libstdc++-v3/include/std/valarray

   1 // The template and inlines for the -*- C++ -*- valarray class.
   2
   3 // Copyright (C) 1997-1999, 2000, 2001 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 2, 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 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
  31
  32 /** @file std_valarray.h
  33  *  This is an internal header file, included by other library headers.
  34  *  You should not attempt to use it directly.
  35  */
  36
  37 #ifndef _CPP_VALARRAY
  38 #define _CPP_VALARRAY 1
  39
  40 #pragma GCC system_header
  41
  42 #include <bits/c++config.h>
  43 #include <cstddef>
  44 #include <cmath>
  45 #include <cstdlib>
  46 #include <numeric>
  47 #include <functional>
  48 #include <algorithm>
  49
  50 namespace std
  51 {
  52     template<class _Clos, typename _Tp> class _Expr;
  53
  54     template<typename _Tp1, typename _Tp2> class _ValArray;
  55
  56     template<template<class> class _Oper,
  57         template<class, class> class _Meta, class _Dom> struct _UnClos;
  58
  59     template<template<class> class _Oper,
  60         template<class, class> class _Meta1,
  61         template<class, class> class _Meta2,
  62         class _Dom1, class _Dom2> class _BinClos;
  63
  64     template<template<class, class> class _Meta, class _Dom> class _SClos;
  65
  66     template<template<class, class> class _Meta, class _Dom> class _GClos;
  67
  68     template<template<class, class> class _Meta, class _Dom> class _IClos;
  69
  70     template<template<class, class> class _Meta, class _Dom> class _ValFunClos;
  71
  72     template<template<class, class> class _Meta, class _Dom> class _RefFunClos;
  73
  74     template<class _Tp> struct _Unary_plus;
  75     template<class _Tp> struct _Bitwise_and;
  76     template<class _Tp> struct _Bitwise_or;
  77     template<class _Tp> struct _Bitwise_xor;
  78     template<class _Tp> struct _Bitwise_not;
  79     template<class _Tp> struct _Shift_left;
  80     template<class _Tp> struct _Shift_right;
  81
  82     template<class _Tp> class valarray;   // An array of type _Tp
  83     class slice;                          // BLAS-like slice out of an array
  84     template<class _Tp> class slice_array;
  85     class gslice;                         // generalized slice out of an array
  86     template<class _Tp> class gslice_array;
  87     template<class _Tp> class mask_array;     // masked array
  88     template<class _Tp> class indirect_array; // indirected array
  89
  90 } // namespace std
  91
  92 #include <bits/valarray_array.h>
  93 #include <bits/valarray_meta.h>
  94
  95 namespace std
  96 {
  97   template<class _Tp> class valarray
  98   {
  99   public:
 100       typedef _Tp value_type;
 101
 102       // _lib.valarray.cons_ construct/destroy:
 103       valarray();
 104       explicit valarray(size_t);
 105       valarray(const _Tp&, size_t);
 106       valarray(const _Tp* __restrict__, size_t);
 107       valarray(const valarray&);
 108       valarray(const slice_array<_Tp>&);
 109       valarray(const gslice_array<_Tp>&);
 110       valarray(const mask_array<_Tp>&);
 111       valarray(const indirect_array<_Tp>&);
 112       template<class _Dom>
 113       valarray(const _Expr<_Dom,_Tp>& __e);
 114      ~valarray();
 115
 116       // _lib.valarray.assign_ assignment:
 117       valarray<_Tp>& operator=(const valarray<_Tp>&);
 118       valarray<_Tp>& operator=(const _Tp&);
 119       valarray<_Tp>& operator=(const slice_array<_Tp>&);
 120       valarray<_Tp>& operator=(const gslice_array<_Tp>&);
 121       valarray<_Tp>& operator=(const mask_array<_Tp>&);
 122       valarray<_Tp>& operator=(const indirect_array<_Tp>&);
 123
 124       template<class _Dom> valarray<_Tp>&
 125         operator= (const _Expr<_Dom,_Tp>&);
 126
 127       // _lib.valarray.access_ element access:
 128       // XXX: LWG to be resolved.
 129       const _Tp&                 operator[](size_t) const;
 130       _Tp&                operator[](size_t);
 131       // _lib.valarray.sub_ subset operations:
 132       _Expr<_SClos<_ValArray,_Tp>, _Tp> operator[](slice) const;
 133       slice_array<_Tp>    operator[](slice);
 134       _Expr<_GClos<_ValArray,_Tp>, _Tp> operator[](const gslice&) const;
 135       gslice_array<_Tp>   operator[](const gslice&);
 136       valarray<_Tp>              operator[](const valarray<bool>&) const;
 137       mask_array<_Tp>     operator[](const valarray<bool>&);
 138       _Expr<_IClos<_ValArray, _Tp>, _Tp>
 139         operator[](const valarray<size_t>&) const;
 140       indirect_array<_Tp> operator[](const valarray<size_t>&);
 141
 142       // _lib.valarray.unary_ unary operators:
 143       _Expr<_UnClos<_Unary_plus,_ValArray,_Tp>,_Tp>  operator+ () const;
 144       _Expr<_UnClos<negate,_ValArray,_Tp>,_Tp> operator- () const;
 145       _Expr<_UnClos<_Bitwise_not,_ValArray,_Tp>,_Tp> operator~ () const;
 146       _Expr<_UnClos<logical_not,_ValArray,_Tp>,bool> operator! () const;
 147
 148       // _lib.valarray.cassign_ computed assignment:
 149       valarray<_Tp>& operator*= (const _Tp&);
 150       valarray<_Tp>& operator/= (const _Tp&);
 151       valarray<_Tp>& operator%= (const _Tp&);
 152       valarray<_Tp>& operator+= (const _Tp&);
 153       valarray<_Tp>& operator-= (const _Tp&);
 154       valarray<_Tp>& operator^= (const _Tp&);
 155       valarray<_Tp>& operator&= (const _Tp&);
 156       valarray<_Tp>& operator|= (const _Tp&);
 157       valarray<_Tp>& operator<<=(const _Tp&);
 158       valarray<_Tp>& operator>>=(const _Tp&);
 159       valarray<_Tp>& operator*= (const valarray<_Tp>&);
 160       valarray<_Tp>& operator/= (const valarray<_Tp>&);
 161       valarray<_Tp>& operator%= (const valarray<_Tp>&);
 162       valarray<_Tp>& operator+= (const valarray<_Tp>&);
 163       valarray<_Tp>& operator-= (const valarray<_Tp>&);
 164       valarray<_Tp>& operator^= (const valarray<_Tp>&);
 165       valarray<_Tp>& operator|= (const valarray<_Tp>&);
 166       valarray<_Tp>& operator&= (const valarray<_Tp>&);
 167       valarray<_Tp>& operator<<=(const valarray<_Tp>&);
 168       valarray<_Tp>& operator>>=(const valarray<_Tp>&);
 169
 170       template<class _Dom>
 171         valarray<_Tp>& operator*= (const _Expr<_Dom,_Tp>&);
 172       template<class _Dom>
 173         valarray<_Tp>& operator/= (const _Expr<_Dom,_Tp>&);
 174       template<class _Dom>
 175         valarray<_Tp>& operator%= (const _Expr<_Dom,_Tp>&);
 176       template<class _Dom>
 177         valarray<_Tp>& operator+= (const _Expr<_Dom,_Tp>&);
 178       template<class _Dom>
 179         valarray<_Tp>& operator-= (const _Expr<_Dom,_Tp>&);
 180       template<class _Dom>
 181         valarray<_Tp>& operator^= (const _Expr<_Dom,_Tp>&);
 182       template<class _Dom>
 183         valarray<_Tp>& operator|= (const _Expr<_Dom,_Tp>&);
 184       template<class _Dom>
 185         valarray<_Tp>& operator&= (const _Expr<_Dom,_Tp>&);
 186       template<class _Dom>
 187         valarray<_Tp>& operator<<=(const _Expr<_Dom,_Tp>&);
 188       template<class _Dom>
 189         valarray<_Tp>& operator>>=(const _Expr<_Dom,_Tp>&);
 190
 191
 192       // _lib.valarray.members_ member functions:
 193       size_t size() const;
 194       _Tp    sum() const;
 195       _Tp    min() const;
 196       _Tp    max() const;
 197
 198 //           // FIXME: Extension
 199 //       _Tp    product () const;
 200
 201       valarray<_Tp> shift (int) const;
 202       valarray<_Tp> cshift(int) const;
 203       _Expr<_ValFunClos<_ValArray,_Tp>,_Tp> apply(_Tp func(_Tp)) const;
 204       _Expr<_RefFunClos<_ValArray,_Tp>,_Tp> apply(_Tp func(const _Tp&)) const;
 205       void resize(size_t __size, _Tp __c = _Tp());
 206
 207   private:
 208       size_t _M_size;
 209       _Tp* __restrict__ _M_data;
 210
 211       friend class _Array<_Tp>;
 212   };
 213
 214
 215   template<typename _Tp> struct _Unary_plus : unary_function<_Tp,_Tp> {
 216       _Tp operator() (const _Tp& __t) const { return __t; }
 217   };
 218
 219   template<typename _Tp> struct _Bitwise_and : binary_function<_Tp,_Tp,_Tp> {
 220       _Tp operator() (_Tp __x, _Tp __y) const { return __x & __y; }
 221   };
 222
 223   template<typename _Tp> struct _Bitwise_or : binary_function<_Tp,_Tp,_Tp> {
 224       _Tp operator() (_Tp __x, _Tp __y) const { return __x | __y; }
 225   };
 226
 227   template<typename _Tp> struct _Bitwise_xor : binary_function<_Tp,_Tp,_Tp> {
 228       _Tp operator() (_Tp __x, _Tp __y) const { return __x ^ __y; }
 229   };
 230
 231   template<typename _Tp> struct _Bitwise_not : unary_function<_Tp,_Tp> {
 232       _Tp operator() (_Tp __t) const { return ~__t; }
 233   };
 234
 235   template<typename _Tp> struct _Shift_left : unary_function<_Tp,_Tp> {
 236       _Tp operator() (_Tp __x, _Tp __y) const { return __x << __y; }
 237   };
 238
 239   template<typename _Tp> struct _Shift_right : unary_function<_Tp,_Tp> {
 240       _Tp operator() (_Tp __x, _Tp __y) const { return __x >> __y; }
 241   };
 242
 243
 244   template<typename _Tp>
 245   inline const _Tp&
 246   valarray<_Tp>::operator[] (size_t __i) const
 247   { return _M_data[__i]; }
 248
 249   template<typename _Tp>
 250   inline _Tp&
 251   valarray<_Tp>::operator[] (size_t __i)
 252   { return _M_data[__i]; }
 253
 254 } // std::
 255
 256 #include <bits/slice.h>
 257 #include <bits/slice_array.h>
 258 #include <bits/gslice.h>
 259 #include <bits/gslice_array.h>
 260 #include <bits/mask_array.h>
 261 #include <bits/indirect_array.h>
 262
 263 namespace std
 264 {
 265   template<typename _Tp>
 266   inline valarray<_Tp>::valarray () : _M_size (0), _M_data (0) {}
 267
 268   template<typename _Tp>
 269   inline valarray<_Tp>::valarray (size_t __n)
 270       : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
 271   { __valarray_default_construct(_M_data, _M_data + __n); }
 272
 273   template<typename _Tp>
 274   inline valarray<_Tp>::valarray (const _Tp& __t, size_t __n)
 275     : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
 276   { __valarray_fill_construct (_M_data, _M_data + __n, __t); }
 277
 278   template<typename _Tp>
 279   inline valarray<_Tp>::valarray (const _Tp* __restrict__ __p, size_t __n)
 280     : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
 281   { __valarray_copy_construct (__p, __p + __n, _M_data); }
 282
 283   template<typename _Tp>
 284   inline valarray<_Tp>::valarray (const valarray<_Tp>& __v)
 285     : _M_size(__v._M_size), _M_data(__valarray_get_storage<_Tp>(__v._M_size))
 286   { __valarray_copy_construct (__v._M_data, __v._M_data + _M_size, _M_data); }
 287
 288   template<typename _Tp>
 289   inline valarray<_Tp>::valarray (const slice_array<_Tp>& __sa)
 290     : _M_size(__sa._M_sz), _M_data(__valarray_get_storage<_Tp>(__sa._M_sz))
 291   {
 292     __valarray_copy
 293       (__sa._M_array, __sa._M_sz, __sa._M_stride, _Array<_Tp>(_M_data));
 294   }
 295
 296   template<typename _Tp>
 297   inline valarray<_Tp>::valarray (const gslice_array<_Tp>& __ga)
 298     : _M_size(__ga._M_index.size()),
 299       _M_data(__valarray_get_storage<_Tp>(_M_size))
 300   {
 301     __valarray_copy
 302       (__ga._M_array, _Array<size_t>(__ga._M_index),
 303        _Array<_Tp>(_M_data), _M_size);
 304   }
 305
 306   template<typename _Tp>
 307   inline valarray<_Tp>::valarray (const mask_array<_Tp>& __ma)
 308     : _M_size(__ma._M_sz), _M_data(__valarray_get_storage<_Tp>(__ma._M_sz))
 309   {
 310     __valarray_copy
 311       (__ma._M_array, __ma._M_mask, _Array<_Tp>(_M_data), _M_size);
 312   }
 313
 314   template<typename _Tp>
 315   inline valarray<_Tp>::valarray (const indirect_array<_Tp>& __ia)
 316     : _M_size(__ia._M_sz), _M_data(__valarray_get_storage<_Tp>(__ia._M_sz))
 317   {
 318     __valarray_copy
 319       (__ia._M_array, __ia._M_index, _Array<_Tp>(_M_data), _M_size);
 320   }
 321
 322   template<typename _Tp> template<class _Dom>
 323   inline valarray<_Tp>::valarray (const _Expr<_Dom, _Tp>& __e)
 324     : _M_size(__e.size ()), _M_data(__valarray_get_storage<_Tp>(_M_size))
 325   { __valarray_copy (__e, _M_size, _Array<_Tp>(_M_data)); }
 326
 327   template<typename _Tp>
 328   inline valarray<_Tp>::~valarray ()
 329   {
 330       __valarray_destroy_elements(_M_data, _M_data + _M_size);
 331       __valarray_release_memory(_M_data);
 332   }
 333
 334   template<typename _Tp>
 335   inline valarray<_Tp>&
 336   valarray<_Tp>::operator= (const valarray<_Tp>& __v)
 337   {
 338       __valarray_copy(__v._M_data, _M_size, _M_data);
 339       return *this;
 340   }
 341
 342   template<typename _Tp>
 343   inline valarray<_Tp>&
 344   valarray<_Tp>::operator= (const _Tp& __t)
 345   {
 346       __valarray_fill (_M_data, _M_size, __t);
 347       return *this;
 348   }
 349
 350   template<typename _Tp>
 351   inline valarray<_Tp>&
 352   valarray<_Tp>::operator= (const slice_array<_Tp>& __sa)
 353   {
 354       __valarray_copy (__sa._M_array, __sa._M_sz,
 355               __sa._M_stride, _Array<_Tp>(_M_data));
 356       return *this;
 357   }
 358
 359   template<typename _Tp>
 360   inline valarray<_Tp>&
 361   valarray<_Tp>::operator= (const gslice_array<_Tp>& __ga)
 362   {
 363       __valarray_copy (__ga._M_array, _Array<size_t>(__ga._M_index),
 364               _Array<_Tp>(_M_data), _M_size);
 365       return *this;
 366   }
 367
 368   template<typename _Tp>
 369   inline valarray<_Tp>&
 370   valarray<_Tp>::operator= (const mask_array<_Tp>& __ma)
 371   {
 372       __valarray_copy (__ma._M_array, __ma._M_mask,
 373               _Array<_Tp>(_M_data), _M_size);
 374       return *this;
 375   }
 376
 377   template<typename _Tp>
 378   inline valarray<_Tp>&
 379   valarray<_Tp>::operator= (const indirect_array<_Tp>& __ia)
 380   {
 381       __valarray_copy (__ia._M_array, __ia._M_index,
 382                _Array<_Tp>(_M_data), _M_size);
 383       return *this;
 384   }
 385
 386   template<typename _Tp> template<class _Dom>
 387   inline valarray<_Tp>&
 388   valarray<_Tp>::operator= (const _Expr<_Dom, _Tp>& __e)
 389   {
 390       __valarray_copy (__e, _M_size, _Array<_Tp>(_M_data));
 391       return *this;
 392   }
 393
 394   template<typename _Tp>
 395   inline _Expr<_SClos<_ValArray,_Tp>, _Tp>
 396   valarray<_Tp>::operator[] (slice __s) const
 397   {
 398       typedef _SClos<_ValArray,_Tp> _Closure;
 399       return _Expr<_Closure, _Tp> (_Closure (_Array<_Tp>(_M_data), __s));
 400   }
 401
 402   template<typename _Tp>
 403   inline slice_array<_Tp>
 404   valarray<_Tp>::operator[] (slice __s)
 405   {
 406       return slice_array<_Tp> (_Array<_Tp>(_M_data), __s);
 407   }
 408
 409   template<typename _Tp>
 410   inline _Expr<_GClos<_ValArray,_Tp>, _Tp>
 411   valarray<_Tp>::operator[] (const gslice& __gs) const
 412   {
 413       typedef _GClos<_ValArray,_Tp> _Closure;
 414       return _Expr<_Closure, _Tp>
 415           (_Closure (_Array<_Tp>(_M_data), __gs._M_index->_M_index));
 416   }
 417
 418   template<typename _Tp>
 419   inline gslice_array<_Tp>
 420   valarray<_Tp>::operator[] (const gslice& __gs)
 421   {
 422       return gslice_array<_Tp>
 423           (_Array<_Tp>(_M_data), __gs._M_index->_M_index);
 424   }
 425
 426   template<typename _Tp>
 427   inline valarray<_Tp>
 428   valarray<_Tp>::operator[] (const valarray<bool>& __m) const
 429   {
 430       size_t __s (0);
 431       size_t __e (__m.size ());
 432       for (size_t __i=0; __i<__e; ++__i)
 433           if (__m[__i]) ++__s;
 434       return valarray<_Tp> (mask_array<_Tp> (_Array<_Tp>(_M_data), __s,
 435                                          _Array<bool> (__m)));
 436   }
 437
 438   template<typename _Tp>
 439   inline mask_array<_Tp>
 440   valarray<_Tp>::operator[] (const valarray<bool>& __m)
 441   {
 442       size_t __s (0);
 443       size_t __e (__m.size ());
 444       for (size_t __i=0; __i<__e; ++__i)
 445           if (__m[__i]) ++__s;
 446       return mask_array<_Tp> (_Array<_Tp>(_M_data), __s, _Array<bool> (__m));
 447   }
 448
 449   template<typename _Tp>
 450   inline _Expr<_IClos<_ValArray,_Tp>, _Tp>
 451   valarray<_Tp>::operator[] (const valarray<size_t>& __i) const
 452   {
 453       typedef _IClos<_ValArray,_Tp> _Closure;
 454       return _Expr<_Closure, _Tp> (_Closure (*this, __i));
 455   }
 456
 457   template<typename _Tp>
 458   inline indirect_array<_Tp>
 459   valarray<_Tp>::operator[] (const valarray<size_t>& __i)
 460   {
 461       return indirect_array<_Tp> (_Array<_Tp>(_M_data), __i.size(),
 462                                 _Array<size_t> (__i));
 463   }
 464
 465   template<class _Tp>
 466   inline size_t valarray<_Tp>::size () const { return _M_size; }
 467
 468   template<class _Tp>
 469   inline _Tp
 470   valarray<_Tp>::sum () const
 471   {
 472       return __valarray_sum(_M_data, _M_data + _M_size);
 473   }
 474
 475 //   template<typename _Tp>
 476 //   inline _Tp
 477 //   valarray<_Tp>::product () const
 478 //   {
 479 //       return __valarray_product(_M_data, _M_data + _M_size);
 480 //   }
 481
 482   template <class _Tp>
 483      inline valarray<_Tp>
 484      valarray<_Tp>::shift(int __n) const
 485      {
 486        _Tp* const __a = static_cast<_Tp*>
 487          (__builtin_alloca(sizeof(_Tp) * _M_size));
 488        if (__n == 0)                          // no shift
 489          __valarray_copy_construct(_M_data, _M_data + _M_size, __a);
 490        else if (__n > 0)         // __n > 0: shift left
 491          {
 492            if (size_t(__n) > _M_size)
 493              __valarray_default_construct(__a, __a + __n);
 494            else
 495              {
 496                __valarray_copy_construct(_M_data+__n, _M_data + _M_size, __a);
 497                __valarray_default_construct(__a+_M_size-__n, __a + _M_size);
 498              }
 499          }
 500        else                        // __n < 0: shift right
 501          {
 502            __valarray_copy_construct (_M_data, _M_data+_M_size+__n, __a-__n);
 503            __valarray_default_construct(__a, __a - __n);
 504          }
 505        return valarray<_Tp> (__a, _M_size);
 506      }
 507
 508   template <class _Tp>
 509      inline valarray<_Tp>
 510      valarray<_Tp>::cshift (int __n) const
 511      {
 512        _Tp* const __a = static_cast<_Tp*>
 513          (__builtin_alloca (sizeof(_Tp) * _M_size));
 514        if (__n == 0)               // no cshift
 515          __valarray_copy_construct(_M_data, _M_data + _M_size, __a);
 516        else if (__n > 0)           // cshift left
 517          {
 518            __valarray_copy_construct(_M_data, _M_data+__n, __a+_M_size-__n);
 519            __valarray_copy_construct(_M_data+__n, _M_data + _M_size, __a);
 520          }
 521        else                        // cshift right
 522          {
 523            __valarray_copy_construct
 524              (_M_data + _M_size+__n, _M_data + _M_size, __a);
 525            __valarray_copy_construct
 526              (_M_data, _M_data + _M_size+__n, __a - __n);
 527          }
 528        return valarray<_Tp>(__a, _M_size);
 529      }
 530
 531   template <class _Tp>
 532   inline void
 533   valarray<_Tp>::resize (size_t __n, _Tp __c)
 534   {
 535     // This complication is so to make valarray<valarray<T> > work
 536     // even though it is not required by the standard.  Nobody should
 537     // be saying valarray<valarray<T> > anyway.  See the specs.
 538     __valarray_destroy_elements(_M_data, _M_data + _M_size);
 539     if (_M_size != __n)
 540       {
 541         __valarray_release_memory(_M_data);
 542         _M_size = __n;
 543         _M_data = __valarray_get_storage<_Tp>(__n);
 544       }
 545     __valarray_fill_construct(_M_data, _M_data + __n, __c);
 546   }
 547
 548   template<typename _Tp>
 549   inline _Tp
 550   valarray<_Tp>::min() const
 551   {
 552       return *min_element (_M_data, _M_data+_M_size);
 553   }
 554
 555   template<typename _Tp>
 556   inline _Tp
 557   valarray<_Tp>::max() const
 558   {
 559       return *max_element (_M_data, _M_data+_M_size);
 560   }
 561
 562   template<class _Tp>
 563   inline _Expr<_ValFunClos<_ValArray,_Tp>,_Tp>
 564   valarray<_Tp>::apply (_Tp func (_Tp)) const
 565   {
 566       typedef _ValFunClos<_ValArray,_Tp> _Closure;
 567       return _Expr<_Closure,_Tp> (_Closure (*this, func));
 568   }
 569
 570   template<class _Tp>
 571   inline _Expr<_RefFunClos<_ValArray,_Tp>,_Tp>
 572   valarray<_Tp>::apply (_Tp func (const _Tp &)) const
 573   {
 574       typedef _RefFunClos<_ValArray,_Tp> _Closure;
 575       return _Expr<_Closure,_Tp> (_Closure (*this, func));
 576   }
 577
 578 #define _DEFINE_VALARRAY_UNARY_OPERATOR(_Op, _Name)                     \
 579   template<typename _Tp>                                                \
 580   inline _Expr<_UnClos<_Name,_ValArray,_Tp>, _Tp>                       \
 581   valarray<_Tp>::operator _Op() const                                   \
 582   {                                                                     \
 583       typedef _UnClos<_Name,_ValArray,_Tp> _Closure;                    \
 584       return _Expr<_Closure, _Tp> (_Closure (*this));                   \
 585   }
 586
 587     _DEFINE_VALARRAY_UNARY_OPERATOR(+, _Unary_plus)
 588     _DEFINE_VALARRAY_UNARY_OPERATOR(-, negate)
 589     _DEFINE_VALARRAY_UNARY_OPERATOR(~, _Bitwise_not)
 590
 591 #undef _DEFINE_VALARRAY_UNARY_OPERATOR
 592
 593   template<typename _Tp>
 594   inline _Expr<_UnClos<logical_not,_ValArray,_Tp>, bool>
 595   valarray<_Tp>::operator!() const
 596   {
 597       typedef _UnClos<logical_not,_ValArray,_Tp> _Closure;
 598       return _Expr<_Closure, bool> (_Closure (*this));
 599   }
 600
 601 #define _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(_Op, _Name)               \
 602   template<class _Tp>                                                   \
 603   inline valarray<_Tp> &                                                \
 604   valarray<_Tp>::operator _Op##= (const _Tp &__t)                       \
 605   {                                                                     \
 606       _Array_augmented_##_Name (_Array<_Tp>(_M_data), _M_size, __t);    \
 607       return *this;                                                     \
 608   }                                                                     \
 609                                                                         \
 610   template<class _Tp>                                                   \
 611   inline valarray<_Tp> &                                                \
 612   valarray<_Tp>::operator _Op##= (const valarray<_Tp> &__v)             \
 613   {                                                                     \
 614       _Array_augmented_##_Name (_Array<_Tp>(_M_data), _M_size,          \
 615                                _Array<_Tp>(__v._M_data));               \
 616       return *this;                                                     \
 617   }
 618
 619 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(+, plus)
 620 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(-, minus)
 621 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(*, multiplies)
 622 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(/, divides)
 623 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(%, modulus)
 624 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(^, xor)
 625 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(&, and)
 626 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(|, or)
 627 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(<<, shift_left)
 628 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(>>, shift_right)
 629
 630 #undef _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT
 631
 632
 633 } // std::
 634
 635
 636 namespace std
 637 {
 638
 639 #define _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(_Op, _Name)          \
 640   template<class _Tp> template<class _Dom>                              \
 641   inline valarray<_Tp> &                                                \
 642   valarray<_Tp>::operator _Op##= (const _Expr<_Dom,_Tp> &__e)           \
 643   {                                                                     \
 644       _Array_augmented_##_Name (_Array<_Tp>(_M_data), __e, _M_size);    \
 645       return *this;                                                     \
 646   }
 647
 648 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(+, plus)
 649 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(-, minus)
 650 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(*, multiplies)
 651 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(/, divides)
 652 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(%, modulus)
 653 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(^, xor)
 654 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(&, and)
 655 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(|, or)
 656 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(<<, shift_left)
 657 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(>>, shift_right)
 658
 659 #undef _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT
 660
 661
 662 #define _DEFINE_BINARY_OPERATOR(_Op, _Name)                             \
 663   template<typename _Tp>                                                \
 664   inline _Expr<_BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp>, _Tp>        \
 665   operator _Op (const valarray<_Tp> &__v, const valarray<_Tp> &__w)     \
 666   {                                                                     \
 667       typedef _BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp> _Closure;     \
 668       return _Expr<_Closure, _Tp> (_Closure (__v, __w));                \
 669   }                                                                     \
 670                                                                         \
 671   template<typename _Tp>                                                \
 672   inline _Expr<_BinClos<_Name,_ValArray,_Constant,_Tp,_Tp>,_Tp>         \
 673   operator _Op (const valarray<_Tp> &__v, const _Tp &__t)               \
 674   {                                                                     \
 675       typedef _BinClos<_Name,_ValArray,_Constant,_Tp,_Tp> _Closure;     \
 676       return _Expr<_Closure, _Tp> (_Closure (__v, __t));                \
 677   }                                                                     \
 678                                                                         \
 679   template<typename _Tp>                                                \
 680   inline _Expr<_BinClos<_Name,_Constant,_ValArray,_Tp,_Tp>,_Tp>         \
 681   operator _Op (const _Tp &__t, const valarray<_Tp> &__v)               \
 682   {                                                                     \
 683       typedef _BinClos<_Name,_Constant,_ValArray,_Tp,_Tp> _Closure;     \
 684       return _Expr<_Closure, _Tp> (_Closure (__t, __v));                \
 685   }
 686
 687 _DEFINE_BINARY_OPERATOR(+, plus)
 688 _DEFINE_BINARY_OPERATOR(-, minus)
 689 _DEFINE_BINARY_OPERATOR(*, multiplies)
 690 _DEFINE_BINARY_OPERATOR(/, divides)
 691 _DEFINE_BINARY_OPERATOR(%, modulus)
 692 _DEFINE_BINARY_OPERATOR(^, _Bitwise_xor)
 693 _DEFINE_BINARY_OPERATOR(&, _Bitwise_and)
 694 _DEFINE_BINARY_OPERATOR(|, _Bitwise_or)
 695 _DEFINE_BINARY_OPERATOR(<<, _Shift_left)
 696 _DEFINE_BINARY_OPERATOR(>>, _Shift_right)
 697
 698 #undef _DEFINE_BINARY_OPERATOR
 699
 700 #define _DEFINE_LOGICAL_OPERATOR(_Op, _Name)                            \
 701   template<typename _Tp>                                                \
 702   inline _Expr<_BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp>,bool>        \
 703   operator _Op (const valarray<_Tp> &__v, const valarray<_Tp> &__w)     \
 704   {                                                                     \
 705       typedef _BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp> _Closure;     \
 706       return _Expr<_Closure, bool> (_Closure (__v, __w));               \
 707   }                                                                     \
 708                                                                         \
 709   template<class _Tp>                                                   \
 710   inline _Expr<_BinClos<_Name,_ValArray,_Constant,_Tp,_Tp>,bool>        \
 711   operator _Op (const valarray<_Tp> &__v, const _Tp &__t)               \
 712   {                                                                     \
 713       typedef _BinClos<_Name,_ValArray,_Constant,_Tp,_Tp> _Closure;     \
 714       return _Expr<_Closure, bool> (_Closure (__v, __t));               \
 715   }                                                                     \
 716                                                                         \
 717   template<class _Tp>                                                   \
 718   inline _Expr<_BinClos<_Name,_Constant,_ValArray,_Tp,_Tp>,bool>        \
 719   operator _Op (const _Tp &__t, const valarray<_Tp> &__v)               \
 720   {                                                                     \
 721       typedef _BinClos<_Name,_Constant,_ValArray,_Tp,_Tp> _Closure;     \
 722       return _Expr<_Closure, bool> (_Closure (__t, __v));               \
 723   }
 724
 725 _DEFINE_LOGICAL_OPERATOR(&&, logical_and)
 726 _DEFINE_LOGICAL_OPERATOR(||, logical_or)
 727 _DEFINE_LOGICAL_OPERATOR(==, equal_to)
 728 _DEFINE_LOGICAL_OPERATOR(!=, not_equal_to)
 729 _DEFINE_LOGICAL_OPERATOR(<, less)
 730 _DEFINE_LOGICAL_OPERATOR(>, greater)
 731 _DEFINE_LOGICAL_OPERATOR(<=, less_equal)
 732 _DEFINE_LOGICAL_OPERATOR(>=, greater_equal)
 733
 734 #undef _DEFINE_LOGICAL_OPERATOR
 735
 736 } // namespace std
 737
 738 #endif // _CPP_VALARRAY
 739
 740 // Local Variables:
 741 // mode:c++
 742 // End: