725dc051ca
2000-10-05 Benjamin Kosnik <bkoz@cygnus.com> * include: New directory. * include/backward: New directory. * include/bits: New directory. * include/ext: New directory. * include/std: New directory. * include/*/*: Populate. * src/complex.cc: Adjust include of mathconf. * mkc++config (BASE_H): Add include. * src/Makefile.am: Support for topleve sources include directory. (INCLUDES): Add LIBMATH_INCLUDE. * src/Makefile.in: Regenerate. * math/Makefile.am (INCLUDES): Append /include. * math/Makefile.in: Regenerate. * libio/Makefile.am (INCLUDES): Add glibcpp_includedir. * libio/Makefile.in: Regenerate. From-SVN: r36723
1068 lines
43 KiB
C++
1068 lines
43 KiB
C++
// The template and inlines for the -*- C++ -*- internal _Meta class.
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// Copyright (C) 1997-1999, 2000 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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// 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@cmla.ens-cachan.fr>
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#ifndef _CPP_VALARRAY_META_H
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#define _CPP_VALARRAY_META_H 1
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namespace std {
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//
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// Implementing a loosened valarray return value is tricky.
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// First we need to meet 26.3.1/3: we should not add more than
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// two levels of template nesting. Therefore we resort to template
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// template to "flatten" loosened return value types.
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// At some point we use partial specialization to remove one level
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// template nesting due to _Expr<>
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//
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// This class is NOT defined. It doesn't need to.
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template<typename _Tp1, typename _Tp2> class _Constant;
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//
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// Unary function application closure.
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//
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template<class _Dom> class _UnFunBase {
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public:
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typedef typename _Dom::value_type value_type;
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typedef value_type _Vt;
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_UnFunBase (const _Dom& __e, _Vt __f(_Vt))
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: _M_expr(__e), _M_func(__f) {}
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_Vt operator[] (size_t __i) const { return _M_func(_M_expr[__i]); }
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size_t size () const { return _M_expr.size(); }
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private:
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const _Dom& _M_expr;
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_Vt (*_M_func)(_Vt);
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};
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template<template<class, class> class _Meta, class _Dom>
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class _UnFunClos;
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template<class _Dom>
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struct _UnFunClos<_Expr,_Dom> : _UnFunBase<_Dom> {
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typedef _UnFunBase<_Dom> _Base;
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typedef typename _Base::value_type value_type;
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_UnFunClos (const _Dom& __e, value_type __f(value_type))
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: _Base (__e, __f) {}
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};
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template<typename _Tp>
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struct _UnFunClos<_ValArray,_Tp> : _UnFunBase<valarray<_Tp> > {
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typedef _UnFunBase<valarray<_Tp> > _Base;
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typedef typename _Base::value_type value_type;
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_UnFunClos (const valarray<_Tp>& __v, _Tp __f(_Tp))
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: _Base (__v, __f) {}
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};
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//
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// Binary function application closure.
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//
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template<template<class, class> class _Meta1,
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template<class, class> class Meta2,
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class _Dom1, class _Dom2> class _BinFunClos;
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template<class _Dom1, class _Dom2> class _BinFunBase {
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public:
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typedef typename _Dom1::value_type value_type;
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typedef value_type _Vt;
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_BinFunBase (const _Dom1& __e1, const _Dom2& __e2,
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_Vt __f (_Vt, _Vt))
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: _M_expr1 (__e1), _M_expr2 (__e2), _M_func (__f) {}
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value_type operator[] (size_t __i) const
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{ return _M_func (_M_expr1[__i], _M_expr2[__i]); }
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size_t size () const { return _M_expr1.size (); }
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private:
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const _Dom1& _M_expr1;
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const _Dom2& _M_expr2;
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_Vt (*_M_func)(_Vt, _Vt);
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};
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template<class _Dom> class _BinFunBase1 {
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public:
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typedef typename _Dom::value_type value_type ;
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typedef value_type _Vt;
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_BinFunBase1 (const _Vt& __c, const _Dom& __e, _Vt __f(_Vt, _Vt))
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: _M_expr1 (__c), _M_expr2 (__e), _M_func (__f) {}
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value_type operator[] (size_t __i) const
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{ return _M_func (_M_expr1, _M_expr2[__i]); }
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size_t size () const { return _M_expr2.size (); }
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private:
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const _Vt& _M_expr1;
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const _Dom& _M_expr2;
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_Vt (*_M_func)(_Vt, _Vt);
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};
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template<class _Dom> class _BinFunBase2 {
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public:
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typedef typename _Dom::value_type value_type;
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typedef value_type _Vt;
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_BinFunBase2 (const _Dom& __e, const _Vt& __c, _Vt __f(_Vt, _Vt))
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: _M_expr1 (__e), _M_expr2 (__c), _M_func (__f) {}
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value_type operator[] (size_t __i) const
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{ return _M_func (_M_expr1[__i], _M_expr2); }
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size_t size () const { return _M_expr1.size (); }
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private:
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const _Dom& _M_expr1;
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const _Vt& _M_expr2;
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_Vt (*_M_func)(_Vt, _Vt);
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};
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template<class _Dom1, class _Dom2>
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struct _BinFunClos<_Expr,_Expr,_Dom1,_Dom2> : _BinFunBase<_Dom1,_Dom2> {
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typedef _BinFunBase<_Dom1,_Dom2> _Base;
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typedef typename _Base::value_type value_type;
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typedef value_type _Tp;
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_BinFunClos (const _Dom1& __e1, const _Dom2& __e2,
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_Tp __f(_Tp, _Tp))
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: _Base (__e1, __e2, __f) {}
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};
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template<typename _Tp>
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struct _BinFunClos<_ValArray,_ValArray,_Tp,_Tp>
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: _BinFunBase<valarray<_Tp>, valarray<_Tp> > {
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typedef _BinFunBase<valarray<_Tp>, valarray<_Tp> > _Base;
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typedef _Tp value_type;
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_BinFunClos (const valarray<_Tp>& __v, const valarray<_Tp>& __w,
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_Tp __f(_Tp, _Tp))
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: _Base (__v, __w, __f) {}
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};
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template<class _Dom>
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struct _BinFunClos<_Expr,_ValArray,_Dom,typename _Dom::value_type>
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: _BinFunBase<_Dom,valarray<typename _Dom::value_type> > {
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typedef typename _Dom::value_type _Tp;
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typedef _BinFunBase<_Dom,valarray<_Tp> > _Base;
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typedef _Tp value_type;
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_BinFunClos (const _Dom& __e, const valarray<_Tp>& __v,
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_Tp __f(_Tp, _Tp))
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: _Base (__e, __v, __f) {}
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};
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template<class _Dom>
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struct _BinFunClos<_ValArray,_Expr,typename _Dom::value_type,_Dom>
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: _BinFunBase<valarray<typename _Dom::value_type>,_Dom> {
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typedef typename _Dom::value_type _Tp;
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typedef _BinFunBase<_Dom,valarray<_Tp> > _Base;
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typedef _Tp value_type;
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_BinFunClos (const valarray<_Tp>& __v, const _Dom& __e,
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_Tp __f(_Tp, _Tp))
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: _Base (__v, __e, __f) {}
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};
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template<class _Dom>
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struct _BinFunClos<_Expr,_Constant,_Dom,typename _Dom::value_type>
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: _BinFunBase2<_Dom> {
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typedef typename _Dom::value_type _Tp;
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typedef _Tp value_type;
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typedef _BinFunBase2<_Dom> _Base;
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_BinFunClos (const _Dom& __e, const _Tp& __t, _Tp __f (_Tp, _Tp))
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: _Base (__e, __t, __f) {}
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};
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template<class _Dom>
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struct _BinFunClos<_Constant,_Expr,_Dom,typename _Dom::value_type>
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: _BinFunBase1<_Dom> {
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typedef typename _Dom::value_type _Tp;
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typedef _Tp value_type;
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typedef _BinFunBase1<_Dom> _Base;
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_BinFunClos (const _Tp& __t, const _Dom& __e, _Tp __f (_Tp, _Tp))
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: _Base (__t, __e, __f) {}
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};
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template<typename _Tp>
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struct _BinFunClos<_ValArray,_Constant,_Tp,_Tp>
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: _BinFunBase2<valarray<_Tp> > {
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typedef _BinFunBase2<valarray<_Tp> > _Base;
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typedef _Tp value_type;
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_BinFunClos (const valarray<_Tp>& __v, const _Tp& __t,
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_Tp __f(_Tp, _Tp))
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: _Base (__v, __t, __f) {}
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};
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template<typename _Tp>
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struct _BinFunClos<_Constant,_ValArray,_Tp,_Tp>
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: _BinFunBase1<valarray<_Tp> > {
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typedef _BinFunBase1<valarray<_Tp> > _Base;
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typedef _Tp value_type;
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_BinFunClos (const _Tp& __t, const valarray<_Tp>& __v,
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_Tp __f (_Tp, _Tp))
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: _Base (__t, __v, __f) {}
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};
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//
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// Apply function taking a value/const reference closure
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//
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template<typename _Dom, typename _Arg> class _FunBase {
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public:
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typedef typename _Dom::value_type value_type;
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_FunBase (const _Dom& __e, value_type __f(_Arg))
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: _M_expr (__e), _M_func (__f) {}
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value_type operator[] (size_t __i) const
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{ return _M_func (_M_expr[__i]); }
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size_t size() const { return _M_expr.size ();}
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private:
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const _Dom& _M_expr;
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value_type (*_M_func)(_Arg);
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};
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template<class _Dom>
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struct _ValFunClos<_Expr,_Dom>
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: _FunBase<_Dom, typename _Dom::value_type> {
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typedef _FunBase<_Dom, typename _Dom::value_type> _Base;
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typedef typename _Base::value_type value_type;
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typedef value_type _Tp;
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_ValFunClos (const _Dom& __e, _Tp __f (_Tp)) : _Base (__e, __f) {}
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};
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template<typename _Tp>
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struct _ValFunClos<_ValArray,_Tp>
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: _FunBase<valarray<_Tp>, _Tp> {
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typedef _FunBase<valarray<_Tp>, _Tp> _Base;
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typedef _Tp value_type;
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_ValFunClos (const valarray<_Tp>& __v, _Tp __f(_Tp))
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: _Base (__v, __f) {}
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};
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template<class _Dom>
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struct _RefFunClos<_Expr,_Dom> :
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_FunBase<_Dom, const typename _Dom::value_type&> {
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typedef _FunBase<_Dom, const typename _Dom::value_type&> _Base;
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typedef typename _Base::value_type value_type;
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typedef value_type _Tp;
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_RefFunClos (const _Dom& __e, _Tp __f (const _Tp&))
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: _Base (__e, __f) {}
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};
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template<typename _Tp>
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struct _RefFunClos<_ValArray,_Tp>
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: _FunBase<valarray<_Tp>, const _Tp&> {
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typedef _FunBase<valarray<_Tp>, const _Tp&> _Base;
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typedef _Tp value_type;
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_RefFunClos (const valarray<_Tp>& __v, _Tp __f(const _Tp&))
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: _Base (__e, __f) {}
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};
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//
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// Unary expression closure.
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//
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template<template<class> class _Oper, typename _Arg>
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class _UnBase {
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public:
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typedef _Oper<typename _Arg::value_type> _Op;
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typedef typename _Op::result_type value_type;
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_UnBase (const _Arg& __e) : _M_expr(__e) {}
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value_type operator[] (size_t) const;
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size_t size () const { return _M_expr.size (); }
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private:
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const _Arg& _M_expr;
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};
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template<template<class> class _Oper, typename _Arg>
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inline typename _UnBase<_Oper, _Arg>::value_type
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_UnBase<_Oper, _Arg>::operator[] (size_t __i) const
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{ return _Op() (_M_expr[__i]); }
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template<template<class> class _Oper, class _Dom>
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struct _UnClos<_Oper, _Expr, _Dom> : _UnBase<_Oper, _Dom> {
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typedef _Dom _Arg;
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typedef _UnBase<_Oper, _Dom> _Base;
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typedef typename _Base::value_type value_type;
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_UnClos (const _Arg& __e) : _Base(__e) {}
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};
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template<template<class> class _Oper, typename _Tp>
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struct _UnClos<_Oper, _ValArray, _Tp> : _UnBase<_Oper, valarray<_Tp> > {
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typedef valarray<_Tp> _Arg;
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typedef _UnBase<_Oper, valarray<_Tp> > _Base;
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typedef typename _Base::value_type value_type;
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_UnClos (const _Arg& __e) : _Base(__e) {}
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};
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//
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// Binary expression closure.
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//
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template<template<class> class _Oper,
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typename _FirstArg, typename _SecondArg>
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class _BinBase {
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public:
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typedef _Oper<typename _FirstArg::value_type> _Op;
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typedef typename _Op::result_type value_type;
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_BinBase (const _FirstArg& __e1, const _SecondArg& __e2)
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: _M_expr1 (__e1), _M_expr2 (__e2) {}
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value_type operator[] (size_t) const;
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size_t size () const { return _M_expr1.size (); }
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private:
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const _FirstArg& _M_expr1;
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const _SecondArg& _M_expr2;
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};
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template<template<class> class _Oper,
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typename _FirstArg, typename _SecondArg>
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inline typename _BinBase<_Oper,_FirstArg,_SecondArg>::value_type
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_BinBase<_Oper,_FirstArg,_SecondArg>::operator[] (size_t __i) const
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{ return _Op() (_M_expr1[__i], _M_expr2[__i]); }
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template<template<class> class _Oper, class _Clos>
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class _BinBase2 {
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public:
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typedef typename _Clos::value_type _Vt;
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typedef _Oper<_Vt> _Op;
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typedef typename _Op::result_type value_type;
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_BinBase2 (const _Clos& __e, const _Vt& __t)
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: _M_expr1 (__e), _M_expr2 (__t) {}
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value_type operator[] (size_t) const;
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size_t size () const { return _M_expr1.size (); }
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private:
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const _Clos& _M_expr1;
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const _Vt& _M_expr2;
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};
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template<template<class> class _Oper, class _Clos>
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inline typename _BinBase2<_Oper,_Clos>::value_type
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_BinBase2<_Oper,_Clos>::operator[] (size_t __i) const
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{ return _Op() (_M_expr1[__i], _M_expr2); }
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template<template<class> class _Oper, class _Clos>
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class _BinBase1 {
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public:
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typedef typename _Clos::value_type _Vt;
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typedef _Oper<_Vt> _Op;
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typedef typename _Op::result_type value_type;
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_BinBase1 (const _Vt& __t, const _Clos& __e)
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: _M_expr1 (__t), _M_expr2 (__e) {}
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value_type operator[] (size_t) const;
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size_t size () const { return _M_expr2.size (); }
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private:
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const _Vt& _M_expr1;
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const _Clos& _M_expr2;
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};
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template<template<class> class _Oper, class _Clos>
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inline typename
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_BinBase1<_Oper,_Clos>::value_type
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_BinBase1<_Oper,_Clos>:: operator[] (size_t __i) const
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{ return _Op() (_M_expr1, _M_expr2[__i]); }
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template<template<class> class _Oper, class _Dom1, class _Dom2>
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struct _BinClos<_Oper, _Expr, _Expr, _Dom1, _Dom2>
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: _BinBase<_Oper,_Dom1,_Dom2> {
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typedef _BinBase<_Oper,_Dom1,_Dom2> _Base;
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typedef typename _Base::value_type value_type;
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_BinClos(const _Dom1& __e1, const _Dom2& __e2) : _Base(__e1, __e2) {}
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};
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template<template<class> class _Oper, typename _Tp>
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struct _BinClos<_Oper,_ValArray,_ValArray,_Tp,_Tp>
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: _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> > {
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typedef _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> > _Base;
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typedef _Tp value_type;
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_BinClos (const valarray<_Tp>& __v, const valarray<_Tp>& __w)
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: _Base (__v, __w) {}
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};
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template<template<class> class _Oper, class _Dom>
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struct _BinClos<_Oper,_Expr,_ValArray,_Dom,typename _Dom::value_type>
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: _BinBase<_Oper,_Dom,valarray<typename _Dom::value_type> > {
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typedef typename _Dom::value_type _Tp;
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typedef _BinBase<_Oper,_Dom,valarray<_Tp> > _Base;
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typedef typename _Base::value_type value_type;
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_BinClos(const _Dom& __e1, const valarray<_Tp>& __e2)
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: _Base (__e1, __e2) {}
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};
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template<template<class> class _Oper, class _Dom>
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struct _BinClos<_Oper,_ValArray,_Expr,typename _Dom::value_type,_Dom>
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: _BinBase<_Oper,valarray<typename _Dom::value_type>,_Dom> {
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typedef typename _Dom::value_type _Tp;
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typedef _BinBase<_Oper,valarray<_Tp>,_Dom> _Base;
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typedef typename _Base::value_type value_type;
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_BinClos (const valarray<_Tp>& __e1, const _Dom& __e2)
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: _Base (__e1, __e2) {}
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};
|
|
|
|
template<template<class> class _Oper, class _Dom>
|
|
struct _BinClos<_Oper,_Expr,_Constant,_Dom,typename _Dom::value_type>
|
|
: _BinBase2<_Oper,_Dom> {
|
|
typedef typename _Dom::value_type _Tp;
|
|
typedef _BinBase2<_Oper,_Dom> _Base;
|
|
typedef typename _Base::value_type value_type;
|
|
|
|
_BinClos (const _Dom& __e1, const _Tp& __e2) : _Base (__e1, __e2) {}
|
|
};
|
|
|
|
template<template<class> class _Oper, class _Dom>
|
|
struct _BinClos<_Oper,_Constant,_Expr,typename _Dom::value_type,_Dom>
|
|
: _BinBase1<_Oper,_Dom> {
|
|
typedef typename _Dom::value_type _Tp;
|
|
typedef _BinBase1<_Oper,_Dom> _Base;
|
|
typedef typename _Base::value_type value_type;
|
|
|
|
_BinClos (const _Tp& __e1, const _Dom& __e2) : _Base (__e1, __e2) {}
|
|
};
|
|
|
|
template<template<class> class _Oper, typename _Tp>
|
|
struct _BinClos<_Oper,_ValArray,_Constant,_Tp,_Tp>
|
|
: _BinBase2<_Oper,valarray<_Tp> > {
|
|
typedef _BinBase2<_Oper,valarray<_Tp> > _Base;
|
|
typedef typename _Base::value_type value_type;
|
|
|
|
_BinClos (const valarray<_Tp>& __v, const _Tp& __t)
|
|
: _Base (__v, __t) {}
|
|
};
|
|
|
|
template<template<class> class _Oper, typename _Tp>
|
|
struct _BinClos<_Oper,_Constant,_ValArray,_Tp,_Tp>
|
|
: _BinBase1<_Oper,valarray<_Tp> > {
|
|
typedef _BinBase1<_Oper,valarray<_Tp> > _Base;
|
|
typedef typename _Base::value_type value_type;
|
|
|
|
_BinClos (const _Tp& __t, const valarray<_Tp>& __v)
|
|
: _Base (__t, __v) {}
|
|
};
|
|
|
|
|
|
//
|
|
// slice_array closure.
|
|
//
|
|
template<typename _Dom> class _SBase {
|
|
public:
|
|
typedef typename _Dom::value_type value_type;
|
|
|
|
_SBase (const _Dom& __e, const slice& __s)
|
|
: _M_expr (__e), _M_slice (__s) {}
|
|
value_type operator[] (size_t __i) const
|
|
{ return _M_expr[_M_slice.start () + __i * _M_slice.stride ()]; }
|
|
size_t size() const { return _M_slice.size (); }
|
|
|
|
private:
|
|
const _Dom& _M_expr;
|
|
const slice& _M_slice;
|
|
};
|
|
|
|
template<typename _Tp> class _SBase<_Array<_Tp> > {
|
|
public:
|
|
typedef _Tp value_type;
|
|
|
|
_SBase (_Array<_Tp> __a, const slice& __s)
|
|
: _M_array (__a._M_data+__s.start()), _M_size (__s.size()),
|
|
_M_stride (__s.stride()) {}
|
|
value_type operator[] (size_t __i) const
|
|
{ return _M_array._M_data[__i * _M_stride]; }
|
|
size_t size() const { return _M_size; }
|
|
|
|
private:
|
|
const _Array<_Tp> _M_array;
|
|
const size_t _M_size;
|
|
const size_t _M_stride;
|
|
};
|
|
|
|
template<class _Dom> struct _SClos<_Expr,_Dom> : _SBase<_Dom> {
|
|
typedef _SBase<_Dom> _Base;
|
|
typedef typename _Base::value_type value_type;
|
|
|
|
_SClos (const _Dom& __e, const slice& __s) : _Base (__e, __s) {}
|
|
};
|
|
|
|
template<typename _Tp>
|
|
struct _SClos<_ValArray,_Tp> : _SBase<_Array<_Tp> > {
|
|
typedef _SBase<_Array<_Tp> > _Base;
|
|
typedef _Tp value_type;
|
|
|
|
_SClos (_Array<_Tp> __a, const slice& __s) : _Base (__a, __s) {}
|
|
};
|
|
|
|
//
|
|
// gslice_array closure.
|
|
//
|
|
template<class _Dom> class _GBase {
|
|
public:
|
|
typedef typename _Dom::value_type value_type;
|
|
|
|
_GBase (const _Dom& __e, const valarray<size_t>& __i)
|
|
: _M_expr (__e), _M_index(__i) {}
|
|
value_type operator[] (size_t __i) const
|
|
{ return _M_expr[_M_index[__i]]; }
|
|
size_t size () const { return _M_index.size(); }
|
|
|
|
private:
|
|
const _Dom& _M_expr;
|
|
const valarray<size_t>& _M_index;
|
|
};
|
|
|
|
template<typename _Tp> class _GBase<_Array<_Tp> > {
|
|
public:
|
|
typedef _Tp value_type;
|
|
|
|
_GBase (_Array<_Tp> __a, const valarray<size_t>& __i)
|
|
: _M_array (__a), _M_index(__i) {}
|
|
value_type operator[] (size_t __i) const
|
|
{ return _M_array._M_data[_M_index[__i]]; }
|
|
size_t size () const { return _M_index.size(); }
|
|
|
|
private:
|
|
const _Array<_Tp> _M_array;
|
|
const valarray<size_t>& _M_index;
|
|
};
|
|
|
|
template<class _Dom> struct _GClos<_Expr,_Dom> : _GBase<_Dom> {
|
|
typedef _GBase<_Dom> _Base;
|
|
typedef typename _Base::value_type value_type;
|
|
|
|
_GClos (const _Dom& __e, const valarray<size_t>& __i)
|
|
: _Base (__e, __i) {}
|
|
};
|
|
|
|
template<typename _Tp>
|
|
struct _GClos<_ValArray,_Tp> : _GBase<_Array<_Tp> > {
|
|
typedef _GBase<_Array<_Tp> > _Base;
|
|
typedef typename _Base::value_type value_type;
|
|
|
|
_GClos (_Array<_Tp> __a, const valarray<size_t>& __i)
|
|
: _Base (__a, __i) {}
|
|
};
|
|
|
|
//
|
|
// indirect_array closure
|
|
//
|
|
|
|
template<class _Dom> class _IBase {
|
|
public:
|
|
typedef typename _Dom::value_type value_type;
|
|
|
|
_IBase (const _Dom& __e, const valarray<size_t>& __i)
|
|
: _M_expr (__e), _M_index (__i) {}
|
|
value_type operator[] (size_t __i) const
|
|
{ return _M_expr[_M_index[__i]]; }
|
|
size_t size() const { return _M_index.size(); }
|
|
|
|
private:
|
|
const _Dom& _M_expr;
|
|
const valarray<size_t>& _M_index;
|
|
};
|
|
|
|
template<class _Dom> struct _IClos<_Expr,_Dom> : _IBase<_Dom> {
|
|
typedef _IBase<_Dom> _Base;
|
|
typedef typename _Base::value_type value_type;
|
|
|
|
_IClos (const _Dom& __e, const valarray<size_t>& __i)
|
|
: _Base (__e, __i) {}
|
|
};
|
|
|
|
template<typename _Tp>
|
|
struct _IClos<_ValArray,_Tp> : _IBase<valarray<_Tp> > {
|
|
typedef _IBase<valarray<_Tp> > _Base;
|
|
typedef _Tp value_type;
|
|
|
|
_IClos (const valarray<_Tp>& __a, const valarray<size_t>& __i)
|
|
: _Base (__a, __i) {}
|
|
};
|
|
|
|
//
|
|
// class _Expr
|
|
//
|
|
template<class _Clos, typename _Tp> class _Expr {
|
|
public:
|
|
typedef _Tp value_type;
|
|
|
|
_Expr (const _Clos&);
|
|
|
|
const _Clos& operator() () const;
|
|
|
|
value_type operator[] (size_t) const;
|
|
valarray<value_type> operator[] (slice) const;
|
|
valarray<value_type> operator[] (const gslice&) const;
|
|
valarray<value_type> operator[] (const valarray<bool>&) const;
|
|
valarray<value_type> operator[] (const valarray<size_t>&) const;
|
|
|
|
_Expr<_UnClos<_Unary_plus,_Expr,_Clos>, value_type>
|
|
operator+ () const;
|
|
|
|
_Expr<_UnClos<negate,_Expr,_Clos>, value_type>
|
|
operator- () const;
|
|
|
|
_Expr<_UnClos<_Bitwise_not,_Expr,_Clos>, value_type>
|
|
operator~ () const;
|
|
|
|
_Expr<_UnClos<logical_not,_Expr,_Clos>, bool>
|
|
operator! () const;
|
|
|
|
size_t size () const;
|
|
value_type sum () const;
|
|
|
|
valarray<value_type> shift (int) const;
|
|
valarray<value_type> cshift (int) const;
|
|
|
|
value_type min() const;
|
|
value_type max() const;
|
|
|
|
valarray<value_type> apply(value_type (*) (const value_type&)) const;
|
|
valarray<value_type> apply(value_type (*) (value_type)) const;
|
|
|
|
private:
|
|
const _Clos _M_closure;
|
|
};
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline
|
|
_Expr<_Clos,_Tp>::_Expr (const _Clos& __c) : _M_closure(__c) {}
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline const _Clos&
|
|
_Expr<_Clos,_Tp>::operator() () const
|
|
{ return _M_closure; }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline _Tp
|
|
_Expr<_Clos,_Tp>::operator[] (size_t __i) const
|
|
{ return _M_closure[__i]; }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline valarray<_Tp>
|
|
_Expr<_Clos,_Tp>::operator[] (slice __s) const
|
|
{ return _M_closure[__s]; }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline valarray<_Tp>
|
|
_Expr<_Clos,_Tp>::operator[] (const gslice& __gs) const
|
|
{ return _M_closure[__gs]; }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline valarray<_Tp>
|
|
_Expr<_Clos,_Tp>::operator[] (const valarray<bool>& __m) const
|
|
{ return _M_closure[__m]; }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline valarray<_Tp>
|
|
_Expr<_Clos,_Tp>::operator[] (const valarray<size_t>& __i) const
|
|
{ return _M_closure[__i]; }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline size_t
|
|
_Expr<_Clos,_Tp>::size () const { return _M_closure.size (); }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline valarray<_Tp>
|
|
_Expr<_Clos, _Tp>::shift(int __n) const
|
|
{ return valarray<_Tp>(_M_closure).shift(__n); }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline valarray<_Tp>
|
|
_Expr<_Clos, _Tp>::cshift(int __n) const
|
|
{ return valarray<_Tp>(_M_closure).cshift(__n); }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline valarray<_Tp>
|
|
_Expr<_Clos, _Tp>::apply(_Tp __f(const _Tp&)) const
|
|
{ return valarray<_Tp>(_M_closure).apply(__f); }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline valarray<_Tp>
|
|
_Expr<_Clos, _Tp>::apply(_Tp __f(_Tp)) const
|
|
{ return valarray<_Tp>(_M_closure).apply(__f); }
|
|
|
|
// XXX: replace this with a more robust summation algorithm.
|
|
template<class _Clos, typename _Tp>
|
|
inline _Tp
|
|
_Expr<_Clos,_Tp>::sum () const
|
|
{
|
|
size_t __n = _M_closure.size();
|
|
if (__n == 0) return _Tp();
|
|
else {
|
|
_Tp __s = _M_closure[--__n];
|
|
while (__n != 0) __s += _M_closure[--__n];
|
|
return __s;
|
|
}
|
|
}
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline _Tp
|
|
_Expr<_Clos, _Tp>::min() const
|
|
{ return __valarray_min(_M_closure); }
|
|
|
|
template<class _Clos, typename _Tp>
|
|
inline _Tp
|
|
_Expr<_Clos, _Tp>::max() const
|
|
{ return __valarray_max(_M_closure); }
|
|
|
|
template<class _Dom, typename _Tp>
|
|
inline _Expr<_UnClos<logical_not,_Expr,_Dom>, bool>
|
|
_Expr<_Dom,_Tp>::operator! () const
|
|
{
|
|
typedef _UnClos<logical_not,_Expr,_Dom> _Closure;
|
|
return _Expr<_Closure,_Tp> (_Closure(this->_M_closure));
|
|
}
|
|
|
|
#define _DEFINE_EXPR_UNARY_OPERATOR(_Op, _Name) \
|
|
template<class _Dom, typename _Tp> \
|
|
inline _Expr<_UnClos<_Name,_Expr,_Dom>,_Tp> \
|
|
_Expr<_Dom,_Tp>::operator _Op () const \
|
|
{ \
|
|
typedef _UnClos<_Name,_Expr,_Dom> _Closure; \
|
|
return _Expr<_Closure,_Tp> (_Closure (this->_M_closure)); \
|
|
}
|
|
|
|
_DEFINE_EXPR_UNARY_OPERATOR(+, _Unary_plus)
|
|
_DEFINE_EXPR_UNARY_OPERATOR(-, negate)
|
|
_DEFINE_EXPR_UNARY_OPERATOR(~, _Bitwise_not)
|
|
|
|
#undef _DEFINE_EXPR_UNARY_OPERATOR
|
|
|
|
|
|
#define _DEFINE_EXPR_BINARY_OPERATOR(_Op, _Name) \
|
|
template<class _Dom1, class _Dom2> \
|
|
inline _Expr<_BinClos<_Name,_Expr,_Expr,_Dom1,_Dom2>, \
|
|
typename _Name<typename _Dom1::value_type>::result_type> \
|
|
operator _Op (const _Expr<_Dom1,typename _Dom1::value_type>& __v, \
|
|
const _Expr<_Dom2,typename _Dom2::value_type>& __w) \
|
|
{ \
|
|
typedef typename _Dom1::value_type _Arg; \
|
|
typedef typename _Name<_Arg>::result_type _Value; \
|
|
typedef _BinClos<_Name,_Expr,_Expr,_Dom1,_Dom2> _Closure; \
|
|
return _Expr<_Closure,_Value> (_Closure (__v (), __w ())); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinClos<_Name,_Expr,_Constant,_Dom,typename _Dom::value_type>, \
|
|
typename _Name<typename _Dom::value_type>::result_type> \
|
|
operator _Op (const _Expr<_Dom,typename _Dom::value_type>& __v, \
|
|
const typename _Dom::value_type& __t) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Arg; \
|
|
typedef typename _Name<_Arg>::result_type _Value; \
|
|
typedef _BinClos<_Name,_Expr,_Constant,_Dom,_Arg> _Closure; \
|
|
return _Expr<_Closure,_Value> (_Closure (__v (), __t)); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinClos<_Name,_Constant,_Expr,typename _Dom::value_type,_Dom>, \
|
|
typename _Name<typename _Dom::value_type>::result_type> \
|
|
operator _Op (const typename _Dom::value_type& __t, \
|
|
const _Expr<_Dom,typename _Dom::value_type>& __v) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Arg; \
|
|
typedef typename _Name<_Arg>::result_type _Value; \
|
|
typedef _BinClos<_Name,_Constant,_Expr,_Arg,_Dom> _Closure; \
|
|
return _Expr<_Closure,_Value> (_Closure (__t, __v ())); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinClos<_Name,_Expr,_ValArray,_Dom,typename _Dom::value_type>, \
|
|
typename _Name<typename _Dom::value_type>::result_type> \
|
|
operator _Op (const _Expr<_Dom,typename _Dom::value_type>& __e, \
|
|
const valarray<typename _Dom::value_type>& __v) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Arg; \
|
|
typedef typename _Name<_Arg>::result_type _Value; \
|
|
typedef _BinClos<_Name,_Expr,_ValArray,_Dom,_Arg> _Closure; \
|
|
return _Expr<_Closure,_Value> (_Closure (__e (), __v)); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinClos<_Name,_ValArray,_Expr,typename _Dom::value_type,_Dom>, \
|
|
typename _Name<typename _Dom::value_type>::result_type> \
|
|
operator _Op (const valarray<typename _Dom::value_type>& __v, \
|
|
const _Expr<_Dom,typename _Dom::value_type>& __e) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Tp; \
|
|
typedef typename _Name<_Tp>::result_type _Value; \
|
|
typedef _BinClos<_Name,_ValArray,_Expr,_Tp,_Dom> _Closure; \
|
|
return _Expr<_Closure,_Value> (_Closure (__v, __e ())); \
|
|
}
|
|
|
|
_DEFINE_EXPR_BINARY_OPERATOR(+, plus)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(-, minus)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(*, multiplies)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(/, divides)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(%, modulus)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(^, _Bitwise_xor)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(&, _Bitwise_and)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(|, _Bitwise_or)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(<<, _Shift_left)
|
|
_DEFINE_EXPR_BINARY_OPERATOR(>>, _Shift_right)
|
|
|
|
#undef _DEFINE_EXPR_BINARY_OPERATOR
|
|
|
|
#define _DEFINE_EXPR_RELATIONAL_OPERATOR(_Op, _Name) \
|
|
template<class _Dom1, class _Dom2> \
|
|
inline _Expr<_BinClos<_Name,_Expr,_Expr,_Dom1,_Dom2>, bool> \
|
|
operator _Op (const _Expr<_Dom1,typename _Dom1::value_type>& __v, \
|
|
const _Expr<_Dom2,typename _Dom2::value_type>& __w) \
|
|
{ \
|
|
typedef typename _Dom1::value_type _Arg; \
|
|
typedef _BinClos<_Name,_Expr,_Expr,_Dom1,_Dom2> _Closure; \
|
|
return _Expr<_Closure,bool> (_Closure (__v (), __w ())); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinClos<_Name,_Expr,_Constant,_Dom,typename _Dom::value_type>, \
|
|
bool> \
|
|
operator _Op (const _Expr<_Dom,typename _Dom::value_type>& __v, \
|
|
const typename _Dom::value_type& __t) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Arg; \
|
|
typedef _BinClos<_Name,_Expr,_Constant,_Dom,_Arg> _Closure; \
|
|
return _Expr<_Closure,bool> (_Closure (__v (), __t)); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinClos<_Name,_Constant,_Expr,typename _Dom::value_type,_Dom>, \
|
|
bool> \
|
|
operator _Op (const typename _Dom::value_type& __t, \
|
|
const _Expr<_Dom,typename _Dom::value_type>& __v) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Arg; \
|
|
typedef _BinClos<_Name,_Constant,_Expr,_Arg,_Dom> _Closure; \
|
|
return _Expr<_Closure,bool> (_Closure (__t, __v ())); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinClos<_Name,_Expr,_ValArray,_Dom,typename _Dom::value_type>, \
|
|
bool> \
|
|
operator _Op (const _Expr<_Dom,typename _Dom::value_type>& __e, \
|
|
const valarray<typename _Dom::value_type>& __v) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Tp; \
|
|
typedef _BinClos<_Name,_Expr,_ValArray,_Dom,_Tp> _Closure; \
|
|
return _Expr<_Closure,bool> (_Closure (__e (), __v)); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinClos<_Name,_ValArray,_Expr,typename _Dom::value_type,_Dom>, \
|
|
bool> \
|
|
operator _Op (const valarray<typename _Dom::value_type>& __v, \
|
|
const _Expr<_Dom,typename _Dom::value_type>& __e) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Tp; \
|
|
typedef _BinClos<_Name,_ValArray,_Expr,_Tp,_Dom> _Closure; \
|
|
return _Expr<_Closure,bool> (_Closure (__v, __e ())); \
|
|
}
|
|
|
|
_DEFINE_EXPR_RELATIONAL_OPERATOR(&&, logical_and)
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_DEFINE_EXPR_RELATIONAL_OPERATOR(||, logical_or)
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_DEFINE_EXPR_RELATIONAL_OPERATOR(==, equal_to)
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|
_DEFINE_EXPR_RELATIONAL_OPERATOR(!=, not_equal_to)
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|
_DEFINE_EXPR_RELATIONAL_OPERATOR(<, less)
|
|
_DEFINE_EXPR_RELATIONAL_OPERATOR(>, greater)
|
|
_DEFINE_EXPR_RELATIONAL_OPERATOR(<=, less_equal)
|
|
_DEFINE_EXPR_RELATIONAL_OPERATOR(>=, greater_equal)
|
|
|
|
#undef _DEFINE_EXPR_RELATIONAL_OPERATOR
|
|
|
|
|
|
|
|
#define _DEFINE_EXPR_UNARY_FUNCTION(_Name) \
|
|
template<class _Dom> \
|
|
inline _Expr<_UnFunClos<_Expr,_Dom>,typename _Dom::value_type> \
|
|
_Name(const _Expr<_Dom,typename _Dom::value_type>& __e) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Tp; \
|
|
typedef _UnFunClos<_Expr,_Dom> _Closure; \
|
|
return _Expr<_Closure,_Tp>(_Closure(__e(), (_Tp(*)(_Tp))(&_Name))); \
|
|
} \
|
|
\
|
|
template<typename _Tp> \
|
|
inline _Expr<_UnFunClos<_ValArray,_Tp>,_Tp> \
|
|
_Name(const valarray<_Tp>& __v) \
|
|
{ \
|
|
typedef _UnFunClos<_ValArray,_Tp> _Closure; \
|
|
return _Expr<_Closure,_Tp> (_Closure (__v, (_Tp(*)(_Tp))(&_Name))); \
|
|
}
|
|
|
|
|
|
_DEFINE_EXPR_UNARY_FUNCTION(abs)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(cos)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(acos)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(cosh)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(sin)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(asin)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(sinh)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(tan)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(tanh)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(atan)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(exp)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(log)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(log10)
|
|
_DEFINE_EXPR_UNARY_FUNCTION(sqrt)
|
|
|
|
#undef _DEFINE_EXPR_UNARY_FUNCTION
|
|
|
|
|
|
#define _DEFINE_EXPR_BINARY_FUNCTION(_Name) \
|
|
template<class _Dom1, class _Dom2> \
|
|
inline _Expr<_BinFunClos<_Expr,_Expr,_Dom1,_Dom2>,typename _Dom1::value_type>\
|
|
_Name (const _Expr<_Dom1,typename _Dom1::value_type>& __e1, \
|
|
const _Expr<_Dom2,typename _Dom2::value_type>& __e2) \
|
|
{ \
|
|
typedef typename _Dom1::value_type _Tp; \
|
|
typedef _BinFunClos<_Expr,_Expr,_Dom1,_Dom2> _Closure; \
|
|
return _Expr<_Closure,_Tp> \
|
|
(_Closure (__e1 (), __e2 (), (_Tp(*)(_Tp, _Tp))(&_Name))); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinFunClos<_Expr,_ValArray,_Dom,typename _Dom::value_type>, \
|
|
typename _Dom::value_type> \
|
|
_Name (const _Expr<_Dom,typename _Dom::value_type>& __e, \
|
|
const valarray<typename _Dom::value_type>& __v) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Tp; \
|
|
typedef _BinFunClos<_Expr,_ValArray,_Dom,_Tp> _Closure; \
|
|
return _Expr<_Closure,_Tp> \
|
|
(_Closure (__e (), __v, (_Tp(*)(_Tp, _Tp))(&_Name))); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinFunClos<_ValArray,_Expr,typename _Dom::value_type,_Dom>, \
|
|
typename _Dom::value_type> \
|
|
_Name (const valarray<typename _Dom::valarray>& __v, \
|
|
const _Expr<_Dom,typename _Dom::value_type>& __e) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Tp; \
|
|
typedef _BinFunClos<_ValArray,_Expr,_Tp,_Dom> _Closure; \
|
|
return _Expr<_Closure,_Tp> \
|
|
(_Closure (__v, __e (), (_Tp(*)(_Tp, _Tp))(&_Name))); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinFunClos<_Expr,_Constant,_Dom,typename _Dom::value_type>, \
|
|
typename _Dom::value_type> \
|
|
_Name (const _Expr<_Dom, typename _Dom::value_type>& __e, \
|
|
const typename _Dom::value_type& __t) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Tp; \
|
|
typedef _BinFunClos<_Expr,_Constant,_Dom,_Tp> _Closure; \
|
|
return _Expr<_Closure,_Tp> \
|
|
(_Closure (__e (), __t, (_Tp(*)(_Tp, _Tp))(&_Name))); \
|
|
} \
|
|
\
|
|
template<class _Dom> \
|
|
inline _Expr<_BinFunClos<_Constant,_Expr,typename _Dom::value_type,_Dom>, \
|
|
typename _Dom::value_type> \
|
|
_Name (const typename _Dom::value_type& __t, \
|
|
const _Expr<_Dom,typename _Dom::value_type>& __e) \
|
|
{ \
|
|
typedef typename _Dom::value_type _Tp; \
|
|
typedef _BinFunClos<_Constant,_Expr,_Tp,_Dom> _Closure; \
|
|
return _Expr<_Closure,_Tp> \
|
|
(_Closure (__t, __e (), (_Tp(*)(_Tp, _Tp))(&_Name))); \
|
|
} \
|
|
\
|
|
template<typename _Tp> \
|
|
inline _Expr<_BinFunClos<_ValArray,_ValArray,_Tp,_Tp>, _Tp> \
|
|
_Name (const valarray<_Tp>& __v, const valarray<_Tp>& __w) \
|
|
{ \
|
|
typedef _BinFunClos<_ValArray,_ValArray,_Tp,_Tp> _Closure; \
|
|
return _Expr<_Closure,_Tp> \
|
|
(_Closure (__v, __w, (_Tp(*)(_Tp,_Tp))(&_Name))); \
|
|
} \
|
|
\
|
|
template<typename _Tp> \
|
|
inline _Expr<_BinFunClos<_ValArray,_Constant,_Tp,_Tp>,_Tp> \
|
|
_Name (const valarray<_Tp>& __v, const _Tp& __t) \
|
|
{ \
|
|
typedef _BinFunClos<_ValArray,_Constant,_Tp,_Tp> _Closure; \
|
|
return _Expr<_Closure,_Tp> \
|
|
(_Closure (__v, __t, (_Tp(*)(_Tp,_Tp))(&_Name))); \
|
|
} \
|
|
\
|
|
template<typename _Tp> \
|
|
inline _Expr<_BinFunClos<_Constant,_ValArray,_Tp,_Tp>,_Tp> \
|
|
_Name (const _Tp& __t, const valarray<_Tp>& __v) \
|
|
{ \
|
|
typedef _BinFunClos<_Constant,_ValArray,_Tp,_Tp> _Closure; \
|
|
return _Expr<_Closure,_Tp> \
|
|
(_Closure (__t, __v, (_Tp(*)(_Tp,_Tp))(&_Name))); \
|
|
}
|
|
|
|
_DEFINE_EXPR_BINARY_FUNCTION(atan2)
|
|
_DEFINE_EXPR_BINARY_FUNCTION(pow)
|
|
|
|
#undef _DEFINE_EXPR_BINARY_FUNCTION
|
|
|
|
} // std::
|
|
|
|
|
|
#endif /* _CPP_VALARRAY_META_H */
|
|
|
|
// Local Variables:
|
|
// mode:c++
|
|
// End:
|