diff options
Diffstat (limited to 'libstdc++-v3/bits/valarray_meta.h')
| -rw-r--r-- | libstdc++-v3/bits/valarray_meta.h | 1057 |
1 files changed, 1057 insertions, 0 deletions
diff --git a/libstdc++-v3/bits/valarray_meta.h b/libstdc++-v3/bits/valarray_meta.h new file mode 100644 index 0000000..1207bd9 --- /dev/null +++ b/libstdc++-v3/bits/valarray_meta.h @@ -0,0 +1,1057 @@ +// The template and inlines for the -*- C++ -*- internal _Meta class. + +// Copyright (C) 1997-1999 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 <Gabriel.Dos-Reis@cmla.ens-cachan.fr> + +#ifndef _CPP_VALARRAY_META_H +#define _CPP_VALARRAY_META_H 1 + +namespace std { + + // + // Implementing a loosened valarray return value is tricky. + // First we need to meet 26.3.1/3: we should not add more than + // two levels of template nesting. Therefore we resort to template + // template to "flatten" loosened return value types. + // At some point we use partial specialization to remove one level + // template nesting due to _Expr<> + // + + + // This class is NOT defined. It doesn't need to. + template<typename _Tp1, typename _Tp2> class _Constant; + + // + // Unary function application closure. + // + template<class _Dom> class _UnFunBase { + public: + typedef typename _Dom::value_type value_type; + typedef value_type _Vt; + + _UnFunBase (const _Dom& __e, _Vt __f(_Vt)) + : _M_expr(__e), _M_func(__f) {} + + _Vt operator[] (size_t __i) const { return _M_func(_M_expr[__i]); } + size_t size () const { return _M_expr.size(); } + + private: + const _Dom& _M_expr; + _Vt (*_M_func)(_Vt); + }; + + template<template<class, class> class _Meta, class _Dom> + class _UnFunClos; + + template<class _Dom> + struct _UnFunClos<_Expr,_Dom> : _UnFunBase<_Dom> { + typedef _UnFunBase<_Dom> _Base; + typedef typename _Base::value_type value_type; + + _UnFunClos (const _Dom& __e, value_type __f(value_type)) + : _Base (__e, __f) {} + }; + + template<typename _Tp> + struct _UnFunClos<_ValArray,_Tp> : _UnFunBase<valarray<_Tp> > { + typedef _UnFunBase<valarray<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _UnFunClos (const valarray<_Tp>& __v, _Tp __f(_Tp)) + : _Base (__v, __f) {} + }; + + // + // Binary function application closure. + // + template<template<class, class> class _Meta1, + template<class, class> class Meta2, + class _Dom1, class _Dom2> class _BinFunClos; + + template<class _Dom1, class _Dom2> class _BinFunBase { + public: + typedef typename _Dom1::value_type value_type; + typedef value_type _Vt; + + _BinFunBase (const _Dom1& __e1, const _Dom2& __e2, + _Vt __f (_Vt, _Vt)) + : _M_expr1 (__e1), _M_expr2 (__e2), _M_func (__f) {} + + value_type operator[] (size_t __i) const + { return _M_func (_M_expr1[__i], _M_expr2[__i]); } + size_t size () const { return _M_expr1.size (); } + + private: + const _Dom1& _M_expr1; + const _Dom2& _M_expr2; + _Vt (*_M_func)(_Vt, _Vt); + }; + + template<class _Dom> class _BinFunBase1 { + public: + typedef typename _Dom::value_type value_type ; + typedef value_type _Vt; + + _BinFunBase1 (const _Vt& __c, const _Dom& __e, _Vt __f(_Vt, _Vt)) + : _M_expr1 (__c), _M_expr2 (__e), _M_func (__f) {} + + value_type operator[] (size_t __i) const + { return _M_func (_M_expr1, _M_expr2[__i]); } + size_t size () const { return _M_expr2.size (); } + + private: + const _Vt& _M_expr1; + const _Dom& _M_expr2; + _Vt (*_M_func)(_Vt, _Vt); + }; + + template<class _Dom> class _BinFunBase2 { + public: + typedef typename _Dom::value_type value_type; + typedef value_type _Vt; + + _BinFunBase2 (const _Dom& __e, const _Vt& __c, _Vt __f(_Vt, _Vt)) + : _M_expr1 (__e), _M_expr2 (__c), _M_func (__f) {} + + value_type operator[] (size_t __i) const + { return _M_func (_M_expr1[__i], _M_expr2); } + size_t size () const { return _M_expr1.size (); } + + private: + const _Dom& _M_expr1; + const _Vt& _M_expr2; + _Vt (*_M_func)(_Vt, _Vt); + }; + + template<class _Dom1, class _Dom2> + struct _BinFunClos<_Expr,_Expr,_Dom1,_Dom2> : _BinFunBase<_Dom1,_Dom2> { + typedef _BinFunBase<_Dom1,_Dom2> _Base; + typedef typename _Base::value_type value_type; + typedef value_type _Tp; + + _BinFunClos (const _Dom1& __e1, const _Dom2& __e2, + _Tp __f(_Tp, _Tp)) + : _Base (__e1, __e2, __f) {} + }; + + template<typename _Tp> + struct _BinFunClos<_ValArray,_ValArray,_Tp,_Tp> + : _BinFunBase<valarray<_Tp>, valarray<_Tp> > { + typedef _BinFunBase<valarray<_Tp>, valarray<_Tp> > _Base; + typedef _Tp value_type; + + _BinFunClos (const valarray<_Tp>& __v, const valarray<_Tp>& __w, + _Tp __f(_Tp, _Tp)) + : _Base (__v, __w, __f) {} + }; + + template<class _Dom> + struct _BinFunClos<_Expr,_ValArray,_Dom,typename _Dom::value_type> + : _BinFunBase<_Dom,valarray<typename _Dom::value_type> > { + typedef typename _Dom::value_type _Tp; + typedef _BinFunBase<_Dom,valarray<_Tp> > _Base; + typedef _Tp value_type; + + _BinFunClos (const _Dom& __e, const valarray<_Tp>& __v, + _Tp __f(_Tp, _Tp)) + : _Base (__e, __v, __f) {} + }; + + template<class _Dom> + struct _BinFunClos<_ValArray,_Expr,typename _Dom::value_type,_Dom> + : _BinFunBase<valarray<typename _Dom::value_type>,_Dom> { + typedef typename _Dom::value_type _Tp; + typedef _BinFunBase<_Dom,valarray<_Tp> > _Base; + typedef _Tp value_type; + + _BinFunClos (const valarray<_Tp>& __v, const _Dom& __e, + _Tp __f(_Tp, _Tp)) + : _Base (__v, __e, __f) {} + }; + + template<class _Dom> + struct _BinFunClos<_Expr,_Constant,_Dom,typename _Dom::value_type> + : _BinFunBase2<_Dom> { + typedef typename _Dom::value_type _Tp; + typedef _Tp value_type; + typedef _BinFunBase2<_Dom> _Base; + + _BinFunClos (const _Dom& __e, const _Tp& __t, _Tp __f (_Tp, _Tp)) + : _Base (__e, __t, __f) {} + }; + + template<class _Dom> + struct _BinFunClos<_Constant,_Expr,_Dom,typename _Dom::value_type> + : _BinFunBase1<_Dom> { + typedef typename _Dom::value_type _Tp; + typedef _Tp value_type; + typedef _BinFunBase1<_Dom> _Base; + + _BinFunClos (const _Tp& __t, const _Dom& __e, _Tp __f (_Tp, _Tp)) + : _Base (__t, __e, __f) {} + }; + + template<typename _Tp> + struct _BinFunClos<_ValArray,_Constant,_Tp,_Tp> + : _BinFunBase2<valarray<_Tp> > { + typedef _BinFunBase2<valarray<_Tp> > _Base; + typedef _Tp value_type; + + _BinFunClos (const valarray<_Tp>& __v, const _Tp& __t, + _Tp __f(_Tp, _Tp)) + : _Base (__v, __t, __f) {} + }; + + template<typename _Tp> + struct _BinFunClos<_Constant,_ValArray,_Tp,_Tp> + : _BinFunBase1<valarray<_Tp> > { + typedef _BinFunBase1<valarray<_Tp> > _Base; + typedef _Tp value_type; + + _BinFunClos (const _Tp& __t, const valarray<_Tp>& __v, + _Tp __f (_Tp, _Tp)) + : _Base (__t, __v, __f) {} + }; + + // + // Apply function taking a value/const reference closure + // + + template<typename _Dom, typename _Arg> class _FunBase { + public: + typedef typename _Dom::value_type value_type; + + _FunBase (const _Dom& __e, value_type __f(_Arg)) + : _M_expr (__e), _M_func (__f) {} + + value_type operator[] (size_t __i) const + { return _M_func (_M_expr[__i]); } + size_t size() const { return _M_expr.size ();} + + private: + const _Dom& _M_expr; + value_type (*_M_func)(_Arg); + }; + + template<class _Dom> + struct _ValFunClos<_Expr,_Dom> + : _FunBase<_Dom, typename _Dom::value_type> { + typedef _FunBase<_Dom, typename _Dom::value_type> _Base; + typedef typename _Base::value_type value_type; + typedef value_type _Tp; + + _ValFunClos (const _Dom& __e, _Tp __f (_Tp)) : _Base (__e, __f) {} + }; + + template<typename _Tp> + struct _ValFunClos<_ValArray,_Tp> + : _FunBase<valarray<_Tp>, _Tp> { + typedef _FunBase<valarray<_Tp>, _Tp> _Base; + typedef _Tp value_type; + + _ValFunClos (const valarray<_Tp>& __v, _Tp __f(_Tp)) + : _Base (__v, __f) {} + }; + + template<class _Dom> + struct _RefFunClos<_Expr,_Dom> : + _FunBase<_Dom, const typename _Dom::value_type&> { + typedef _FunBase<_Dom, const typename _Dom::value_type&> _Base; + typedef typename _Base::value_type value_type; + typedef value_type _Tp; + + _RefFunClos (const _Dom& __e, _Tp __f (const _Tp&)) + : _Base (__e, __f) {} + }; + + template<typename _Tp> + struct _RefFunClos<_ValArray,_Tp> + : _FunBase<valarray<_Tp>, const _Tp&> { + typedef _FunBase<valarray<_Tp>, const _Tp&> _Base; + typedef _Tp value_type; + + _RefFunClos (const valarray<_Tp>& __v, _Tp __f(const _Tp&)) + : _Base (__e, __f) {} + }; + + // + // Unary expression closure. + // + + template<template<class> class _Oper, typename _Arg> + class _UnBase { + public: + typedef _Oper<typename _Arg::value_type> _Op; + typedef typename _Op::result_type value_type; + + _UnBase (const _Arg& __e) : _M_expr(__e) {} + value_type operator[] (size_t) const; + size_t size () const { return _M_expr.size (); } + + private: + const _Arg& _M_expr; + }; + + template<template<class> class _Oper, typename _Arg> + inline typename _UnBase<_Oper, _Arg>::value_type + _UnBase<_Oper, _Arg>::operator[] (size_t __i) const + { return _Op() (_M_expr[__i]); } + + template<template<class> class _Oper, class _Dom> + struct _UnClos<_Oper, _Expr, _Dom> : _UnBase<_Oper, _Dom> { + typedef _Dom _Arg; + typedef _UnBase<_Oper, _Dom> _Base; + typedef typename _Base::value_type value_type; + + _UnClos (const _Arg& __e) : _Base(__e) {} + }; + + template<template<class> class _Oper, typename _Tp> + struct _UnClos<_Oper, _ValArray, _Tp> : _UnBase<_Oper, valarray<_Tp> > { + typedef valarray<_Tp> _Arg; + typedef _UnBase<_Oper, valarray<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _UnClos (const _Arg& __e) : _Base(__e) {} + }; + + + // + // Binary expression closure. + // + + template<template<class> class _Oper, + typename _FirstArg, typename _SecondArg> + class _BinBase { + public: + typedef _Oper<typename _FirstArg::value_type> _Op; + typedef typename _Op::result_type value_type; + + _BinBase (const _FirstArg& __e1, const _SecondArg& __e2) + : _M_expr1 (__e1), _M_expr2 (__e2) {} + value_type operator[] (size_t) const; + size_t size () const { return _M_expr1.size (); } + + private: + const _FirstArg& _M_expr1; + const _SecondArg& _M_expr2; + }; + + template<template<class> class _Oper, + typename _FirstArg, typename _SecondArg> + inline typename _BinBase<_Oper,_FirstArg,_SecondArg>::value_type + _BinBase<_Oper,_FirstArg,_SecondArg>::operator[] (size_t __i) const + { return _Op() (_M_expr1[__i], _M_expr2[__i]); } + + + template<template<class> class _Oper, class _Clos> + class _BinBase2 { + public: + typedef typename _Clos::value_type _Vt; + typedef _Oper<_Vt> _Op; + typedef typename _Op::result_type value_type; + + _BinBase2 (const _Clos& __e, const _Vt& __t) + : _M_expr1 (__e), _M_expr2 (__t) {} + value_type operator[] (size_t) const; + size_t size () const { return _M_expr1.size (); } + + private: + const _Clos& _M_expr1; + const _Vt& _M_expr2; + }; + + template<template<class> class _Oper, class _Clos> + inline typename _BinBase2<_Oper,_Clos>::value_type + _BinBase2<_Oper,_Clos>::operator[] (size_t __i) const + { return _Op() (_M_expr1[__i], _M_expr2); } + + + template<template<class> class _Oper, class _Clos> + class _BinBase1 { + public: + typedef typename _Clos::value_type _Vt; + typedef _Oper<_Vt> _Op; + typedef typename _Op::result_type value_type; + + _BinBase1 (const _Vt& __t, const _Clos& __e) + : _M_expr1 (__t), _M_expr2 (__e) {} + value_type operator[] (size_t) const; + size_t size () const { return _M_expr2.size (); } + + private: + const _Vt& _M_expr1; + const _Clos& _M_expr2; + }; + + template<template<class> class _Oper, class _Clos> + inline typename + _BinBase1<_Oper,_Clos>::value_type + _BinBase1<_Oper,_Clos>:: operator[] (size_t __i) const + { return _Op() (_M_expr1, _M_expr2[__i]); } + + + template<template<class> class _Oper, class _Dom1, class _Dom2> + struct _BinClos<_Oper, _Expr, _Expr, _Dom1, _Dom2> + : _BinBase<_Oper,_Dom1,_Dom2> { + typedef _BinBase<_Oper,_Dom1,_Dom2> _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const _Dom1& __e1, const _Dom2& __e2) : _Base(__e1, __e2) {} + }; + + template<template<class> class _Oper, typename _Tp> + struct _BinClos<_Oper,_ValArray,_ValArray,_Tp,_Tp> + : _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> > { + typedef _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> > _Base; + typedef _Tp value_type; + + _BinClos (const valarray<_Tp>& __v, const valarray<_Tp>& __w) + : _Base (__v, __w) {} + }; + + template<template<class> class _Oper, class _Dom> + struct _BinClos<_Oper,_Expr,_ValArray,_Dom,typename _Dom::value_type> + : _BinBase<_Oper,_Dom,valarray<typename _Dom::value_type> > { + typedef typename _Dom::value_type _Tp; + typedef _BinBase<_Oper,_Dom,valarray<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const _Dom& __e1, const valarray<_Tp>& __e2) + : _Base (__e1, __e2) {} + }; + + template<template<class> class _Oper, class _Dom> + struct _BinClos<_Oper,_ValArray,_Expr,typename _Dom::value_type,_Dom> + : _BinBase<_Oper,valarray<typename _Dom::value_type>,_Dom> { + typedef typename _Dom::value_type _Tp; + typedef _BinBase<_Oper,valarray<_Tp>,_Dom> _Base; + typedef typename _Base::value_type value_type; + + _BinClos (const valarray<_Tp>& __e1, const _Dom& __e2) + : _Base (__e1, __e2) {} + }; + + 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; +// _Meta<_ApplyFunctionWithValue<_Expr>, value_type> +// apply (value_type _M_func (value_type)) const; +// _Meta<_ApplyFunctionWithConstRef<_Expr>, value_type> +// apply (value_type _M_func (const 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 (); } + + // 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 _Dom, typename _Tp> + inline _Tp + min (const _Expr<_Dom,_Tp>& __e) + { + size_t __s = __e.size (); + _Tp __m = __e[0]; + for (size_t __i=1; __i<__s; ++__i) + if (__m > __e[__i]) __m = __e[__i]; + return __m; + } + + template<class _Dom, typename _Tp> + inline _Tp + max (const _Expr<_Dom,_Tp>& __e) + { + size_t __s = __e.size(); + _Tp __m = __e[0]; + for (size_t __i=1; __i<__s; ++__i) + if (__m < __e[__i]) __m = __e[__i]; + return __m; + } + + 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) + _DEFINE_EXPR_RELATIONAL_OPERATOR(||, logical_or) + _DEFINE_EXPR_RELATIONAL_OPERATOR(==, equal_to) + _DEFINE_EXPR_RELATIONAL_OPERATOR(!=, not_equal_to) + _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: |