 
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|     { __valarray_fill (_M_array, _M_sz, _M_stride, __t); }
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|     
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|     template<typename _Tp>
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|     inline void
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|     slice_array<_Tp>::operator= (const valarray<_Tp>& __v) const
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|     { __valarray_copy (_Array<_Tp> (__v), _M_array, _M_sz, _M_stride); }
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|     
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|     template<typename _Tp>
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|     template<class _Dom>
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|     inline void
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|     slice_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const
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|     { __valarray_copy (__e, _M_sz, _M_array, _M_stride); }
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| 
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| #undef _DEFINE_VALARRAY_OPERATOR
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| #define _DEFINE_VALARRAY_OPERATOR(op, name)				\
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| template<typename _Tp>							\
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| inline void								\
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| slice_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const	\
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| {									\
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|   _Array_augmented_##name (_M_array, _M_sz, _M_stride, _Array<_Tp> (__v));\
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| }									\
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| 									\
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| template<typename _Tp> template<class _Dom>				\
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| inline void								\
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| slice_array<_Tp>::operator op##= (const _Expr<_Dom,_Tp>& __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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|         
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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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| 
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| #undef _DEFINE_VALARRAY_OPERATOR
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| 
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| } // std::
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| 
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| #endif /* _CPP_BITS_SLICE_ARRAY_H */
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| 
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| // Local Variables:
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| // mode:c++
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| // End:
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