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// The template and inlines for the -*- C++ -*- slice_array class.

// Copyright (C) 1997-1999, 2000, 2001 Free Software Foundation, Inc.

//

// 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 

#ifndef _CPP_BITS_SLICE_ARRAY_H

#define _CPP_BITS_SLICE_ARRAY_H 1

#pragma GCC system_header

namespace std

{

    template

    class slice_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 &);

        //        ~slice_array ();

        template

        void operator=   (const _Expr<_Dom,_Tp>&) const;

        template

        void operator*=  (const _Expr<_Dom,_Tp>&) const;

        template

        void operator/=  (const _Expr<_Dom,_Tp>&) const;

        template

        void operator%=  (const _Expr<_Dom,_Tp>&) const;

        template

        void operator+=  (const _Expr<_Dom,_Tp>&) const;

        template

        void operator-=  (const _Expr<_Dom,_Tp>&) const;

        template

        void operator^=  (const _Expr<_Dom,_Tp>&) const;

        template

        void operator&=  (const _Expr<_Dom,_Tp>&) const;

        template

        void operator|=  (const _Expr<_Dom,_Tp>&) const;

        template

        void operator<<= (const _Expr<_Dom,_Tp>&) const;

        template

        void operator>>= (const _Expr<_Dom,_Tp>&) const;

    private:

        friend class valarray<_Tp>;

        slice_array(_Array<_Tp>, const slice&);

        const size_t     _M_sz;

        const size_t     _M_stride;

        const _Array<_Tp> _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

    inline slice_array<_Tp>::slice_array (_Array<_Tp> __a, const slice& __s)

            : _M_sz (__s.size ()), _M_stride (__s.stride ()),

              _M_array (__a.begin () + __s.start ()) {}

    template

    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

    //    inline slice_array<_Tp>::~slice_array () {}

    template

    inline void

    slice_array<_Tp>::operator= (const _Tp& __t)

    { __valarray_fill (_M_array, _M_sz, _M_stride, __t); }

    template

    inline void

    slice_array<_Tp>::operator= (const valarray<_Tp>& __v) const

    { __valarray_copy (_Array<_Tp> (__v), _M_array, _M_sz, _M_stride); }

    template

    template

    inline void

    slice_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const

    { __valarray_copy (__e, _M_sz, _M_array, _M_stride); }

#undef _DEFINE_VALARRAY_OPERATOR

#define _DEFINE_VALARRAY_OPERATOR(op, name)				\

template							\

inline void								\

slice_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const	\

{									\

  _Array_augmented_##name (_M_array, _M_sz, _M_stride, _Array<_Tp> (__v));\

}									\

									\

template template				\

inline void								\

slice_array<_Tp>::operator op##= (const _Expr<_Dom,_Tp>& __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

} // std::

#endif /* _CPP_BITS_SLICE_ARRAY_H */

// Local Variables:

// mode:c++

// End: