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

   1 // The template and inlines for the -*- C++ -*- internal _Array helper class.
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007
   4 //  Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 // As a special exception, you may use this file as part of a free software
  23 // library without restriction.  Specifically, if other files instantiate
  24 // templates or use macros or inline functions from this file, or you compile
  25 // this file and link it with other files to produce an executable, this
  26 // file does not by itself cause the resulting executable to be covered by
  27 // the GNU General Public License.  This exception does not however
  28 // invalidate any other reasons why the executable file might be covered by
  29 // the GNU General Public License.
  30
  31 /** @file valarray_array.h
  32  *  This is an internal header file, included by other library headers.
  33  *  You should not attempt to use it directly.
  34  */
  35
  36 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
  37
  38 #ifndef _VALARRAY_ARRAY_H
  39 #define _VALARRAY_ARRAY_H 1
  40
  41 #pragma GCC system_header
  42
  43 #include <bits/c++config.h>
  44 #include <bits/cpp_type_traits.h>
  45 #include <cstdlib>
  46 #include <cstring>
  47 #include <new>
  48
  49 _GLIBCXX_BEGIN_NAMESPACE(std)
  50
  51   //
  52   // Helper functions on raw pointers
  53   //
  54
  55   // We get memory by the old fashion way
  56   inline void*
  57   __valarray_get_memory(size_t __n)
  58   { return operator new(__n); }
  59
  60   template<typename _Tp>
  61     inline _Tp*__restrict__
  62     __valarray_get_storage(size_t __n)
  63     {
  64       return static_cast<_Tp*__restrict__>
  65         (std::__valarray_get_memory(__n * sizeof(_Tp)));
  66     }
  67
  68   // Return memory to the system
  69   inline void
  70   __valarray_release_memory(void* __p)
  71   { operator delete(__p); }
  72
  73   // Turn a raw-memory into an array of _Tp filled with _Tp()
  74   // This is required in 'valarray<T> v(n);'
  75   template<typename _Tp, bool>
  76     struct _Array_default_ctor
  77     {
  78       // Please note that this isn't exception safe.  But
  79       // valarrays aren't required to be exception safe.
  80       inline static void
  81       _S_do_it(_Tp* __restrict__ __b, _Tp* __restrict__ __e)
  82       {
  83         while (__b != __e)
  84           new(__b++) _Tp();
  85       }
  86     };
  87
  88   template<typename _Tp>
  89     struct _Array_default_ctor<_Tp, true>
  90     {
  91       // For fundamental types, it suffices to say 'memset()'
  92       inline static void
  93       _S_do_it(_Tp* __restrict__ __b, _Tp* __restrict__ __e)
  94       { std::memset(__b, 0, (__e - __b) * sizeof(_Tp)); }
  95     };
  96
  97   template<typename _Tp>
  98     inline void
  99     __valarray_default_construct(_Tp* __restrict__ __b, _Tp* __restrict__ __e)
 100     {
 101       _Array_default_ctor<_Tp, __is_pod(_Tp)>::_S_do_it(__b, __e);
 102     }
 103
 104   // Turn a raw-memory into an array of _Tp filled with __t
 105   // This is the required in valarray<T> v(n, t).  Also
 106   // used in valarray<>::resize().
 107   template<typename _Tp, bool>
 108     struct _Array_init_ctor
 109     {
 110       // Please note that this isn't exception safe.  But
 111       // valarrays aren't required to be exception safe.
 112       inline static void
 113       _S_do_it(_Tp* __restrict__ __b, _Tp* __restrict__ __e, const _Tp __t)
 114       {
 115         while (__b != __e)
 116           new(__b++) _Tp(__t);
 117       }
 118     };
 119
 120   template<typename _Tp>
 121     struct _Array_init_ctor<_Tp, true>
 122     {
 123       inline static void
 124       _S_do_it(_Tp* __restrict__ __b, _Tp* __restrict__ __e,  const _Tp __t)
 125       {
 126         while (__b != __e)
 127           *__b++ = __t;
 128       }
 129     };
 130
 131   template<typename _Tp>
 132     inline void
 133     __valarray_fill_construct(_Tp* __restrict__ __b, _Tp* __restrict__ __e,
 134                               const _Tp __t)
 135     {
 136       _Array_init_ctor<_Tp, __is_pod(_Tp)>::_S_do_it(__b, __e, __t);
 137     }
 138
 139   //
 140   // copy-construct raw array [__o, *) from plain array [__b, __e)
 141   // We can't just say 'memcpy()'
 142   //
 143   template<typename _Tp, bool>
 144     struct _Array_copy_ctor
 145     {
 146       // Please note that this isn't exception safe.  But
 147       // valarrays aren't required to be exception safe.
 148       inline static void
 149       _S_do_it(const _Tp* __restrict__ __b, const _Tp* __restrict__ __e,
 150                _Tp* __restrict__ __o)
 151       {
 152         while (__b != __e)
 153           new(__o++) _Tp(*__b++);
 154       }
 155     };
 156
 157   template<typename _Tp>
 158     struct _Array_copy_ctor<_Tp, true>
 159     {
 160       inline static void
 161       _S_do_it(const _Tp* __restrict__ __b, const _Tp* __restrict__ __e,
 162                _Tp* __restrict__ __o)
 163       { std::memcpy(__o, __b, (__e - __b)*sizeof(_Tp)); }
 164     };
 165
 166   template<typename _Tp>
 167     inline void
 168     __valarray_copy_construct(const _Tp* __restrict__ __b,
 169                               const _Tp* __restrict__ __e,
 170                               _Tp* __restrict__ __o)
 171     {
 172       _Array_copy_ctor<_Tp, __is_pod(_Tp)>::_S_do_it(__b, __e, __o);
 173     }
 174
 175   // copy-construct raw array [__o, *) from strided array __a[<__n : __s>]
 176   template<typename _Tp>
 177     inline void
 178     __valarray_copy_construct (const _Tp* __restrict__ __a, size_t __n,
 179                                size_t __s, _Tp* __restrict__ __o)
 180     {
 181       if (__is_pod(_Tp))
 182         while (__n--)
 183           {
 184             *__o++ = *__a;
 185             __a += __s;
 186           }
 187       else
 188         while (__n--)
 189           {
 190             new(__o++) _Tp(*__a);
 191             __a += __s;
 192           }
 193     }
 194
 195   // copy-construct raw array [__o, *) from indexed array __a[__i[<__n>]]
 196   template<typename _Tp>
 197     inline void
 198     __valarray_copy_construct (const _Tp* __restrict__ __a,
 199                                const size_t* __restrict__ __i,
 200                                _Tp* __restrict__ __o, size_t __n)
 201     {
 202       if (__is_pod(_Tp))
 203         while (__n--)
 204           *__o++ = __a[*__i++];
 205       else
 206         while (__n--)
 207           new (__o++) _Tp(__a[*__i++]);
 208     }
 209
 210   // Do the necessary cleanup when we're done with arrays.
 211   template<typename _Tp>
 212     inline void
 213     __valarray_destroy_elements(_Tp* __restrict__ __b, _Tp* __restrict__ __e)
 214     {
 215       if (!__is_pod(_Tp))
 216         while (__b != __e)
 217           {
 218             __b->~_Tp();
 219             ++__b;
 220           }
 221     }
 222
 223   // Fill a plain array __a[<__n>] with __t
 224   template<typename _Tp>
 225     inline void
 226     __valarray_fill(_Tp* __restrict__ __a, size_t __n, const _Tp& __t)
 227     {
 228       while (__n--)
 229         *__a++ = __t;
 230     }
 231
 232   // fill strided array __a[<__n-1 : __s>] with __t
 233   template<typename _Tp>
 234     inline void
 235     __valarray_fill(_Tp* __restrict__ __a, size_t __n,
 236                     size_t __s, const _Tp& __t)
 237     {
 238       for (size_t __i = 0; __i < __n; ++__i, __a += __s)
 239         *__a = __t;
 240     }
 241
 242   // fill indir   ect array __a[__i[<__n>]] with __i
 243   template<typename _Tp>
 244     inline void
 245     __valarray_fill(_Tp* __restrict__ __a, const size_t* __restrict__ __i,
 246                     size_t __n, const _Tp& __t)
 247     {
 248       for (size_t __j = 0; __j < __n; ++__j, ++__i)
 249         __a[*__i] = __t;
 250     }
 251
 252   // copy plain array __a[<__n>] in __b[<__n>]
 253   // For non-fundamental types, it is wrong to say 'memcpy()'
 254   template<typename _Tp, bool>
 255     struct _Array_copier
 256     {
 257       inline static void
 258       _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b)
 259       {
 260         while(__n--)
 261           *__b++ = *__a++;
 262       }
 263     };
 264
 265   template<typename _Tp>
 266     struct _Array_copier<_Tp, true>
 267     {
 268       inline static void
 269       _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b)
 270       { std::memcpy (__b, __a, __n * sizeof (_Tp)); }
 271     };
 272
 273   // Copy a plain array __a[<__n>] into a play array __b[<>]
 274   template<typename _Tp>
 275     inline void
 276     __valarray_copy(const _Tp* __restrict__ __a, size_t __n,
 277                     _Tp* __restrict__ __b)
 278     {
 279       _Array_copier<_Tp, __is_pod(_Tp)>::_S_do_it(__a, __n, __b);
 280     }
 281
 282   // Copy strided array __a[<__n : __s>] in plain __b[<__n>]
 283   template<typename _Tp>
 284     inline void
 285     __valarray_copy(const _Tp* __restrict__ __a, size_t __n, size_t __s,
 286                     _Tp* __restrict__ __b)
 287     {
 288       for (size_t __i = 0; __i < __n; ++__i, ++__b, __a += __s)
 289         *__b = *__a;
 290     }
 291
 292   // Copy a plain array  __a[<__n>] into a strided array __b[<__n : __s>]
 293   template<typename _Tp>
 294     inline void
 295     __valarray_copy(const _Tp* __restrict__ __a, _Tp* __restrict__ __b,
 296                     size_t __n, size_t __s)
 297     {
 298       for (size_t __i = 0; __i < __n; ++__i, ++__a, __b += __s)
 299         *__b = *__a;
 300     }
 301
 302   // Copy strided array __src[<__n : __s1>] into another
 303   // strided array __dst[< : __s2>].  Their sizes must match.
 304   template<typename _Tp>
 305     inline void
 306     __valarray_copy(const _Tp* __restrict__ __src, size_t __n, size_t __s1,
 307                     _Tp* __restrict__ __dst, size_t __s2)
 308     {
 309       for (size_t __i = 0; __i < __n; ++__i)
 310         __dst[__i * __s2] = __src[__i * __s1];
 311     }
 312
 313   // Copy an indexed array __a[__i[<__n>]] in plain array __b[<__n>]
 314   template<typename _Tp>
 315     inline void
 316     __valarray_copy(const _Tp* __restrict__ __a,
 317                     const size_t* __restrict__ __i,
 318                     _Tp* __restrict__ __b, size_t __n)
 319     {
 320       for (size_t __j = 0; __j < __n; ++__j, ++__b, ++__i)
 321         *__b = __a[*__i];
 322     }
 323
 324   // Copy a plain array __a[<__n>] in an indexed array __b[__i[<__n>]]
 325   template<typename _Tp>
 326     inline void
 327     __valarray_copy(const _Tp* __restrict__ __a, size_t __n,
 328                     _Tp* __restrict__ __b, const size_t* __restrict__ __i)
 329     {
 330       for (size_t __j = 0; __j < __n; ++__j, ++__a, ++__i)
 331         __b[*__i] = *__a;
 332     }
 333
 334   // Copy the __n first elements of an indexed array __src[<__i>] into
 335   // another indexed array __dst[<__j>].
 336   template<typename _Tp>
 337     inline void
 338     __valarray_copy(const _Tp* __restrict__ __src, size_t __n,
 339                     const size_t* __restrict__ __i,
 340                     _Tp* __restrict__ __dst, const size_t* __restrict__ __j)
 341     {
 342       for (size_t __k = 0; __k < __n; ++__k)
 343         __dst[*__j++] = __src[*__i++];
 344     }
 345
 346   //
 347   // Compute the sum of elements in range [__f, __l)
 348   // This is a naive algorithm.  It suffers from cancelling.
 349   // In the future try to specialize
 350   // for _Tp = float, double, long double using a more accurate
 351   // algorithm.
 352   //
 353   template<typename _Tp>
 354     inline _Tp
 355     __valarray_sum(const _Tp* __restrict__ __f, const _Tp* __restrict__ __l)
 356     {
 357       _Tp __r = _Tp();
 358       while (__f != __l)
 359         __r += *__f++;
 360       return __r;
 361     }
 362
 363   // Compute the product of all elements in range [__f, __l)
 364   template<typename _Tp>
 365     inline _Tp
 366     __valarray_product(const _Tp* __restrict__ __f,
 367                        const _Tp* __restrict__ __l)
 368     {
 369       _Tp __r = _Tp(1);
 370       while (__f != __l)
 371         __r = __r * *__f++;
 372       return __r;
 373     }
 374
 375   // Compute the min/max of an array-expression
 376   template<typename _Ta>
 377     inline typename _Ta::value_type
 378     __valarray_min(const _Ta& __a)
 379     {
 380       size_t __s = __a.size();
 381       typedef typename _Ta::value_type _Value_type;
 382       _Value_type __r = __s == 0 ? _Value_type() : __a[0];
 383       for (size_t __i = 1; __i < __s; ++__i)
 384         {
 385           _Value_type __t = __a[__i];
 386           if (__t < __r)
 387             __r = __t;
 388         }
 389       return __r;
 390     }
 391
 392   template<typename _Ta>
 393     inline typename _Ta::value_type
 394     __valarray_max(const _Ta& __a)
 395     {
 396       size_t __s = __a.size();
 397       typedef typename _Ta::value_type _Value_type;
 398       _Value_type __r = __s == 0 ? _Value_type() : __a[0];
 399       for (size_t __i = 1; __i < __s; ++__i)
 400         {
 401           _Value_type __t = __a[__i];
 402           if (__t > __r)
 403             __r = __t;
 404         }
 405       return __r;
 406     }
 407
 408   //
 409   // Helper class _Array, first layer of valarray abstraction.
 410   // All operations on valarray should be forwarded to this class
 411   // whenever possible. -- gdr
 412   //
 413
 414   template<typename _Tp>
 415     struct _Array
 416     {
 417       explicit _Array(size_t);
 418       explicit _Array(_Tp* const __restrict__);
 419       explicit _Array(const valarray<_Tp>&);
 420       _Array(const _Tp* __restrict__, size_t);
 421
 422       _Tp* begin() const;
 423
 424       _Tp* const __restrict__ _M_data;
 425     };
 426
 427
 428   // Copy-construct plain array __b[<__n>] from indexed array __a[__i[<__n>]]
 429   template<typename _Tp>
 430     inline void
 431     __valarray_copy_construct(_Array<_Tp> __a, _Array<size_t> __i,
 432                               _Array<_Tp> __b, size_t __n)
 433     { std::__valarray_copy_construct(__a._M_data, __i._M_data,
 434                                      __b._M_data, __n); }
 435
 436   // Copy-construct plain array __b[<__n>] from strided array __a[<__n : __s>]
 437   template<typename _Tp>
 438     inline void
 439     __valarray_copy_construct(_Array<_Tp> __a, size_t __n, size_t __s,
 440                               _Array<_Tp> __b)
 441     { std::__valarray_copy_construct(__a._M_data, __n, __s, __b._M_data); }
 442
 443   template<typename _Tp>
 444     inline void
 445     __valarray_fill (_Array<_Tp> __a, size_t __n, const _Tp& __t)
 446     { std::__valarray_fill(__a._M_data, __n, __t); }
 447
 448   template<typename _Tp>
 449     inline void
 450     __valarray_fill(_Array<_Tp> __a, size_t __n, size_t __s, const _Tp& __t)
 451     { std::__valarray_fill(__a._M_data, __n, __s, __t); }
 452
 453   template<typename _Tp>
 454     inline void
 455     __valarray_fill(_Array<_Tp> __a, _Array<size_t> __i,
 456                     size_t __n, const _Tp& __t)
 457     { std::__valarray_fill(__a._M_data, __i._M_data, __n, __t); }
 458
 459   // Copy a plain array __a[<__n>] into a play array __b[<>]
 460   template<typename _Tp>
 461     inline void
 462     __valarray_copy(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b)
 463     { std::__valarray_copy(__a._M_data, __n, __b._M_data); }
 464
 465   // Copy strided array __a[<__n : __s>] in plain __b[<__n>]
 466   template<typename _Tp>
 467     inline void
 468     __valarray_copy(_Array<_Tp> __a, size_t __n, size_t __s, _Array<_Tp> __b)
 469     { std::__valarray_copy(__a._M_data, __n, __s, __b._M_data); }
 470
 471   // Copy a plain array  __a[<__n>] into a strided array __b[<__n : __s>]
 472   template<typename _Tp>
 473     inline void
 474     __valarray_copy(_Array<_Tp> __a, _Array<_Tp> __b, size_t __n, size_t __s)
 475     { __valarray_copy(__a._M_data, __b._M_data, __n, __s); }
 476
 477   // Copy strided array __src[<__n : __s1>] into another
 478   // strided array __dst[< : __s2>].  Their sizes must match.
 479   template<typename _Tp>
 480     inline void
 481     __valarray_copy(_Array<_Tp> __a, size_t __n, size_t __s1,
 482                     _Array<_Tp> __b, size_t __s2)
 483     { std::__valarray_copy(__a._M_data, __n, __s1, __b._M_data, __s2); }
 484
 485   // Copy an indexed array __a[__i[<__n>]] in plain array __b[<__n>]
 486   template<typename _Tp>
 487     inline void
 488     __valarray_copy(_Array<_Tp> __a, _Array<size_t> __i,
 489                     _Array<_Tp> __b, size_t __n)
 490     { std::__valarray_copy(__a._M_data, __i._M_data, __b._M_data, __n); }
 491
 492   // Copy a plain array __a[<__n>] in an indexed array __b[__i[<__n>]]
 493   template<typename _Tp>
 494     inline void
 495     __valarray_copy(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b,
 496                     _Array<size_t> __i)
 497     { std::__valarray_copy(__a._M_data, __n, __b._M_data, __i._M_data); }
 498
 499   // Copy the __n first elements of an indexed array __src[<__i>] into
 500   // another indexed array __dst[<__j>].
 501   template<typename _Tp>
 502     inline void
 503     __valarray_copy(_Array<_Tp> __src, size_t __n, _Array<size_t> __i,
 504                     _Array<_Tp> __dst, _Array<size_t> __j)
 505     {
 506       std::__valarray_copy(__src._M_data, __n, __i._M_data,
 507                     __dst._M_data, __j._M_data);
 508     }
 509
 510   template<typename _Tp>
 511     inline
 512     _Array<_Tp>::_Array(size_t __n)
 513     : _M_data(__valarray_get_storage<_Tp>(__n))
 514     { std::__valarray_default_construct(_M_data, _M_data + __n); }
 515
 516   template<typename _Tp>
 517     inline
 518     _Array<_Tp>::_Array(_Tp* const __restrict__ __p)
 519     : _M_data (__p) {}
 520
 521   template<typename _Tp>
 522     inline
 523     _Array<_Tp>::_Array(const valarray<_Tp>& __v)
 524     : _M_data (__v._M_data) {}
 525
 526   template<typename _Tp>
 527     inline
 528     _Array<_Tp>::_Array(const _Tp* __restrict__ __b, size_t __s)
 529     : _M_data(__valarray_get_storage<_Tp>(__s))
 530     { std::__valarray_copy_construct(__b, __s, _M_data); }
 531
 532   template<typename _Tp>
 533     inline _Tp*
 534     _Array<_Tp>::begin () const
 535     { return _M_data; }
 536
 537 #define _DEFINE_ARRAY_FUNCTION(_Op, _Name)                              \
 538   template<typename _Tp>                                                \
 539     inline void                                                         \
 540     _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, const _Tp& __t) \
 541     {                                                                   \
 542       for (_Tp* __p = __a._M_data; __p < __a._M_data + __n; ++__p)      \
 543         *__p _Op##= __t;                                                \
 544     }                                                                   \
 545                                                                         \
 546   template<typename _Tp>                                                \
 547     inline void                                                         \
 548     _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b) \
 549     {                                                                   \
 550       _Tp* __p = __a._M_data;                                           \
 551       for (_Tp* __q = __b._M_data; __q < __b._M_data + __n; ++__p, ++__q) \
 552         *__p _Op##= *__q;                                               \
 553     }                                                                   \
 554                                                                         \
 555   template<typename _Tp, class _Dom>                                    \
 556     void                                                                \
 557     _Array_augmented_##_Name(_Array<_Tp> __a,                           \
 558                              const _Expr<_Dom, _Tp>& __e, size_t __n)   \
 559     {                                                                   \
 560       _Tp* __p(__a._M_data);                                            \
 561       for (size_t __i = 0; __i < __n; ++__i, ++__p)                     \
 562         *__p _Op##= __e[__i];                                           \
 563     }                                                                   \
 564                                                                         \
 565   template<typename _Tp>                                                \
 566     inline void                                                         \
 567     _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, size_t __s,   \
 568                              _Array<_Tp> __b)                           \
 569     {                                                                   \
 570       _Tp* __q(__b._M_data);                                            \
 571       for (_Tp* __p = __a._M_data; __p < __a._M_data + __s * __n;       \
 572            __p += __s, ++__q)                                           \
 573         *__p _Op##= *__q;                                               \
 574     }                                                                   \
 575                                                                         \
 576   template<typename _Tp>                                                \
 577     inline void                                                         \
 578     _Array_augmented_##_Name(_Array<_Tp> __a, _Array<_Tp> __b,          \
 579                              size_t __n, size_t __s)                    \
 580     {                                                                   \
 581       _Tp* __q(__b._M_data);                                            \
 582       for (_Tp* __p = __a._M_data; __p < __a._M_data + __n;             \
 583            ++__p, __q += __s)                                           \
 584         *__p _Op##= *__q;                                               \
 585     }                                                                   \
 586                                                                         \
 587   template<typename _Tp, class _Dom>                                    \
 588     void                                                                \
 589     _Array_augmented_##_Name(_Array<_Tp> __a, size_t __s,               \
 590                              const _Expr<_Dom, _Tp>& __e, size_t __n)   \
 591     {                                                                   \
 592       _Tp* __p(__a._M_data);                                            \
 593       for (size_t __i = 0; __i < __n; ++__i, __p += __s)                \
 594         *__p _Op##= __e[__i];                                           \
 595     }                                                                   \
 596                                                                         \
 597   template<typename _Tp>                                                \
 598     inline void                                                         \
 599     _Array_augmented_##_Name(_Array<_Tp> __a, _Array<size_t> __i,       \
 600                              _Array<_Tp> __b, size_t __n)               \
 601     {                                                                   \
 602       _Tp* __q(__b._M_data);                                            \
 603       for (size_t* __j = __i._M_data; __j < __i._M_data + __n;          \
 604            ++__j, ++__q)                                                \
 605         __a._M_data[*__j] _Op##= *__q;                                  \
 606     }                                                                   \
 607                                                                         \
 608   template<typename _Tp>                                                \
 609     inline void                                                         \
 610     _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n,               \
 611                              _Array<_Tp> __b, _Array<size_t> __i)       \
 612     {                                                                   \
 613       _Tp* __p(__a._M_data);                                            \
 614       for (size_t* __j = __i._M_data; __j<__i._M_data + __n;            \
 615            ++__j, ++__p)                                                \
 616         *__p _Op##= __b._M_data[*__j];                                  \
 617     }                                                                   \
 618                                                                         \
 619   template<typename _Tp, class _Dom>                                    \
 620     void                                                                \
 621     _Array_augmented_##_Name(_Array<_Tp> __a, _Array<size_t> __i,       \
 622                              const _Expr<_Dom, _Tp>& __e, size_t __n)   \
 623     {                                                                   \
 624       size_t* __j(__i._M_data);                                         \
 625       for (size_t __k = 0; __k<__n; ++__k, ++__j)                       \
 626         __a._M_data[*__j] _Op##= __e[__k];                              \
 627     }                                                                   \
 628                                                                         \
 629   template<typename _Tp>                                                \
 630     void                                                                \
 631     _Array_augmented_##_Name(_Array<_Tp> __a, _Array<bool> __m,         \
 632                              _Array<_Tp> __b, size_t __n)               \
 633     {                                                                   \
 634       bool* __ok(__m._M_data);                                          \
 635       _Tp* __p(__a._M_data);                                            \
 636       for (_Tp* __q = __b._M_data; __q < __b._M_data + __n;             \
 637            ++__q, ++__ok, ++__p)                                        \
 638         {                                                               \
 639           while (! *__ok)                                               \
 640             {                                                           \
 641               ++__ok;                                                   \
 642               ++__p;                                                    \
 643             }                                                           \
 644           *__p _Op##= *__q;                                             \
 645         }                                                               \
 646     }                                                                   \
 647                                                                         \
 648   template<typename _Tp>                                                \
 649     void                                                                \
 650     _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n,               \
 651                              _Array<_Tp> __b, _Array<bool> __m)         \
 652     {                                                                   \
 653       bool* __ok(__m._M_data);                                          \
 654       _Tp* __q(__b._M_data);                                            \
 655       for (_Tp* __p = __a._M_data; __p < __a._M_data + __n;             \
 656            ++__p, ++__ok, ++__q)                                        \
 657         {                                                               \
 658           while (! *__ok)                                               \
 659             {                                                           \
 660               ++__ok;                                                   \
 661               ++__q;                                                    \
 662             }                                                           \
 663           *__p _Op##= *__q;                                             \
 664         }                                                               \
 665     }                                                                   \
 666                                                                         \
 667   template<typename _Tp, class _Dom>                                    \
 668     void                                                                \
 669     _Array_augmented_##_Name(_Array<_Tp> __a, _Array<bool> __m,         \
 670                              const _Expr<_Dom, _Tp>& __e, size_t __n)   \
 671     {                                                                   \
 672       bool* __ok(__m._M_data);                                          \
 673       _Tp* __p(__a._M_data);                                            \
 674       for (size_t __i = 0; __i < __n; ++__i, ++__ok, ++__p)             \
 675         {                                                               \
 676           while (! *__ok)                                               \
 677             {                                                           \
 678               ++__ok;                                                   \
 679               ++__p;                                                    \
 680             }                                                           \
 681           *__p _Op##= __e[__i];                                         \
 682         }                                                               \
 683     }
 684
 685    _DEFINE_ARRAY_FUNCTION(+, __plus)
 686    _DEFINE_ARRAY_FUNCTION(-, __minus)
 687    _DEFINE_ARRAY_FUNCTION(*, __multiplies)
 688    _DEFINE_ARRAY_FUNCTION(/, __divides)
 689    _DEFINE_ARRAY_FUNCTION(%, __modulus)
 690    _DEFINE_ARRAY_FUNCTION(^, __bitwise_xor)
 691    _DEFINE_ARRAY_FUNCTION(|, __bitwise_or)
 692    _DEFINE_ARRAY_FUNCTION(&, __bitwise_and)
 693    _DEFINE_ARRAY_FUNCTION(<<, __shift_left)
 694    _DEFINE_ARRAY_FUNCTION(>>, __shift_right)
 695
 696 #undef _DEFINE_ARRAY_FUNCTION
 697
 698 _GLIBCXX_END_NAMESPACE
 699
 700 #ifndef _GLIBCXX_EXPORT_TEMPLATE
 701 # include <bits/valarray_array.tcc>
 702 #endif
 703
 704 #endif /* _ARRAY_H */