GNU C++ STL: valarray_after.h Source File

00001 // The template and inlines for the -*- C++ -*- internal _Meta class.
00002 
00003 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
00004 // Free Software Foundation, Inc.
00005 //
00006 // This file is part of the GNU ISO C++ Library.  This library is free
00007 // software; you can redistribute it and/or modify it under the
00008 // terms of the GNU General Public License as published by the
00009 // Free Software Foundation; either version 2, or (at your option)
00010 // any later version.
00011 
00012 // This library is distributed in the hope that it will be useful,
00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015 // GNU General Public License for more details.
00016 
00017 // You should have received a copy of the GNU General Public License along
00018 // with this library; see the file COPYING.  If not, write to the Free
00019 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
00020 // USA.
00021 
00022 // As a special exception, you may use this file as part of a free software
00023 // library without restriction.  Specifically, if other files instantiate
00024 // templates or use macros or inline functions from this file, or you compile
00025 // this file and link it with other files to produce an executable, this
00026 // file does not by itself cause the resulting executable to be covered by
00027 // the GNU General Public License.  This exception does not however
00028 // invalidate any other reasons why the executable file might be covered by
00029 // the GNU General Public License.
00030 
00031 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
00032 
00038 #ifndef _VALARRAY_AFTER_H
00039 #define _VALARRAY_AFTER_H 1
00040 
00041 #pragma GCC system_header
00042 
00043 namespace std
00044 {
00045   //
00046   // gslice_array closure.
00047   //
00048   template<class _Dom>
00049     class _GBase
00050     {
00051     public:
00052       typedef typename _Dom::value_type value_type;
00053       
00054       _GBase (const _Dom& __e, const valarray<size_t>& __i)
00055       : _M_expr (__e), _M_index(__i) {}
00056       
00057       value_type
00058       operator[] (size_t __i) const
00059       { return _M_expr[_M_index[__i]]; }
00060       
00061       size_t
00062       size () const
00063       { return _M_index.size(); }
00064 
00065     private:
00066       const _Dom&         _M_expr;
00067       const valarray<size_t>& _M_index;
00068     };
00069 
00070   template<typename _Tp>
00071     class _GBase<_Array<_Tp> >
00072     {
00073     public:
00074       typedef _Tp value_type;
00075       
00076       _GBase (_Array<_Tp> __a, const valarray<size_t>& __i)
00077       : _M_array (__a), _M_index(__i) {}
00078       
00079       value_type
00080       operator[] (size_t __i) const
00081       { return _M_array._M_data[_M_index[__i]]; }
00082       
00083       size_t
00084       size () const
00085       { return _M_index.size(); }
00086 
00087     private:
00088       const _Array<_Tp>       _M_array;
00089       const valarray<size_t>& _M_index;
00090     };
00091 
00092   template<class _Dom>
00093     struct _GClos<_Expr, _Dom>
00094     : _GBase<_Dom>
00095     {
00096       typedef _GBase<_Dom> _Base;
00097       typedef typename _Base::value_type value_type;
00098       
00099       _GClos (const _Dom& __e, const valarray<size_t>& __i)
00100       : _Base (__e, __i) {}
00101     };
00102 
00103   template<typename _Tp>
00104     struct _GClos<_ValArray, _Tp>
00105     : _GBase<_Array<_Tp> >
00106     {
00107       typedef _GBase<_Array<_Tp> > _Base;
00108       typedef typename _Base::value_type value_type;
00109       
00110       _GClos (_Array<_Tp> __a, const valarray<size_t>& __i)
00111       : _Base (__a, __i) {}
00112     };
00113 
00114   //
00115   // indirect_array closure
00116   //
00117   template<class _Dom>
00118     class _IBase
00119     {
00120     public:
00121       typedef typename _Dom::value_type value_type;
00122 
00123       _IBase (const _Dom& __e, const valarray<size_t>& __i)
00124       : _M_expr (__e), _M_index (__i) {}
00125       
00126       value_type
00127       operator[] (size_t __i) const
00128       { return _M_expr[_M_index[__i]]; }
00129       
00130       size_t
00131       size() const
00132       { return _M_index.size(); }
00133 
00134     private:
00135       const _Dom&         _M_expr;
00136       const valarray<size_t>& _M_index;
00137     };
00138 
00139   template<class _Dom>
00140     struct _IClos<_Expr, _Dom>
00141     : _IBase<_Dom>
00142     {
00143       typedef _IBase<_Dom> _Base;
00144       typedef typename _Base::value_type value_type;
00145       
00146       _IClos (const _Dom& __e, const valarray<size_t>& __i)
00147       : _Base (__e, __i) {}
00148     };
00149 
00150   template<typename _Tp>
00151     struct _IClos<_ValArray, _Tp>
00152     : _IBase<valarray<_Tp> >
00153     {
00154       typedef _IBase<valarray<_Tp> > _Base;
00155       typedef _Tp value_type;
00156       
00157       _IClos (const valarray<_Tp>& __a, const valarray<size_t>& __i)
00158       : _Base (__a, __i) {}
00159     };
00160   
00161   //
00162   // class _Expr
00163   //
00164   template<class _Clos, typename _Tp>
00165     class _Expr
00166     {
00167     public:
00168       typedef _Tp value_type;
00169 
00170       _Expr(const _Clos&);
00171 
00172       const _Clos& operator()() const;
00173 
00174       value_type operator[](size_t) const;
00175       valarray<value_type> operator[](slice) const;
00176       valarray<value_type> operator[](const gslice&) const;
00177       valarray<value_type> operator[](const valarray<bool>&) const;
00178       valarray<value_type> operator[](const valarray<size_t>&) const;
00179 
00180       _Expr<_UnClos<__unary_plus, std::_Expr, _Clos>, value_type>
00181       operator+() const;
00182 
00183       _Expr<_UnClos<__negate, std::_Expr, _Clos>, value_type>
00184       operator-() const;
00185 
00186       _Expr<_UnClos<__bitwise_not, std::_Expr, _Clos>, value_type>
00187       operator~() const;
00188 
00189       _Expr<_UnClos<__logical_not, std::_Expr, _Clos>, bool>
00190       operator!() const;
00191 
00192       size_t size() const;
00193       value_type sum() const;
00194 
00195       valarray<value_type> shift(int) const;
00196       valarray<value_type> cshift(int) const;
00197 
00198       value_type min() const;
00199       value_type max() const;
00200 
00201       valarray<value_type> apply(value_type (*)(const value_type&)) const;
00202       valarray<value_type> apply(value_type (*)(value_type)) const;
00203 
00204     private:
00205       const _Clos _M_closure;
00206     };
00207 
00208   template<class _Clos, typename _Tp>
00209     inline
00210     _Expr<_Clos, _Tp>::_Expr(const _Clos& __c) : _M_closure(__c) {}
00211 
00212   template<class _Clos, typename _Tp>
00213     inline const _Clos&
00214     _Expr<_Clos, _Tp>::operator()() const
00215     { return _M_closure; }
00216 
00217   template<class _Clos, typename _Tp>
00218     inline _Tp
00219     _Expr<_Clos, _Tp>::operator[](size_t __i) const
00220     { return _M_closure[__i]; }
00221 
00222   template<class _Clos, typename _Tp>
00223     inline valarray<_Tp>
00224     _Expr<_Clos, _Tp>::operator[](slice __s) const
00225     {
00226       valarray<_Tp> __v = valarray<_Tp>(*this)[__s];
00227       return __v;
00228     }
00229 
00230   template<class _Clos, typename _Tp>
00231     inline valarray<_Tp>
00232     _Expr<_Clos, _Tp>::operator[](const gslice& __gs) const
00233     {
00234       valarray<_Tp> __v = valarray<_Tp>(*this)[__gs];
00235       return __v;
00236     }
00237 
00238   template<class _Clos, typename _Tp>
00239     inline valarray<_Tp>
00240     _Expr<_Clos, _Tp>::operator[](const valarray<bool>& __m) const
00241     {
00242       valarray<_Tp> __v = valarray<_Tp>(*this)[__m];
00243       return __v;
00244     }
00245 
00246   template<class _Clos, typename _Tp>
00247     inline valarray<_Tp>
00248     _Expr<_Clos, _Tp>::operator[](const valarray<size_t>& __i) const
00249     {
00250       valarray<_Tp> __v = valarray<_Tp>(*this)[__i];
00251       return __v;
00252     }
00253 
00254   template<class _Clos, typename _Tp>
00255     inline size_t
00256     _Expr<_Clos, _Tp>::size() const
00257     { return _M_closure.size(); }
00258 
00259   template<class _Clos, typename _Tp>
00260     inline valarray<_Tp>
00261     _Expr<_Clos, _Tp>::shift(int __n) const
00262     {
00263       valarray<_Tp> __v = valarray<_Tp>(*this).shift(__n);
00264       return __v;
00265     }
00266 
00267   template<class _Clos, typename _Tp>
00268     inline valarray<_Tp>
00269     _Expr<_Clos, _Tp>::cshift(int __n) const
00270     {
00271       valarray<_Tp> __v = valarray<_Tp>(*this).cshift(__n);
00272       return __v;
00273     }
00274 
00275   template<class _Clos, typename _Tp>
00276     inline valarray<_Tp>
00277     _Expr<_Clos, _Tp>::apply(_Tp __f(const _Tp&)) const
00278     {
00279       valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f);
00280       return __v;
00281     }
00282 
00283   template<class _Clos, typename _Tp>
00284     inline valarray<_Tp>
00285     _Expr<_Clos, _Tp>::apply(_Tp __f(_Tp)) const
00286     {
00287       valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f);
00288       return __v;
00289     }
00290 
00291   // XXX: replace this with a more robust summation algorithm.
00292   template<class _Clos, typename _Tp>
00293     inline _Tp
00294     _Expr<_Clos, _Tp>::sum() const
00295     {
00296       size_t __n = _M_closure.size();
00297       if (__n == 0)
00298     return _Tp();
00299       else
00300     {
00301       _Tp __s = _M_closure[--__n];
00302       while (__n != 0)
00303         __s += _M_closure[--__n];
00304       return __s;
00305         }
00306     }
00307 
00308   template<class _Clos, typename _Tp>
00309     inline _Tp
00310     _Expr<_Clos, _Tp>::min() const
00311     { return __valarray_min(_M_closure); }
00312 
00313   template<class _Clos, typename _Tp>
00314     inline _Tp
00315     _Expr<_Clos, _Tp>::max() const
00316     { return __valarray_max(_M_closure); }
00317 
00318   template<class _Dom, typename _Tp>
00319     inline _Expr<_UnClos<__logical_not, _Expr, _Dom>, bool>
00320     _Expr<_Dom, _Tp>::operator!() const
00321     {
00322       typedef _UnClos<__logical_not, std::_Expr, _Dom> _Closure;
00323       return _Expr<_Closure, _Tp>(_Closure(this->_M_closure));
00324     }
00325 
00326 #define _DEFINE_EXPR_UNARY_OPERATOR(_Op, _Name)                           \
00327   template<class _Dom, typename _Tp>                                      \
00328     inline _Expr<_UnClos<_Name, std::_Expr, _Dom>, _Tp>                   \
00329     _Expr<_Dom, _Tp>::operator _Op() const                                \
00330     {                                                                     \
00331       typedef _UnClos<_Name, std::_Expr, _Dom> _Closure;                  \
00332       return _Expr<_Closure, _Tp>(_Closure(this->_M_closure));            \
00333     }
00334 
00335     _DEFINE_EXPR_UNARY_OPERATOR(+, __unary_plus)
00336     _DEFINE_EXPR_UNARY_OPERATOR(-, __negate)
00337     _DEFINE_EXPR_UNARY_OPERATOR(~, __bitwise_not)
00338 
00339 #undef _DEFINE_EXPR_UNARY_OPERATOR
00340 
00341 #define _DEFINE_EXPR_BINARY_OPERATOR(_Op, _Name)                        \
00342   template<class _Dom1, class _Dom2>                    \
00343     inline _Expr<_BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2>,           \
00344            typename __fun<_Name, typename _Dom1::value_type>::result_type> \
00345     operator _Op(const _Expr<_Dom1, typename _Dom1::value_type>& __v,   \
00346              const _Expr<_Dom2, typename _Dom2::value_type>& __w)   \
00347     {                                                                   \
00348       typedef typename _Dom1::value_type _Arg;                          \
00349       typedef typename __fun<_Name, _Arg>::result_type _Value;          \
00350       typedef _BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2> _Closure;     \
00351       return _Expr<_Closure, _Value>(_Closure(__v(), __w()));           \
00352     }                                                                   \
00353                                                                         \
00354   template<class _Dom>                                                  \
00355     inline _Expr<_BinClos<_Name, _Expr, _Constant, _Dom,                \
00356                           typename _Dom::value_type>,                   \
00357              typename __fun<_Name, typename _Dom::value_type>::result_type> \
00358     operator _Op(const _Expr<_Dom, typename _Dom::value_type>& __v,     \
00359                  const typename _Dom::value_type& __t)                  \
00360     {                                                                   \
00361       typedef typename _Dom::value_type _Arg;                           \
00362       typedef typename __fun<_Name, _Arg>::result_type _Value;          \
00363       typedef _BinClos<_Name, _Expr, _Constant, _Dom, _Arg> _Closure;   \
00364       return _Expr<_Closure, _Value>(_Closure(__v(), __t));             \
00365     }                                                                   \
00366                                                                         \
00367   template<class _Dom>                                                  \
00368     inline _Expr<_BinClos<_Name, _Constant, _Expr,                      \
00369                           typename _Dom::value_type, _Dom>,             \
00370              typename __fun<_Name, typename _Dom::value_type>::result_type> \
00371     operator _Op(const typename _Dom::value_type& __t,                  \
00372                  const _Expr<_Dom, typename _Dom::value_type>& __v)     \
00373     {                                                                   \
00374       typedef typename _Dom::value_type _Arg;                           \
00375       typedef typename __fun<_Name, _Arg>::result_type _Value;          \
00376       typedef _BinClos<_Name, _Constant, _Expr, _Arg, _Dom> _Closure;   \
00377       return _Expr<_Closure, _Value>(_Closure(__t, __v()));             \
00378     }                                                                   \
00379                                                                         \
00380   template<class _Dom>                                                  \
00381     inline _Expr<_BinClos<_Name, _Expr, _ValArray,                      \
00382                           _Dom, typename _Dom::value_type>,             \
00383              typename __fun<_Name, typename _Dom::value_type>::result_type> \
00384     operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __e,      \
00385                  const valarray<typename _Dom::value_type>& __v)        \
00386     {                                                                   \
00387       typedef typename _Dom::value_type _Arg;                           \
00388       typedef typename __fun<_Name, _Arg>::result_type _Value;          \
00389       typedef _BinClos<_Name, _Expr, _ValArray, _Dom, _Arg> _Closure;   \
00390       return _Expr<_Closure, _Value>(_Closure(__e(), __v));             \
00391     }                                                                   \
00392                                                                         \
00393   template<class _Dom>                                                  \
00394     inline _Expr<_BinClos<_Name, _ValArray, _Expr,                      \
00395                  typename _Dom::value_type, _Dom>,                      \
00396              typename __fun<_Name, typename _Dom::value_type>::result_type> \
00397     operator _Op(const valarray<typename _Dom::value_type>& __v,        \
00398                  const _Expr<_Dom, typename _Dom::value_type>& __e)     \
00399     {                                                                   \
00400       typedef typename _Dom::value_type _Tp;                            \
00401       typedef typename __fun<_Name, _Tp>::result_type _Value;           \
00402       typedef _BinClos<_Name, _ValArray, _Expr, _Tp, _Dom> _Closure;    \
00403       return _Expr<_Closure, _Value>(_Closure(__v, __e ()));            \
00404     }
00405 
00406     _DEFINE_EXPR_BINARY_OPERATOR(+, __plus)
00407     _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
00408     _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
00409     _DEFINE_EXPR_BINARY_OPERATOR(/, __divides)
00410     _DEFINE_EXPR_BINARY_OPERATOR(%, __modulus)
00411     _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
00412     _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
00413     _DEFINE_EXPR_BINARY_OPERATOR(|, __bitwise_or)
00414     _DEFINE_EXPR_BINARY_OPERATOR(<<, __shift_left)
00415     _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
00416     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
00417     _DEFINE_EXPR_BINARY_OPERATOR(||, __logical_or)
00418     _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
00419     _DEFINE_EXPR_BINARY_OPERATOR(!=, __not_equal_to)
00420     _DEFINE_EXPR_BINARY_OPERATOR(<, __less)
00421     _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
00422     _DEFINE_EXPR_BINARY_OPERATOR(<=, __less_equal)
00423     _DEFINE_EXPR_BINARY_OPERATOR(>=, __greater_equal)
00424 
