// The template and inlines for the -*- C++ -*- internal _Meta class. // Copyright (C) 1997-1999 Cygnus Solutions // // 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 // // 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 (__v, __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 { _Tp __s(_Tp()); size_t __n (_M_closure.size ()); for (size_t __i=0; __i<__n; ++__i) __s += _M_closure[__i]; 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 #endif // _CPP_VALARRAY_META_H // Local Variables: // mode:c++ // End: