libstdc++-v3/include/bits/valarray_after.h

   1 // The template and inlines for the -*- C++ -*- internal _Meta class.
   2
   3 // Copyright (C) 1997-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // Under Section 7 of GPL version 3, you are granted additional
  17 // permissions described in the GCC Runtime Library Exception, version
  18 // 3.1, as published by the Free Software Foundation.
  19
  20 // You should have received a copy of the GNU General Public License and
  21 // a copy of the GCC Runtime Library Exception along with this program;
  22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 /** @file bits/valarray_after.h
  26  *  This is an internal header file, included by other library headers.
  27  *  Do not attempt to use it directly. @headername{valarray}
  28  */
  29
  30 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
  31
  32 #ifndef _VALARRAY_AFTER_H
  33 #define _VALARRAY_AFTER_H 1
  34
  35 #pragma GCC system_header
  36
  37 namespace std _GLIBCXX_VISIBILITY(default)
  38 {
  39 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  40
  41 namespace __detail
  42 {
  43   //
  44   // gslice_array closure.
  45   //
  46   template<class _Dom>
  47     class _GBase
  48     {
  49     public:
  50       typedef typename _Dom::value_type value_type;
  51
  52       _GBase (const _Dom& __e, const valarray<size_t>& __i)
  53       : _M_expr (__e), _M_index(__i) {}
  54
  55       value_type
  56       operator[] (size_t __i) const
  57       { return _M_expr[_M_index[__i]]; }
  58
  59       size_t
  60       size () const
  61       { return _M_index.size(); }
  62
  63     private:
  64       typename _ValArrayRef<_Dom>::__type       _M_expr;
  65       const valarray<size_t>&                   _M_index;
  66     };
  67
  68   template<typename _Tp>
  69     class _GBase<_Array<_Tp> >
  70     {
  71     public:
  72       typedef _Tp value_type;
  73
  74       _GBase (_Array<_Tp> __a, const valarray<size_t>& __i)
  75       : _M_array (__a), _M_index(__i) {}
  76
  77       value_type
  78       operator[] (size_t __i) const
  79       { return _M_array._M_data[_M_index[__i]]; }
  80
  81       size_t
  82       size () const
  83       { return _M_index.size(); }
  84
  85     private:
  86       const _Array<_Tp>       _M_array;
  87       const valarray<size_t>& _M_index;
  88     };
  89
  90   template<class _Dom>
  91     struct _GClos<_Expr, _Dom>
  92     : _GBase<_Dom>
  93     {
  94       typedef _GBase<_Dom> _Base;
  95       typedef typename _Base::value_type value_type;
  96
  97       _GClos (const _Dom& __e, const valarray<size_t>& __i)
  98       : _Base (__e, __i) {}
  99     };
 100
 101   template<typename _Tp>
 102     struct _GClos<_ValArray, _Tp>
 103     : _GBase<_Array<_Tp> >
 104     {
 105       typedef _GBase<_Array<_Tp> > _Base;
 106       typedef typename _Base::value_type value_type;
 107
 108       _GClos (_Array<_Tp> __a, const valarray<size_t>& __i)
 109       : _Base (__a, __i) {}
 110     };
 111
 112   //
 113   // indirect_array closure
 114   //
 115   template<class _Dom>
 116     class _IBase
 117     {
 118     public:
 119       typedef typename _Dom::value_type value_type;
 120
 121       _IBase (const _Dom& __e, const valarray<size_t>& __i)
 122       : _M_expr (__e), _M_index (__i) {}
 123
 124       value_type
 125       operator[] (size_t __i) const
 126       { return _M_expr[_M_index[__i]]; }
 127
 128       size_t
 129       size() const
 130       { return _M_index.size(); }
 131
 132     private:
 133       typename _ValArrayRef<_Dom>::__type       _M_expr;
 134       const valarray<size_t>&                   _M_index;
 135     };
 136
 137   template<class _Dom>
 138     struct _IClos<_Expr, _Dom>
 139     : _IBase<_Dom>
 140     {
 141       typedef _IBase<_Dom> _Base;
 142       typedef typename _Base::value_type value_type;
 143
 144       _IClos (const _Dom& __e, const valarray<size_t>& __i)
 145       : _Base (__e, __i) {}
 146     };
 147
 148   template<typename _Tp>
 149     struct _IClos<_ValArray, _Tp>
 150     : _IBase<valarray<_Tp> >
 151     {
 152       typedef _IBase<valarray<_Tp> > _Base;
 153       typedef _Tp value_type;
 154
 155       _IClos (const valarray<_Tp>& __a, const valarray<size_t>& __i)
 156       : _Base (__a, __i) {}
 157     };
 158 } // namespace __detail
 159
 160   //
 161   // class _Expr
 162   //
 163   template<class _Clos, typename _Tp>
 164     class _Expr
 165     {
 166     public:
 167       typedef _Tp value_type;
 168
 169       _Expr(const _Clos&);
 170
 171       const _Clos& operator()() const;
 172
 173       value_type operator[](size_t) const;
 174       valarray<value_type> operator[](slice) const;
 175       valarray<value_type> operator[](const gslice&) const;
 176       valarray<value_type> operator[](const valarray<bool>&) const;
 177       valarray<value_type> operator[](const valarray<size_t>&) const;
 178
 179       _Expr<_UnClos<__unary_plus, std::_Expr, _Clos>, value_type>
 180       operator+() const;
 181
 182       _Expr<_UnClos<__negate, std::_Expr, _Clos>, value_type>
 183       operator-() const;
 184
 185       _Expr<_UnClos<__bitwise_not, std::_Expr, _Clos>, value_type>
 186       operator~() const;
 187
 188       _Expr<_UnClos<__logical_not, std::_Expr, _Clos>, bool>
 189       operator!() const;
 190
 191       size_t size() const;
 192       value_type sum() const;
 193
 194       valarray<value_type> shift(int) const;
 195       valarray<value_type> cshift(int) const;
 196
 197       value_type min() const;
 198       value_type max() const;
 199
 200       valarray<value_type> apply(value_type (*)(const value_type&)) const;
 201       valarray<value_type> apply(value_type (*)(value_type)) const;
 202
 203     private:
 204       const _Clos _M_closure;
 205     };
 206
 207   template<class _Clos, typename _Tp>
 208     inline
 209     _Expr<_Clos, _Tp>::_Expr(const _Clos& __c) : _M_closure(__c) {}
 210
 211   template<class _Clos, typename _Tp>
 212     inline const _Clos&
 213     _Expr<_Clos, _Tp>::operator()() const
 214     { return _M_closure; }
 215
 216   template<class _Clos, typename _Tp>
 217     inline _Tp
 218     _Expr<_Clos, _Tp>::operator[](size_t __i) const
 219     { return _M_closure[__i]; }
 220
 221   template<class _Clos, typename _Tp>
 222     inline valarray<_Tp>
 223     _Expr<_Clos, _Tp>::operator[](slice __s) const
 224     {
 225       valarray<_Tp> __v = valarray<_Tp>(*this)[__s];
 226       return __v;
 227     }
 228
 229   template<class _Clos, typename _Tp>
 230     inline valarray<_Tp>
 231     _Expr<_Clos, _Tp>::operator[](const gslice& __gs) const
 232     {
 233       valarray<_Tp> __v = valarray<_Tp>(*this)[__gs];
 234       return __v;
 235     }
 236
 237   template<class _Clos, typename _Tp>
 238     inline valarray<_Tp>
 239     _Expr<_Clos, _Tp>::operator[](const valarray<bool>& __m) const
 240     {
 241       valarray<_Tp> __v = valarray<_Tp>(*this)[__m];
 242       return __v;
 243     }
 244
 245   template<class _Clos, typename _Tp>
 246     inline valarray<_Tp>
 247     _Expr<_Clos, _Tp>::operator[](const valarray<size_t>& __i) const
 248     {
 249       valarray<_Tp> __v = valarray<_Tp>(*this)[__i];
 250       return __v;
 251     }
 252
 253   template<class _Clos, typename _Tp>
 254     inline size_t
 255     _Expr<_Clos, _Tp>::size() const
 256     { return _M_closure.size(); }
 257
 258   template<class _Clos, typename _Tp>
 259     inline valarray<_Tp>
 260     _Expr<_Clos, _Tp>::shift(int __n) const
 261     {
 262       valarray<_Tp> __v = valarray<_Tp>(*this).shift(__n);
 263       return __v;
 264     }
 265
 266   template<class _Clos, typename _Tp>
 267     inline valarray<_Tp>
 268     _Expr<_Clos, _Tp>::cshift(int __n) const
 269     {
 270       valarray<_Tp> __v = valarray<_Tp>(*this).cshift(__n);
 271       return __v;
 272     }
 273
 274   template<class _Clos, typename _Tp>
 275     inline valarray<_Tp>
 276     _Expr<_Clos, _Tp>::apply(_Tp __f(const _Tp&)) const
 277     {
 278       valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f);
 279       return __v;
 280     }
 281
 282   template<class _Clos, typename _Tp>
 283     inline valarray<_Tp>
 284     _Expr<_Clos, _Tp>::apply(_Tp __f(_Tp)) const
 285     {
 286       valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f);
 287       return __v;
 288     }
 289
 290   // XXX: replace this with a more robust summation algorithm.
 291   template<class _Clos, typename _Tp>
 292     inline _Tp
 293     _Expr<_Clos, _Tp>::sum() const
 294     {
 295       size_t __n = _M_closure.size();
 296       if (__n == 0)
 297         return _Tp();
 298       else
 299         {
 300           _Tp __s = _M_closure[--__n];
 301           while (__n != 0)
 302             __s += _M_closure[--__n];
 303           return __s;
 304         }
 305     }
 306
 307   template<class _Clos, typename _Tp>
 308     inline _Tp
 309     _Expr<_Clos, _Tp>::min() const
 310     { return __valarray_min(_M_closure); }
 311
 312   template<class _Clos, typename _Tp>
 313     inline _Tp
 314     _Expr<_Clos, _Tp>::max() const
 315     { return __valarray_max(_M_closure); }
 316
 317   template<class _Dom, typename _Tp>
 318     inline _Expr<_UnClos<__logical_not, _Expr, _Dom>, bool>
 319     _Expr<_Dom, _Tp>::operator!() const
 320     {
 321       typedef _UnClos<__logical_not, std::_Expr, _Dom> _Closure;
 322       return _Expr<_Closure, bool>(_Closure(this->_M_closure));
 323     }
 324
 325 #define _DEFINE_EXPR_UNARY_OPERATOR(_Op, _Name)                           \
 326   template<class _Dom, typename _Tp>                                      \
 327     inline _Expr<_UnClos<_Name, std::_Expr, _Dom>, _Tp>                   \
 328     _Expr<_Dom, _Tp>::operator _Op() const                                \
 329     {                                                                     \
 330       typedef _UnClos<_Name, std::_Expr, _Dom> _Closure;                  \
 331       return _Expr<_Closure, _Tp>(_Closure(this->_M_closure));            \
 332     }
 333
 334     _DEFINE_EXPR_UNARY_OPERATOR(+, struct std::__unary_plus)
 335     _DEFINE_EXPR_UNARY_OPERATOR(-, struct std::__negate)
 336     _DEFINE_EXPR_UNARY_OPERATOR(~, struct std::__bitwise_not)
 337
 338 #undef _DEFINE_EXPR_UNARY_OPERATOR
 339
 340 #define _DEFINE_EXPR_BINARY_OPERATOR(_Op, _Name)                        \
 341   template<class _Dom1, class _Dom2>                                    \
 342     inline _Expr<_BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2>,           \
 343            typename __fun<_Name, typename _Dom1::value_type>::result_type> \
 344     operator _Op(const _Expr<_Dom1, typename _Dom1::value_type>& __v,   \
 345                  const _Expr<_Dom2, typename _Dom2::value_type>& __w)   \
 346     {                                                                   \
 347       typedef typename _Dom1::value_type _Arg;                          \
 348       typedef typename __fun<_Name, _Arg>::result_type _Value;          \
 349       typedef _BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2> _Closure;     \
 350       return _Expr<_Closure, _Value>(_Closure(__v(), __w()));           \
 351     }                                                                   \
 352                                                                         \
 353   template<class _Dom>                                                  \
 354     inline _Expr<_BinClos<_Name, _Expr, _Constant, _Dom,                \
 355                           typename _Dom::value_type>,                   \
 356              typename __fun<_Name, typename _Dom::value_type>::result_type> \
 357     operator _Op(const _Expr<_Dom, typename _Dom::value_type>& __v,     \
 358                  const typename _Dom::value_type& __t)                  \
 359     {                                                                   \
 360       typedef typename _Dom::value_type _Arg;                           \
 361       typedef typename __fun<_Name, _Arg>::result_type _Value;          \
 362       typedef _BinClos<_Name, _Expr, _Constant, _Dom, _Arg> _Closure;   \
 363       return _Expr<_Closure, _Value>(_Closure(__v(), __t));             \
 364     }                                                                   \
 365                                                                         \
 366   template<class _Dom>                                                  \
 367     inline _Expr<_BinClos<_Name, _Constant, _Expr,                      \
 368                           typename _Dom::value_type, _Dom>,             \
 369              typename __fun<_Name, typename _Dom::value_type>::result_type> \
 370     operator _Op(const typename _Dom::value_type& __t,                  \
 371                  const _Expr<_Dom, typename _Dom::value_type>& __v)     \
 372     {                                                                   \
 373       typedef typename _Dom::value_type _Arg;                           \
 374       typedef typename __fun<_Name, _Arg>::result_type _Value;          \
 375       typedef _BinClos<_Name, _Constant, _Expr, _Arg, _Dom> _Closure;   \
 376       return _Expr<_Closure, _Value>(_Closure(__t, __v()));             \
 377     }                                                                   \
 378                                                                         \
 379   template<class _Dom>                                                  \
 380     inline _Expr<_BinClos<_Name, _Expr, _ValArray,                      \
 381                           _Dom, typename _Dom::value_type>,             \
 382              typename __fun<_Name, typename _Dom::value_type>::result_type> \
 383     operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __e,      \
 384                  const valarray<typename _Dom::value_type>& __v)        \
 385     {                                                                   \
 386       typedef typename _Dom::value_type _Arg;                           \
 387       typedef typename __fun<_Name, _Arg>::result_type _Value;          \
 388       typedef _BinClos<_Name, _Expr, _ValArray, _Dom, _Arg> _Closure;   \
 389       return _Expr<_Closure, _Value>(_Closure(__e(), __v));             \
 390     }                                                                   \
 391                                                                         \
 392   template<class _Dom>                                                  \
 393     inline _Expr<_BinClos<_Name, _ValArray, _Expr,                      \
 394                  typename _Dom::value_type, _Dom>,                      \
 395              typename __fun<_Name, typename _Dom::value_type>::result_type> \
 396     operator _Op(const valarray<typename _Dom::value_type>& __v,        \
 397                  const _Expr<_Dom, typename _Dom::value_type>& __e)     \
 398     {                                                                   \
 399       typedef typename _Dom::value_type _Tp;                            \
 400       typedef typename __fun<_Name, _Tp>::result_type _Value;           \
 401       typedef _BinClos<_Name, _ValArray, _Expr, _Tp, _Dom> _Closure;    \
 402       return _Expr<_Closure, _Value>(_Closure(__v, __e ()));            \
 403     }
 404
 405     _DEFINE_EXPR_BINARY_OPERATOR(+, struct std::__plus)
 406     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
 407     _DEFINE_EXPR_BINARY_OPERATOR(*, struct std::__multiplies)
 408     _DEFINE_EXPR_BINARY_OPERATOR(/, struct std::__divides)
 409     _DEFINE_EXPR_BINARY_OPERATOR(%, struct std::__modulus)
 410     _DEFINE_EXPR_BINARY_OPERATOR(^, struct std::__bitwise_xor)
 411     _DEFINE_EXPR_BINARY_OPERATOR(&, struct std::__bitwise_and)
 412     _DEFINE_EXPR_BINARY_OPERATOR(|, struct std::__bitwise_or)
 413     _DEFINE_EXPR_BINARY_OPERATOR(<<, struct std::__shift_left)
 414     _DEFINE_EXPR_BINARY_OPERATOR(>>, struct std::__shift_right)
 415     _DEFINE_EXPR_BINARY_OPERATOR(&&, struct std::__logical_and)
 416     _DEFINE_EXPR_BINARY_OPERATOR(||, struct std::__logical_or)
 417     _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to)
 418     _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to)
 419     _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
 420     _DEFINE_EXPR_BINARY_OPERATOR(>, struct std::__greater)
 421     _DEFINE_EXPR_BINARY_OPERATOR(<=, struct std::__less_equal)
 422     _DEFINE_EXPR_BINARY_OPERATOR(>=, struct std::__greater_equal)
 423
 424 #undef _DEFINE_EXPR_BINARY_OPERATOR
 425
 426 #define _DEFINE_EXPR_UNARY_FUNCTION(_Name, _UName)                       \
 427   template<class _Dom>                                                   \
 428     inline _Expr<_UnClos<_UName, _Expr, _Dom>,                           \
 429                  typename _Dom::value_type>                              \
 430     _Name(const _Expr<_Dom, typename _Dom::value_type>& __e)             \
 431     {                                                                    \
 432       typedef typename _Dom::value_type _Tp;                             \
 433       typedef _UnClos<_UName, _Expr, _Dom> _Closure;                     \
 434       return _Expr<_Closure, _Tp>(_Closure(__e()));                      \
 435     }                                                                    \
 436                                                                          \
 437   template<typename _Tp>                                                 \
 438     inline _Expr<_UnClos<_UName, _ValArray, _Tp>, _Tp>                   \
 439     _Name(const valarray<_Tp>& __v)                                      \
 440     {                                                                    \
 441       typedef _UnClos<_UName, _ValArray, _Tp> _Closure;                  \
 442       return _Expr<_Closure, _Tp>(_Closure(__v));                        \
 443     }
 444
 445     _DEFINE_EXPR_UNARY_FUNCTION(abs, struct std::_Abs)
 446     _DEFINE_EXPR_UNARY_FUNCTION(cos, struct std::_Cos)
 447     _DEFINE_EXPR_UNARY_FUNCTION(acos, struct std::_Acos)
 448     _DEFINE_EXPR_UNARY_FUNCTION(cosh, struct std::_Cosh)
 449     _DEFINE_EXPR_UNARY_FUNCTION(sin, struct std::_Sin)
 450     _DEFINE_EXPR_UNARY_FUNCTION(asin, struct std::_Asin)
 451     _DEFINE_EXPR_UNARY_FUNCTION(sinh, struct std::_Sinh)
 452     _DEFINE_EXPR_UNARY_FUNCTION(tan, struct std::_Tan)
 453     _DEFINE_EXPR_UNARY_FUNCTION(tanh, struct std::_Tanh)
 454     _DEFINE_EXPR_UNARY_FUNCTION(atan, struct std::_Atan)
 455     _DEFINE_EXPR_UNARY_FUNCTION(exp, struct std::_Exp)
 456     _DEFINE_EXPR_UNARY_FUNCTION(log, struct std::_Log)
 457     _DEFINE_EXPR_UNARY_FUNCTION(log10, struct std::_Log10)
 458     _DEFINE_EXPR_UNARY_FUNCTION(sqrt, struct std::_Sqrt)
 459
 460 #undef _DEFINE_EXPR_UNARY_FUNCTION
 461
 462 #define _DEFINE_EXPR_BINARY_FUNCTION(_Fun, _UFun)                      \
 463   template<class _Dom1, class _Dom2>                                   \
 464     inline _Expr<_BinClos<_UFun, _Expr, _Expr, _Dom1, _Dom2>,          \
 465                  typename _Dom1::value_type>                           \
 466     _Fun(const _Expr<_Dom1, typename _Dom1::value_type>& __e1,         \
 467          const _Expr<_Dom2, typename _Dom2::value_type>& __e2)         \
 468     {                                                                  \
 469       typedef typename _Dom1::value_type _Tp;                          \
 470       typedef _BinClos<_UFun, _Expr, _Expr, _Dom1, _Dom2> _Closure;    \
 471       return _Expr<_Closure, _Tp>(_Closure(__e1(), __e2()));           \
 472     }                                                                  \
 473                                                                        \
 474   template<class _Dom>                                                 \
 475     inline _Expr<_BinClos<_UFun, _Expr, _ValArray, _Dom,               \
 476                           typename _Dom::value_type>,                  \
 477                  typename _Dom::value_type>                            \
 478     _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e,            \
 479          const valarray<typename _Dom::value_type>& __v)               \
 480     {                                                                  \
 481       typedef typename _Dom::value_type _Tp;                           \
 482       typedef _BinClos<_UFun, _Expr, _ValArray, _Dom, _Tp> _Closure;   \
 483       return _Expr<_Closure, _Tp>(_Closure(__e(), __v));               \
 484     }                                                                  \
 485                                                                        \
 486   template<class _Dom>                                                 \
 487     inline _Expr<_BinClos<_UFun, _ValArray, _Expr,                     \
 488                           typename _Dom::value_type, _Dom>,            \
 489                  typename _Dom::value_type>                            \
 490     _Fun(const valarray<typename _Dom::valarray>& __v,                 \
 491          const _Expr<_Dom, typename _Dom::value_type>& __e)            \
 492     {                                                                  \
 493       typedef typename _Dom::value_type _Tp;                           \
 494       typedef _BinClos<_UFun, _ValArray, _Expr, _Tp, _Dom> _Closure;   \
 495       return _Expr<_Closure, _Tp>(_Closure(__v, __e()));               \
 496     }                                                                  \
 497                                                                        \
 498   template<class _Dom>                                                 \
 499     inline _Expr<_BinClos<_UFun, _Expr, _Constant, _Dom,               \
 500                           typename _Dom::value_type>,                  \
 501                  typename _Dom::value_type>                            \
 502     _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e,            \
 503          const typename _Dom::value_type& __t)                         \
 504     {                                                                  \
 505       typedef typename _Dom::value_type _Tp;                           \
 506       typedef _BinClos<_UFun, _Expr, _Constant, _Dom, _Tp> _Closure;   \
 507       return _Expr<_Closure, _Tp>(_Closure(__e(), __t));               \
 508     }                                                                  \
 509                                                                        \
 510   template<class _Dom>                                                 \
 511     inline _Expr<_BinClos<_UFun, _Constant, _Expr,                     \
 512                           typename _Dom::value_type, _Dom>,            \
 513                  typename _Dom::value_type>                            \
 514     _Fun(const typename _Dom::value_type& __t,                         \
 515          const _Expr<_Dom, typename _Dom::value_type>& __e)            \
 516     {                                                                  \
 517       typedef typename _Dom::value_type _Tp;                           \
 518       typedef _BinClos<_UFun, _Constant, _Expr, _Tp, _Dom> _Closure;   \
 519       return _Expr<_Closure, _Tp>(_Closure(__t, __e()));               \
 520     }                                                                  \
 521                                                                        \
 522   template<typename _Tp>                                               \
 523     inline _Expr<_BinClos<_UFun, _ValArray, _ValArray, _Tp, _Tp>, _Tp> \
 524     _Fun(const valarray<_Tp>& __v, const valarray<_Tp>& __w)           \
 525     {                                                                  \
 526       typedef _BinClos<_UFun, _ValArray, _ValArray, _Tp, _Tp> _Closure;\
 527       return _Expr<_Closure, _Tp>(_Closure(__v, __w));                 \
 528     }                                                                  \
 529                                                                        \
 530   template<typename _Tp>                                               \
 531     inline _Expr<_BinClos<_UFun, _ValArray, _Constant, _Tp, _Tp>, _Tp> \
 532     _Fun(const valarray<_Tp>& __v,                                     \
 533          const typename valarray<_Tp>::value_type& __t)                \
 534     {                                                                  \
 535       typedef _BinClos<_UFun, _ValArray, _Constant, _Tp, _Tp> _Closure;\
 536       return _Expr<_Closure, _Tp>(_Closure(__v, __t));                 \
 537     }                                                                  \
 538                                                                        \
 539   template<typename _Tp>                                               \
 540     inline _Expr<_BinClos<_UFun, _Constant, _ValArray, _Tp, _Tp>, _Tp> \
 541     _Fun(const typename valarray<_Tp>::value_type& __t,                \
 542          const valarray<_Tp>& __v)                                     \
 543     {                                                                  \
 544       typedef _BinClos<_UFun, _Constant, _ValArray, _Tp, _Tp> _Closure;\
 545       return _Expr<_Closure, _Tp>(_Closure(__t, __v));                 \
 546     }
 547
 548 _DEFINE_EXPR_BINARY_FUNCTION(atan2, struct std::_Atan2)
 549 _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
 550
 551 #undef _DEFINE_EXPR_BINARY_FUNCTION
 552
 553 _GLIBCXX_END_NAMESPACE_VERSION
 554 } // namespace
 555
 556 #endif /* _CPP_VALARRAY_AFTER_H */