00425 #undef _DEFINE_EXPR_BINARY_OPERATOR
00426 
00427 #define _DEFINE_EXPR_UNARY_FUNCTION(_Name)                               \
00428   template<class _Dom>                                                   \
00429     inline _Expr<_UnClos<__##_Name, _Expr, _Dom>,                        \
00430                  typename _Dom::value_type>                              \
00431     _Name(const _Expr<_Dom, typename _Dom::value_type>& __e)             \
00432     {                                                                    \
00433       typedef typename _Dom::value_type _Tp;                             \
00434       typedef _UnClos<__##_Name, _Expr, _Dom> _Closure;                  \
00435       return _Expr<_Closure, _Tp>(_Closure(__e()));                      \
00436     }                                                                    \
00437                                                                          \
00438   template<typename _Tp>                                                 \
00439     inline _Expr<_UnClos<__##_Name, _ValArray, _Tp>, _Tp>                \
00440     _Name(const valarray<_Tp>& __v)                                      \
00441     {                                                                    \
00442       typedef _UnClos<__##_Name, _ValArray, _Tp> _Closure;               \
00443       return _Expr<_Closure, _Tp>(_Closure(__v));                        \
00444     }
00445 
00446     _DEFINE_EXPR_UNARY_FUNCTION(abs)
00447     _DEFINE_EXPR_UNARY_FUNCTION(cos)
00448     _DEFINE_EXPR_UNARY_FUNCTION(acos)
00449     _DEFINE_EXPR_UNARY_FUNCTION(cosh)
00450     _DEFINE_EXPR_UNARY_FUNCTION(sin)
00451     _DEFINE_EXPR_UNARY_FUNCTION(asin)
00452     _DEFINE_EXPR_UNARY_FUNCTION(sinh)
00453     _DEFINE_EXPR_UNARY_FUNCTION(tan)
00454     _DEFINE_EXPR_UNARY_FUNCTION(tanh)
00455     _DEFINE_EXPR_UNARY_FUNCTION(atan)
00456     _DEFINE_EXPR_UNARY_FUNCTION(exp)
00457     _DEFINE_EXPR_UNARY_FUNCTION(log)
00458     _DEFINE_EXPR_UNARY_FUNCTION(log10)
00459     _DEFINE_EXPR_UNARY_FUNCTION(sqrt)
00460 
00461 #undef _DEFINE_EXPR_UNARY_FUNCTION
00462 
00463 #define _DEFINE_EXPR_BINARY_FUNCTION(_Fun)                             \
00464   template<class _Dom1, class _Dom2>                                   \
00465     inline _Expr<_BinClos<__##_Fun, _Expr, _Expr, _Dom1, _Dom2>,       \
00466          typename _Dom1::value_type>                           \
00467     _Fun(const _Expr<_Dom1, typename _Dom1::value_type>& __e1,         \
00468       const _Expr<_Dom2, typename _Dom2::value_type>& __e2)        \
00469     {                                                                  \
00470       typedef typename _Dom1::value_type _Tp;                          \
00471       typedef _BinClos<__##_Fun, _Expr, _Expr, _Dom1, _Dom2> _Closure; \
00472       return _Expr<_Closure, _Tp>(_Closure(__e1(), __e2()));           \
00473     }                                                                  \
00474                                                                        \
00475   template<class _Dom>                                                 \
00476     inline _Expr<_BinClos<__##_Fun, _Expr, _ValArray, _Dom,            \
00477               typename _Dom::value_type>,                  \
00478          typename _Dom::value_type>                            \
00479     _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e,            \
00480      const valarray<typename _Dom::value_type>& __v)               \
00481     {                                                                  \
00482       typedef typename _Dom::value_type _Tp;                           \
00483       typedef _BinClos<__##_Fun, _Expr, _ValArray, _Dom, _Tp> _Closure; \
00484       return _Expr<_Closure, _Tp>(_Closure(__e(), __v));               \
00485     }                                                                  \
00486                                                                        \
00487   template<class _Dom>                                                 \
00488     inline _Expr<_BinClos<__##_Fun, _ValArray, _Expr,                  \
00489               typename _Dom::value_type, _Dom>,            \
00490          typename _Dom::value_type>                            \
00491     _Fun(const valarray<typename _Dom::valarray>& __v,                 \
00492      const _Expr<_Dom, typename _Dom::value_type>& __e)            \
00493     {                                                                  \
00494       typedef typename _Dom::value_type _Tp;                           \
00495       typedef _BinClos<__##_Fun, _ValArray, _Expr, _Tp, _Dom> _Closure; \
00496       return _Expr<_Closure, _Tp>(_Closure(__v, __e()));               \
00497     }                                                                  \
00498                                                                        \
00499   template<class _Dom>                                                 \
00500     inline _Expr<_BinClos<__##_Fun, _Expr, _Constant, _Dom,            \
00501               typename _Dom::value_type>,                  \
00502          typename _Dom::value_type>                            \
00503     _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e,            \
00504      const typename _Dom::value_type& __t)                         \
00505     {                                                                  \
00506       typedef typename _Dom::value_type _Tp;                           \
00507       typedef _BinClos<__##_Fun, _Expr, _Constant, _Dom, _Tp> _Closure;\
00508       return _Expr<_Closure, _Tp>(_Closure(__e(), __t));               \
00509     }                                                                  \
00510                                                                        \
00511   template<class _Dom>                                                 \
00512     inline _Expr<_BinClos<__##_Fun, _Constant, _Expr,                  \
00513               typename _Dom::value_type, _Dom>,            \
00514          typename _Dom::value_type>                            \
00515     _Fun(const typename _Dom::value_type& __t,                         \
00516      const _Expr<_Dom, typename _Dom::value_type>& __e)            \
00517     {                                                                  \
00518       typedef typename _Dom::value_type _Tp;                           \
00519       typedef _BinClos<__##_Fun, _Constant, _Expr, _Tp, _Dom> _Closure; \
00520       return _Expr<_Closure, _Tp>(_Closure(__t, __e()));               \
00521     }                                                                  \
00522                                                                        \
00523   template<typename _Tp>                                               \
00524     inline _Expr<_BinClos<__##_Fun, _ValArray, _ValArray, _Tp, _Tp>, _Tp> \
00525     _Fun(const valarray<_Tp>& __v, const valarray<_Tp>& __w)           \
00526     {                                                                  \
00527       typedef _BinClos<__##_Fun, _ValArray, _ValArray, _Tp, _Tp> _Closure; \
00528       return _Expr<_Closure, _Tp>(_Closure(__v, __w));                 \
00529     }                                                                  \
00530                                                                        \
00531   template<typename _Tp>                                               \
00532     inline _Expr<_BinClos<__##_Fun, _ValArray, _Constant, _Tp, _Tp>, _Tp> \
00533     _Fun(const valarray<_Tp>& __v, const _Tp& __t)                     \
00534     {                                                                  \
00535       typedef _BinClos<__##_Fun, _ValArray, _Constant, _Tp, _Tp> _Closure; \
00536       return _Expr<_Closure, _Tp>(_Closure(__v, __t));                 \
00537     }                                                                  \
00538                                        \
00539   template<typename _Tp>                                               \
00540     inline _Expr<_BinClos<__##_Fun, _Constant, _ValArray, _Tp, _Tp>, _Tp> \
00541     _Fun(const _Tp& __t, const valarray<_Tp>& __v)                     \
00542     {                                                                  \
00543       typedef _BinClos<__##_Fun, _Constant, _ValArray, _Tp, _Tp> _Closure; \
00544       return _Expr<_Closure, _Tp>(_Closure(__t, __v));                 \
00545     }
00546 
00547 _DEFINE_EXPR_BINARY_FUNCTION(atan2)
00548 _DEFINE_EXPR_BINARY_FUNCTION(pow)
00549 
00550 #undef _DEFINE_EXPR_BINARY_FUNCTION
00551 
00552 } // std::
00553 
00554 #endif /* _CPP_VALARRAY_AFTER_H */
00555 
00556 // Local Variables:
00557 // mode:c++
00558 // End: