libstdc++
valarray
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1 // The template and inlines for the -*- C++ -*- valarray class.
2 
3 // Copyright (C) 1997-2021 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 include/valarray
26  * This is a Standard C++ Library header.
27  */
28 
29 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
30 
31 #ifndef _GLIBCXX_VALARRAY
32 #define _GLIBCXX_VALARRAY 1
33 
34 #pragma GCC system_header
35 
36 #include <bits/c++config.h>
37 #include <cmath>
38 #include <algorithm>
39 #include <debug/debug.h>
40 #if __cplusplus >= 201103L
41 #include <initializer_list>
42 #endif
43 
44 namespace std _GLIBCXX_VISIBILITY(default)
45 {
46 _GLIBCXX_BEGIN_NAMESPACE_VERSION
47 
48  template<class _Clos, typename _Tp>
49  class _Expr;
50 
51  template<typename _Tp1, typename _Tp2>
52  class _ValArray;
53 
54 namespace __detail
55 {
56  template<class _Oper, template<class, class> class _Meta, class _Dom>
57  struct _UnClos;
58 
59  template<class _Oper,
60  template<class, class> class _Meta1,
61  template<class, class> class _Meta2,
62  class _Dom1, class _Dom2>
63  class _BinClos;
64 
65  template<template<class, class> class _Meta, class _Dom>
66  class _SClos;
67 
68  template<template<class, class> class _Meta, class _Dom>
69  class _GClos;
70 
71  template<template<class, class> class _Meta, class _Dom>
72  class _IClos;
73 
74  template<template<class, class> class _Meta, class _Dom>
75  class _ValFunClos;
76 
77  template<template<class, class> class _Meta, class _Dom>
78  class _RefFunClos;
79 } // namespace __detail
80 
81  using __detail::_UnClos;
82  using __detail::_BinClos;
83  using __detail::_SClos;
84  using __detail::_GClos;
85  using __detail::_IClos;
86  using __detail::_ValFunClos;
87  using __detail::_RefFunClos;
88 
89  template<class _Tp> class valarray; // An array of type _Tp
90  class slice; // BLAS-like slice out of an array
91  template<class _Tp> class slice_array;
92  class gslice; // generalized slice out of an array
93  template<class _Tp> class gslice_array;
94  template<class _Tp> class mask_array; // masked array
95  template<class _Tp> class indirect_array; // indirected array
96 
97 _GLIBCXX_END_NAMESPACE_VERSION
98 } // namespace
99 
100 #include <bits/valarray_array.h>
101 #include <bits/valarray_before.h>
102 
103 namespace std _GLIBCXX_VISIBILITY(default)
104 {
105 _GLIBCXX_BEGIN_NAMESPACE_VERSION
106 
107  /**
108  * @defgroup numeric_arrays Numeric Arrays
109  * @ingroup numerics
110  *
111  * Classes and functions for representing and manipulating arrays of elements.
112  * @{
113  */
114 
115  /**
116  * @brief Smart array designed to support numeric processing.
117  *
118  * A valarray is an array that provides constraints intended to allow for
119  * effective optimization of numeric array processing by reducing the
120  * aliasing that can result from pointer representations. It represents a
121  * one-dimensional array from which different multidimensional subsets can
122  * be accessed and modified.
123  *
124  * @tparam _Tp Type of object in the array.
125  */
126  template<class _Tp>
127  class valarray
128  {
129  template<class _Op>
130  struct _UnaryOp
131  {
132  typedef typename __fun<_Op, _Tp>::result_type __rt;
133  typedef _Expr<_UnClos<_Op, _ValArray, _Tp>, __rt> _Rt;
134  };
135  public:
136  typedef _Tp value_type;
137 
138  // _lib.valarray.cons_ construct/destroy:
139  /// Construct an empty array.
141 
142  /// Construct an array with @a n elements.
143  explicit valarray(size_t);
144 
145  /// Construct an array with @a n elements initialized to @a t.
146  valarray(const _Tp&, size_t);
147 
148  /// Construct an array initialized to the first @a n elements of @a t.
149  valarray(const _Tp* __restrict__, size_t);
150 
151  /// Copy constructor.
153 
154 #if __cplusplus >= 201103L
155  /// Move constructor.
156  valarray(valarray&&) noexcept;
157 #endif
158 
159  /// Construct an array with the same size and values in @a sa.
161 
162  /// Construct an array with the same size and values in @a ga.
164 
165  /// Construct an array with the same size and values in @a ma.
167 
168  /// Construct an array with the same size and values in @a ia.
170 
171 #if __cplusplus >= 201103L
172  /// Construct an array with an initializer_list of values.
174 #endif
175 
176  template<class _Dom>
177  valarray(const _Expr<_Dom, _Tp>& __e);
178 
179  ~valarray() _GLIBCXX_NOEXCEPT;
180 
181  // _lib.valarray.assign_ assignment:
182  /**
183  * @brief Assign elements to an array.
184  *
185  * Assign elements of array to values in @a v.
186  *
187  * @param __v Valarray to get values from.
188  */
189  valarray<_Tp>& operator=(const valarray<_Tp>& __v);
190 
191 #if __cplusplus >= 201103L
192  /**
193  * @brief Move assign elements to an array.
194  *
195  * Move assign elements of array to values in @a v.
196  *
197  * @param __v Valarray to get values from.
198  */
200 #endif
201 
202  /**
203  * @brief Assign elements to a value.
204  *
205  * Assign all elements of array to @a t.
206  *
207  * @param __t Value for elements.
208  */
209  valarray<_Tp>& operator=(const _Tp& __t);
210 
211  /**
212  * @brief Assign elements to an array subset.
213  *
214  * Assign elements of array to values in @a sa. Results are undefined
215  * if @a sa does not have the same size as this array.
216  *
217  * @param __sa Array slice to get values from.
218  */
220 
221  /**
222  * @brief Assign elements to an array subset.
223  *
224  * Assign elements of array to values in @a ga. Results are undefined
225  * if @a ga does not have the same size as this array.
226  *
227  * @param __ga Array slice to get values from.
228  */
230 
231  /**
232  * @brief Assign elements to an array subset.
233  *
234  * Assign elements of array to values in @a ma. Results are undefined
235  * if @a ma does not have the same size as this array.
236  *
237  * @param __ma Array slice to get values from.
238  */
240 
241  /**
242  * @brief Assign elements to an array subset.
243  *
244  * Assign elements of array to values in @a ia. Results are undefined
245  * if @a ia does not have the same size as this array.
246  *
247  * @param __ia Array slice to get values from.
248  */
250 
251 #if __cplusplus >= 201103L
252  /**
253  * @brief Assign elements to an initializer_list.
254  *
255  * Assign elements of array to values in @a __l. Results are undefined
256  * if @a __l does not have the same size as this array.
257  *
258  * @param __l initializer_list to get values from.
259  */
261 #endif
262 
263  template<class _Dom> valarray<_Tp>&
264  operator= (const _Expr<_Dom, _Tp>&);
265 
266  // _lib.valarray.access_ element access:
267  /**
268  * Return a reference to the i'th array element.
269  *
270  * @param __i Index of element to return.
271  * @return Reference to the i'th element.
272  */
273  _Tp& operator[](size_t __i);
274 
275  // _GLIBCXX_RESOLVE_LIB_DEFECTS
276  // 389. Const overload of valarray::operator[] returns by value.
277  const _Tp& operator[](size_t) const;
278 
279  // _lib.valarray.sub_ subset operations:
280  /**
281  * @brief Return an array subset.
282  *
283  * Returns a new valarray containing the elements of the array
284  * indicated by the slice argument. The new valarray has the same size
285  * as the input slice. @see slice.
286  *
287  * @param __s The source slice.
288  * @return New valarray containing elements in @a __s.
289  */
290  _Expr<_SClos<_ValArray, _Tp>, _Tp> operator[](slice __s) const;
291 
292  /**
293  * @brief Return a reference to an array subset.
294  *
295  * Returns a new valarray containing the elements of the array
296  * indicated by the slice argument. The new valarray has the same size
297  * as the input slice. @see slice.
298  *
299  * @param __s The source slice.
300  * @return New valarray containing elements in @a __s.
301  */
303 
304  /**
305  * @brief Return an array subset.
306  *
307  * Returns a slice_array referencing the elements of the array
308  * indicated by the slice argument. @see gslice.
309  *
310  * @param __s The source slice.
311  * @return Slice_array referencing elements indicated by @a __s.
312  */
313  _Expr<_GClos<_ValArray, _Tp>, _Tp> operator[](const gslice& __s) const;
314 
315  /**
316  * @brief Return a reference to an array subset.
317  *
318  * Returns a new valarray containing the elements of the array
319  * indicated by the gslice argument. The new valarray has
320  * the same size as the input gslice. @see gslice.
321  *
322  * @param __s The source gslice.
323  * @return New valarray containing elements in @a __s.
324  */
326 
327  /**
328  * @brief Return an array subset.
329  *
330  * Returns a new valarray containing the elements of the array
331  * indicated by the argument. The input is a valarray of bool which
332  * represents a bitmask indicating which elements should be copied into
333  * the new valarray. Each element of the array is added to the return
334  * valarray if the corresponding element of the argument is true.
335  *
336  * @param __m The valarray bitmask.
337  * @return New valarray containing elements indicated by @a __m.
338  */
340 
341  /**
342  * @brief Return a reference to an array subset.
343  *
344  * Returns a new mask_array referencing the elements of the array
345  * indicated by the argument. The input is a valarray of bool which
346  * represents a bitmask indicating which elements are part of the
347  * subset. Elements of the array are part of the subset if the
348  * corresponding element of the argument is true.
349  *
350  * @param __m The valarray bitmask.
351  * @return New valarray containing elements indicated by @a __m.
352  */
354 
355  /**
356  * @brief Return an array subset.
357  *
358  * Returns a new valarray containing the elements of the array
359  * indicated by the argument. The elements in the argument are
360  * interpreted as the indices of elements of this valarray to copy to
361  * the return valarray.
362  *
363  * @param __i The valarray element index list.
364  * @return New valarray containing elements in @a __s.
365  */
366  _Expr<_IClos<_ValArray, _Tp>, _Tp>
367  operator[](const valarray<size_t>& __i) const;
368 
369  /**
370  * @brief Return a reference to an array subset.
371  *
372  * Returns an indirect_array referencing the elements of the array
373  * indicated by the argument. The elements in the argument are
374  * interpreted as the indices of elements of this valarray to include
375  * in the subset. The returned indirect_array refers to these
376  * elements.
377  *
378  * @param __i The valarray element index list.
379  * @return Indirect_array referencing elements in @a __i.
380  */
382 
383  // _lib.valarray.unary_ unary operators:
384  /// Return a new valarray by applying unary + to each element.
385  typename _UnaryOp<__unary_plus>::_Rt operator+() const;
386 
387  /// Return a new valarray by applying unary - to each element.
388  typename _UnaryOp<__negate>::_Rt operator-() const;
389 
390  /// Return a new valarray by applying unary ~ to each element.
391  typename _UnaryOp<__bitwise_not>::_Rt operator~() const;
392 
393  /// Return a new valarray by applying unary ! to each element.
394  typename _UnaryOp<__logical_not>::_Rt operator!() const;
395 
396  // _lib.valarray.cassign_ computed assignment:
397  /// Multiply each element of array by @a t.
398  valarray<_Tp>& operator*=(const _Tp&);
399 
400  /// Divide each element of array by @a t.
401  valarray<_Tp>& operator/=(const _Tp&);
402 
403  /// Set each element e of array to e % @a t.
404  valarray<_Tp>& operator%=(const _Tp&);
405 
406  /// Add @a t to each element of array.
407  valarray<_Tp>& operator+=(const _Tp&);
408 
409  /// Subtract @a t to each element of array.
410  valarray<_Tp>& operator-=(const _Tp&);
411 
412  /// Set each element e of array to e ^ @a t.
413  valarray<_Tp>& operator^=(const _Tp&);
414 
415  /// Set each element e of array to e & @a t.
416  valarray<_Tp>& operator&=(const _Tp&);
417 
418  /// Set each element e of array to e | @a t.
419  valarray<_Tp>& operator|=(const _Tp&);
420 
421  /// Left shift each element e of array by @a t bits.
422  valarray<_Tp>& operator<<=(const _Tp&);
423 
424  /// Right shift each element e of array by @a t bits.
426 
427  /// Multiply elements of array by corresponding elements of @a v.
429 
430  /// Divide elements of array by corresponding elements of @a v.
432 
433  /// Modulo elements of array by corresponding elements of @a v.
435 
436  /// Add corresponding elements of @a v to elements of array.
438 
439  /// Subtract corresponding elements of @a v from elements of array.
441 
442  /// Logical xor corresponding elements of @a v with elements of array.
444 
445  /// Logical or corresponding elements of @a v with elements of array.
447 
448  /// Logical and corresponding elements of @a v with elements of array.
450 
451  /// Left shift elements of array by corresponding elements of @a v.
453 
454  /// Right shift elements of array by corresponding elements of @a v.
456 
457  template<class _Dom>
458  valarray<_Tp>& operator*=(const _Expr<_Dom, _Tp>&);
459  template<class _Dom>
460  valarray<_Tp>& operator/=(const _Expr<_Dom, _Tp>&);
461  template<class _Dom>
462  valarray<_Tp>& operator%=(const _Expr<_Dom, _Tp>&);
463  template<class _Dom>
464  valarray<_Tp>& operator+=(const _Expr<_Dom, _Tp>&);
465  template<class _Dom>
466  valarray<_Tp>& operator-=(const _Expr<_Dom, _Tp>&);
467  template<class _Dom>
468  valarray<_Tp>& operator^=(const _Expr<_Dom, _Tp>&);
469  template<class _Dom>
470  valarray<_Tp>& operator|=(const _Expr<_Dom, _Tp>&);
471  template<class _Dom>
472  valarray<_Tp>& operator&=(const _Expr<_Dom, _Tp>&);
473  template<class _Dom>
474  valarray<_Tp>& operator<<=(const _Expr<_Dom, _Tp>&);
475  template<class _Dom>
476  valarray<_Tp>& operator>>=(const _Expr<_Dom, _Tp>&);
477 
478  // _lib.valarray.members_ member functions:
479 #if __cplusplus >= 201103L
480  /// Swap.
481  void swap(valarray<_Tp>& __v) noexcept;
482 #endif
483 
484  /// Return the number of elements in array.
485  size_t size() const;
486 
487  /**
488  * @brief Return the sum of all elements in the array.
489  *
490  * Accumulates the sum of all elements into a Tp using +=. The order
491  * of adding the elements is unspecified.
492  */
493  _Tp sum() const;
494 
495  /// Return the minimum element using operator<().
496  _Tp min() const;
497 
498  /// Return the maximum element using operator<().
499  _Tp max() const;
500 
501  /**
502  * @brief Return a shifted array.
503  *
504  * A new valarray is constructed as a copy of this array with elements
505  * in shifted positions. For an element with index i, the new position
506  * is i - n. The new valarray has the same size as the current one.
507  * New elements without a value are set to 0. Elements whose new
508  * position is outside the bounds of the array are discarded.
509  *
510  * Positive arguments shift toward index 0, discarding elements [0, n).
511  * Negative arguments discard elements from the top of the array.
512  *
513  * @param __n Number of element positions to shift.
514  * @return New valarray with elements in shifted positions.
515  */
516  valarray<_Tp> shift (int __n) const;
517 
518  /**
519  * @brief Return a rotated array.
520  *
521  * A new valarray is constructed as a copy of this array with elements
522  * in shifted positions. For an element with index i, the new position
523  * is (i - n) % size(). The new valarray has the same size as the
524  * current one. Elements that are shifted beyond the array bounds are
525  * shifted into the other end of the array. No elements are lost.
526  *
527  * Positive arguments shift toward index 0, wrapping around the top.
528  * Negative arguments shift towards the top, wrapping around to 0.
529  *
530  * @param __n Number of element positions to rotate.
531  * @return New valarray with elements in shifted positions.
532  */
533  valarray<_Tp> cshift(int __n) const;
534 
535  /**
536  * @brief Apply a function to the array.
537  *
538  * Returns a new valarray with elements assigned to the result of
539  * applying func to the corresponding element of this array. The new
540  * array has the same size as this one.
541  *
542  * @param func Function of Tp returning Tp to apply.
543  * @return New valarray with transformed elements.
544  */
545  _Expr<_ValFunClos<_ValArray, _Tp>, _Tp> apply(_Tp func(_Tp)) const;
546 
547  /**
548  * @brief Apply a function to the array.
549  *
550  * Returns a new valarray with elements assigned to the result of
551  * applying func to the corresponding element of this array. The new
552  * array has the same size as this one.
553  *
554  * @param func Function of const Tp& returning Tp to apply.
555  * @return New valarray with transformed elements.
556  */
557  _Expr<_RefFunClos<_ValArray, _Tp>, _Tp> apply(_Tp func(const _Tp&)) const;
558 
559  /**
560  * @brief Resize array.
561  *
562  * Resize this array to @a size and set all elements to @a c. All
563  * references and iterators are invalidated.
564  *
565  * @param __size New array size.
566  * @param __c New value for all elements.
567  */
568  void resize(size_t __size, _Tp __c = _Tp());
569 
570  private:
571  size_t _M_size;
572  _Tp* __restrict__ _M_data;
573 
574  friend struct _Array<_Tp>;
575  };
576 
577 #if __cpp_deduction_guides >= 201606
578  template<typename _Tp, size_t _Nm>
579  valarray(const _Tp(&)[_Nm], size_t) -> valarray<_Tp>;
580 #endif
581 
582  template<typename _Tp>
583  inline const _Tp&
584  valarray<_Tp>::operator[](size_t __i) const
585  {
586  __glibcxx_requires_subscript(__i);
587  return _M_data[__i];
588  }
589 
590  template<typename _Tp>
591  inline _Tp&
593  {
594  __glibcxx_requires_subscript(__i);
595  return _M_data[__i];
596  }
597 
598  /// @} group numeric_arrays
599 
600 _GLIBCXX_END_NAMESPACE_VERSION
601 } // namespace
602 
603 #include <bits/valarray_after.h>
604 #include <bits/slice_array.h>
605 #include <bits/gslice.h>
606 #include <bits/gslice_array.h>
607 #include <bits/mask_array.h>
608 #include <bits/indirect_array.h>
609 
610 namespace std _GLIBCXX_VISIBILITY(default)
611 {
612 _GLIBCXX_BEGIN_NAMESPACE_VERSION
613 
614  /**
615  * @addtogroup numeric_arrays
616  * @{
617  */
618 
619  template<typename _Tp>
620  inline
621  valarray<_Tp>::valarray() : _M_size(0), _M_data(0) {}
622 
623  template<typename _Tp>
624  inline
626  : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
627  { std::__valarray_default_construct(_M_data, _M_data + __n); }
628 
629  template<typename _Tp>
630  inline
631  valarray<_Tp>::valarray(const _Tp& __t, size_t __n)
632  : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
633  { std::__valarray_fill_construct(_M_data, _M_data + __n, __t); }
634 
635  template<typename _Tp>
636  inline
637  valarray<_Tp>::valarray(const _Tp* __restrict__ __p, size_t __n)
638  : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
639  {
640  __glibcxx_assert(__p != 0 || __n == 0);
641  std::__valarray_copy_construct(__p, __p + __n, _M_data);
642  }
643 
644  template<typename _Tp>
645  inline
647  : _M_size(__v._M_size), _M_data(__valarray_get_storage<_Tp>(__v._M_size))
648  { std::__valarray_copy_construct(__v._M_data, __v._M_data + _M_size,
649  _M_data); }
650 
651 #if __cplusplus >= 201103L
652  template<typename _Tp>
653  inline
655  : _M_size(__v._M_size), _M_data(__v._M_data)
656  {
657  __v._M_size = 0;
658  __v._M_data = 0;
659  }
660 #endif
661 
662  template<typename _Tp>
663  inline
665  : _M_size(__sa._M_sz), _M_data(__valarray_get_storage<_Tp>(__sa._M_sz))
666  {
667  std::__valarray_copy_construct
668  (__sa._M_array, __sa._M_sz, __sa._M_stride, _Array<_Tp>(_M_data));
669  }
670 
671  template<typename _Tp>
672  inline
674  : _M_size(__ga._M_index.size()),
675  _M_data(__valarray_get_storage<_Tp>(_M_size))
676  {
677  std::__valarray_copy_construct
678  (__ga._M_array, _Array<size_t>(__ga._M_index),
679  _Array<_Tp>(_M_data), _M_size);
680  }
681 
682  template<typename _Tp>
683  inline
685  : _M_size(__ma._M_sz), _M_data(__valarray_get_storage<_Tp>(__ma._M_sz))
686  {
687  std::__valarray_copy_construct
688  (__ma._M_array, __ma._M_mask, _Array<_Tp>(_M_data), _M_size);
689  }
690 
691  template<typename _Tp>
692  inline
694  : _M_size(__ia._M_sz), _M_data(__valarray_get_storage<_Tp>(__ia._M_sz))
695  {
696  std::__valarray_copy_construct
697  (__ia._M_array, __ia._M_index, _Array<_Tp>(_M_data), _M_size);
698  }
699 
700 #if __cplusplus >= 201103L
701  template<typename _Tp>
702  inline
704  : _M_size(__l.size()), _M_data(__valarray_get_storage<_Tp>(__l.size()))
705  { std::__valarray_copy_construct(__l.begin(), __l.end(), _M_data); }
706 #endif
707 
708  template<typename _Tp> template<class _Dom>
709  inline
710  valarray<_Tp>::valarray(const _Expr<_Dom, _Tp>& __e)
711  : _M_size(__e.size()), _M_data(__valarray_get_storage<_Tp>(_M_size))
712  { std::__valarray_copy_construct(__e, _M_size, _Array<_Tp>(_M_data)); }
713 
714  template<typename _Tp>
715  inline
716  valarray<_Tp>::~valarray() _GLIBCXX_NOEXCEPT
717  {
718  std::__valarray_destroy_elements(_M_data, _M_data + _M_size);
719  std::__valarray_release_memory(_M_data);
720  }
721 
722  template<typename _Tp>
723  inline valarray<_Tp>&
725  {
726  // _GLIBCXX_RESOLVE_LIB_DEFECTS
727  // 630. arrays of valarray.
728  if (_M_size == __v._M_size)
729  std::__valarray_copy(__v._M_data, _M_size, _M_data);
730  else
731  {
732  if (_M_data)
733  {
734  std::__valarray_destroy_elements(_M_data, _M_data + _M_size);
735  std::__valarray_release_memory(_M_data);
736  }
737  _M_size = __v._M_size;
738  _M_data = __valarray_get_storage<_Tp>(_M_size);
739  std::__valarray_copy_construct(__v._M_data, __v._M_data + _M_size,
740  _M_data);
741  }
742  return *this;
743  }
744 
745 #if __cplusplus >= 201103L
746  template<typename _Tp>
747  inline valarray<_Tp>&
749  {
750  if (_M_data)
751  {
752  std::__valarray_destroy_elements(_M_data, _M_data + _M_size);
753  std::__valarray_release_memory(_M_data);
754  }
755  _M_size = __v._M_size;
756  _M_data = __v._M_data;
757  __v._M_size = 0;
758  __v._M_data = 0;
759  return *this;
760  }
761 
762  template<typename _Tp>
763  inline valarray<_Tp>&
765  {
766  // _GLIBCXX_RESOLVE_LIB_DEFECTS
767  // 630. arrays of valarray.
768  if (_M_size == __l.size())
769  std::__valarray_copy(__l.begin(), __l.size(), _M_data);
770  else
771  {
772  if (_M_data)
773  {
774  std::__valarray_destroy_elements(_M_data, _M_data + _M_size);
775  std::__valarray_release_memory(_M_data);
776  }
777  _M_size = __l.size();
778  _M_data = __valarray_get_storage<_Tp>(_M_size);
779  std::__valarray_copy_construct(__l.begin(), __l.begin() + _M_size,
780  _M_data);
781  }
782  return *this;
783  }
784 #endif
785 
786  template<typename _Tp>
787  inline valarray<_Tp>&
788  valarray<_Tp>::operator=(const _Tp& __t)
789  {
790  std::__valarray_fill(_M_data, _M_size, __t);
791  return *this;
792  }
793 
794  template<typename _Tp>
795  inline valarray<_Tp>&
797  {
798  __glibcxx_assert(_M_size == __sa._M_sz);
799  std::__valarray_copy(__sa._M_array, __sa._M_sz,
800  __sa._M_stride, _Array<_Tp>(_M_data));
801  return *this;
802  }
803 
804  template<typename _Tp>
805  inline valarray<_Tp>&
807  {
808  __glibcxx_assert(_M_size == __ga._M_index.size());
809  std::__valarray_copy(__ga._M_array, _Array<size_t>(__ga._M_index),
810  _Array<_Tp>(_M_data), _M_size);
811  return *this;
812  }
813 
814  template<typename _Tp>
815  inline valarray<_Tp>&
817  {
818  __glibcxx_assert(_M_size == __ma._M_sz);
819  std::__valarray_copy(__ma._M_array, __ma._M_mask,
820  _Array<_Tp>(_M_data), _M_size);
821  return *this;
822  }
823 
824  template<typename _Tp>
825  inline valarray<_Tp>&
827  {
828  __glibcxx_assert(_M_size == __ia._M_sz);
829  std::__valarray_copy(__ia._M_array, __ia._M_index,
830  _Array<_Tp>(_M_data), _M_size);
831  return *this;
832  }
833 
834  template<typename _Tp> template<class _Dom>
835  inline valarray<_Tp>&
836  valarray<_Tp>::operator=(const _Expr<_Dom, _Tp>& __e)
837  {
838  // _GLIBCXX_RESOLVE_LIB_DEFECTS
839  // 630. arrays of valarray.
840  if (_M_size == __e.size())
841  std::__valarray_copy(__e, _M_size, _Array<_Tp>(_M_data));
842  else
843  {
844  if (_M_data)
845  {
846  std::__valarray_destroy_elements(_M_data, _M_data + _M_size);
847  std::__valarray_release_memory(_M_data);
848  }
849  _M_size = __e.size();
850  _M_data = __valarray_get_storage<_Tp>(_M_size);
851  std::__valarray_copy_construct(__e, _M_size, _Array<_Tp>(_M_data));
852  }
853  return *this;
854  }
855 
856  template<typename _Tp>
857  inline _Expr<_SClos<_ValArray,_Tp>, _Tp>
859  {
860  typedef _SClos<_ValArray,_Tp> _Closure;
861  return _Expr<_Closure, _Tp>(_Closure (_Array<_Tp>(_M_data), __s));
862  }
863 
864  template<typename _Tp>
865  inline slice_array<_Tp>
867  { return slice_array<_Tp>(_Array<_Tp>(_M_data), __s); }
868 
869  template<typename _Tp>
870  inline _Expr<_GClos<_ValArray,_Tp>, _Tp>
872  {
873  typedef _GClos<_ValArray,_Tp> _Closure;
874  return _Expr<_Closure, _Tp>
875  (_Closure(_Array<_Tp>(_M_data), __gs._M_index->_M_index));
876  }
877 
878  template<typename _Tp>
879  inline gslice_array<_Tp>
881  {
882  return gslice_array<_Tp>
883  (_Array<_Tp>(_M_data), __gs._M_index->_M_index);
884  }
885 
886  template<typename _Tp>
887  inline valarray<_Tp>
889  {
890  size_t __s = 0;
891  size_t __e = __m.size();
892  for (size_t __i=0; __i<__e; ++__i)
893  if (__m[__i]) ++__s;
894  return valarray<_Tp>(mask_array<_Tp>(_Array<_Tp>(_M_data), __s,
895  _Array<bool> (__m)));
896  }
897 
898  template<typename _Tp>
899  inline mask_array<_Tp>
901  {
902  size_t __s = 0;
903  size_t __e = __m.size();
904  for (size_t __i=0; __i<__e; ++__i)
905  if (__m[__i]) ++__s;
906  return mask_array<_Tp>(_Array<_Tp>(_M_data), __s, _Array<bool>(__m));
907  }
908 
909  template<typename _Tp>
910  inline _Expr<_IClos<_ValArray,_Tp>, _Tp>
912  {
913  typedef _IClos<_ValArray,_Tp> _Closure;
914  return _Expr<_Closure, _Tp>(_Closure(*this, __i));
915  }
916 
917  template<typename _Tp>
918  inline indirect_array<_Tp>
920  {
921  return indirect_array<_Tp>(_Array<_Tp>(_M_data), __i.size(),
922  _Array<size_t>(__i));
923  }
924 
925 #if __cplusplus >= 201103L
926  template<class _Tp>
927  inline void
929  {
930  std::swap(_M_size, __v._M_size);
931  std::swap(_M_data, __v._M_data);
932  }
933 #endif
934 
935  template<class _Tp>
936  inline size_t
938  { return _M_size; }
939 
940  template<class _Tp>
941  inline _Tp
943  {
944  __glibcxx_assert(_M_size > 0);
945  return std::__valarray_sum(_M_data, _M_data + _M_size);
946  }
947 
948  template<class _Tp>
949  inline valarray<_Tp>
950  valarray<_Tp>::shift(int __n) const
951  {
952  valarray<_Tp> __ret;
953 
954  if (_M_size == 0)
955  return __ret;
956 
957  _Tp* __restrict__ __tmp_M_data =
958  std::__valarray_get_storage<_Tp>(_M_size);
959 
960  if (__n == 0)
961  std::__valarray_copy_construct(_M_data,
962  _M_data + _M_size, __tmp_M_data);
963  else if (__n > 0) // shift left
964  {
965  if (size_t(__n) > _M_size)
966  __n = int(_M_size);
967 
968  std::__valarray_copy_construct(_M_data + __n,
969  _M_data + _M_size, __tmp_M_data);
970  std::__valarray_default_construct(__tmp_M_data + _M_size - __n,
971  __tmp_M_data + _M_size);
972  }
973  else // shift right
974  {
975  if (-size_t(__n) > _M_size)
976  __n = -int(_M_size);
977 
978  std::__valarray_copy_construct(_M_data, _M_data + _M_size + __n,
979  __tmp_M_data - __n);
980  std::__valarray_default_construct(__tmp_M_data,
981  __tmp_M_data - __n);
982  }
983 
984  __ret._M_size = _M_size;
985  __ret._M_data = __tmp_M_data;
986  return __ret;
987  }
988 
989  template<class _Tp>
990  inline valarray<_Tp>
991  valarray<_Tp>::cshift(int __n) const
992  {
993  valarray<_Tp> __ret;
994 
995  if (_M_size == 0)
996  return __ret;
997 
998  _Tp* __restrict__ __tmp_M_data =
999  std::__valarray_get_storage<_Tp>(_M_size);
1000 
1001  if (__n == 0)
1002  std::__valarray_copy_construct(_M_data,
1003  _M_data + _M_size, __tmp_M_data);
1004  else if (__n > 0) // cshift left
1005  {
1006  if (size_t(__n) > _M_size)
1007  __n = int(__n % _M_size);
1008 
1009  std::__valarray_copy_construct(_M_data, _M_data + __n,
1010  __tmp_M_data + _M_size - __n);
1011  std::__valarray_copy_construct(_M_data + __n, _M_data + _M_size,
1012  __tmp_M_data);
1013  }
1014  else // cshift right
1015  {
1016  if (-size_t(__n) > _M_size)
1017  __n = -int(-size_t(__n) % _M_size);
1018 
1019  std::__valarray_copy_construct(_M_data + _M_size + __n,
1020  _M_data + _M_size, __tmp_M_data);
1021  std::__valarray_copy_construct(_M_data, _M_data + _M_size + __n,
1022  __tmp_M_data - __n);
1023  }
1024 
1025  __ret._M_size = _M_size;
1026  __ret._M_data = __tmp_M_data;
1027  return __ret;
1028  }
1029 
1030  template<class _Tp>
1031  inline void
1032  valarray<_Tp>::resize(size_t __n, _Tp __c)
1033  {
1034  // This complication is so to make valarray<valarray<T> > work
1035  // even though it is not required by the standard. Nobody should
1036  // be saying valarray<valarray<T> > anyway. See the specs.
1037  std::__valarray_destroy_elements(_M_data, _M_data + _M_size);
1038  if (_M_size != __n)
1039  {
1040  std::__valarray_release_memory(_M_data);
1041  _M_size = __n;
1042  _M_data = __valarray_get_storage<_Tp>(__n);
1043  }
1044  std::__valarray_fill_construct(_M_data, _M_data + __n, __c);
1045  }
1046 
1047  template<typename _Tp>
1048  inline _Tp
1050  {
1051  __glibcxx_assert(_M_size > 0);
1052  return *std::min_element(_M_data, _M_data + _M_size);
1053  }
1054 
1055  template<typename _Tp>
1056  inline _Tp
1058  {
1059  __glibcxx_assert(_M_size > 0);
1060  return *std::max_element(_M_data, _M_data + _M_size);
1061  }
1062 
1063  template<class _Tp>
1064  inline _Expr<_ValFunClos<_ValArray, _Tp>, _Tp>
1065  valarray<_Tp>::apply(_Tp func(_Tp)) const
1066  {
1067  typedef _ValFunClos<_ValArray, _Tp> _Closure;
1068  return _Expr<_Closure, _Tp>(_Closure(*this, func));
1069  }
1070 
1071  template<class _Tp>
1072  inline _Expr<_RefFunClos<_ValArray, _Tp>, _Tp>
1073  valarray<_Tp>::apply(_Tp func(const _Tp &)) const
1074  {
1075  typedef _RefFunClos<_ValArray, _Tp> _Closure;
1076  return _Expr<_Closure, _Tp>(_Closure(*this, func));
1077  }
1078 
1079 #define _DEFINE_VALARRAY_UNARY_OPERATOR(_Op, _Name) \
1080  template<typename _Tp> \
1081  inline typename valarray<_Tp>::template _UnaryOp<_Name>::_Rt \
1082  valarray<_Tp>::operator _Op() const \
1083  { \
1084  typedef _UnClos<_Name, _ValArray, _Tp> _Closure; \
1085  typedef typename __fun<_Name, _Tp>::result_type _Rt; \
1086  return _Expr<_Closure, _Rt>(_Closure(*this)); \
1087  }
1088 
1089  _DEFINE_VALARRAY_UNARY_OPERATOR(+, __unary_plus)
1090  _DEFINE_VALARRAY_UNARY_OPERATOR(-, __negate)
1091  _DEFINE_VALARRAY_UNARY_OPERATOR(~, __bitwise_not)
1092  _DEFINE_VALARRAY_UNARY_OPERATOR (!, __logical_not)
1093 
1094 #undef _DEFINE_VALARRAY_UNARY_OPERATOR
1095 
1096 #define _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(_Op, _Name) \
1097  template<class _Tp> \
1098  inline valarray<_Tp>& \
1099  valarray<_Tp>::operator _Op##=(const _Tp &__t) \
1100  { \
1101  _Array_augmented_##_Name(_Array<_Tp>(_M_data), _M_size, __t); \
1102  return *this; \
1103  } \
1104  \
1105  template<class _Tp> \
1106  inline valarray<_Tp>& \
1107  valarray<_Tp>::operator _Op##=(const valarray<_Tp> &__v) \
1108  { \
1109  __glibcxx_assert(_M_size == __v._M_size); \
1110  _Array_augmented_##_Name(_Array<_Tp>(_M_data), _M_size, \
1111  _Array<_Tp>(__v._M_data)); \
1112  return *this; \
1113  }
1114 
1115 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(+, __plus)
1116 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(-, __minus)
1117 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(*, __multiplies)
1118 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(/, __divides)
1119 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(%, __modulus)
1120 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(^, __bitwise_xor)
1121 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(&, __bitwise_and)
1122 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(|, __bitwise_or)
1123 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(<<, __shift_left)
1124 _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(>>, __shift_right)
1125 
1126 #undef _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT
1127 
1128 #define _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(_Op, _Name) \
1129  template<class _Tp> template<class _Dom> \
1130  inline valarray<_Tp>& \
1131  valarray<_Tp>::operator _Op##=(const _Expr<_Dom, _Tp>& __e) \
1132  { \
1133  _Array_augmented_##_Name(_Array<_Tp>(_M_data), __e, _M_size); \
1134  return *this; \
1135  }
1136 
1137 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(+, __plus)
1138 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(-, __minus)
1139 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(*, __multiplies)
1140 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(/, __divides)
1141 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(%, __modulus)
1142 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(^, __bitwise_xor)
1143 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(&, __bitwise_and)
1144 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(|, __bitwise_or)
1145 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(<<, __shift_left)
1146 _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(>>, __shift_right)
1147 
1148 #undef _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT
1149 
1150 
1151 #define _DEFINE_BINARY_OPERATOR(_Op, _Name) \
1152  template<typename _Tp> \
1153  inline _Expr<_BinClos<_Name, _ValArray, _ValArray, _Tp, _Tp>, \
1154  typename __fun<_Name, _Tp>::result_type> \
1155  operator _Op(const valarray<_Tp>& __v, const valarray<_Tp>& __w) \
1156  { \
1157  __glibcxx_assert(__v.size() == __w.size()); \
1158  typedef _BinClos<_Name, _ValArray, _ValArray, _Tp, _Tp> _Closure; \
1159  typedef typename __fun<_Name, _Tp>::result_type _Rt; \
1160  return _Expr<_Closure, _Rt>(_Closure(__v, __w)); \
1161  } \
1162  \
1163  template<typename _Tp> \
1164  inline _Expr<_BinClos<_Name, _ValArray,_Constant, _Tp, _Tp>, \
1165  typename __fun<_Name, _Tp>::result_type> \
1166  operator _Op(const valarray<_Tp>& __v, \
1167  const typename valarray<_Tp>::value_type& __t) \
1168  { \
1169  typedef _BinClos<_Name, _ValArray, _Constant, _Tp, _Tp> _Closure; \
1170  typedef typename __fun<_Name, _Tp>::result_type _Rt; \
1171  return _Expr<_Closure, _Rt>(_Closure(__v, __t)); \
1172  } \
1173  \
1174  template<typename _Tp> \
1175  inline _Expr<_BinClos<_Name, _Constant, _ValArray, _Tp, _Tp>, \
1176  typename __fun<_Name, _Tp>::result_type> \
1177  operator _Op(const typename valarray<_Tp>::value_type& __t, \
1178  const valarray<_Tp>& __v) \
1179  { \
1180  typedef _BinClos<_Name, _Constant, _ValArray, _Tp, _Tp> _Closure; \
1181  typedef typename __fun<_Name, _Tp>::result_type _Rt; \
1182  return _Expr<_Closure, _Rt>(_Closure(__t, __v)); \
1183  }
1184 
1185 _DEFINE_BINARY_OPERATOR(+, __plus)
1186 _DEFINE_BINARY_OPERATOR(-, __minus)
1187 _DEFINE_BINARY_OPERATOR(*, __multiplies)
1188 _DEFINE_BINARY_OPERATOR(/, __divides)
1189 _DEFINE_BINARY_OPERATOR(%, __modulus)
1190 _DEFINE_BINARY_OPERATOR(^, __bitwise_xor)
1191 _DEFINE_BINARY_OPERATOR(&, __bitwise_and)
1192 _DEFINE_BINARY_OPERATOR(|, __bitwise_or)
1193 _DEFINE_BINARY_OPERATOR(<<, __shift_left)
1194 _DEFINE_BINARY_OPERATOR(>>, __shift_right)
1195 _DEFINE_BINARY_OPERATOR(&&, __logical_and)
1196 _DEFINE_BINARY_OPERATOR(||, __logical_or)
1197 _DEFINE_BINARY_OPERATOR(==, __equal_to)
1198 _DEFINE_BINARY_OPERATOR(!=, __not_equal_to)
1199 _DEFINE_BINARY_OPERATOR(<, __less)
1200 _DEFINE_BINARY_OPERATOR(>, __greater)
1201 _DEFINE_BINARY_OPERATOR(<=, __less_equal)
1202 _DEFINE_BINARY_OPERATOR(>=, __greater_equal)
1203 
1204 #undef _DEFINE_BINARY_OPERATOR
1205 
1206 #if __cplusplus >= 201103L
1207  /**
1208  * @brief Return an iterator pointing to the first element of
1209  * the valarray.
1210  * @param __va valarray.
1211  */
1212  template<class _Tp>
1213  inline _Tp*
1215  { return std::__addressof(__va[0]); }
1216 
1217  /**
1218  * @brief Return an iterator pointing to the first element of
1219  * the const valarray.
1220  * @param __va valarray.
1221  */
1222  template<class _Tp>
1223  inline const _Tp*
1224  begin(const valarray<_Tp>& __va)
1225  { return std::__addressof(__va[0]); }
1226 
1227  /**
1228  * @brief Return an iterator pointing to one past the last element of
1229  * the valarray.
1230  * @param __va valarray.
1231  */
1232  template<class _Tp>
1233  inline _Tp*
1235  { return std::__addressof(__va[0]) + __va.size(); }
1236 
1237  /**
1238  * @brief Return an iterator pointing to one past the last element of
1239  * the const valarray.
1240  * @param __va valarray.
1241  */
1242  template<class _Tp>
1243  inline const _Tp*
1244  end(const valarray<_Tp>& __va)
1245  { return std::__addressof(__va[0]) + __va.size(); }
1246 #endif // C++11
1247 
1248  /// @} group numeric_arrays
1249 
1250 _GLIBCXX_END_NAMESPACE_VERSION
1251 } // namespace
1252 
1253 #endif /* _GLIBCXX_VALARRAY */
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
Definition: move.h:49
void swap(any &__x, any &__y) noexcept
Exchange the states of two any objects.
Definition: any:422
valarray< _Tp > & operator=(const mask_array< _Tp > &__ma)
Assign elements to an array subset.
Definition: valarray:816
_UnaryOp< __negate >::_Rt operator-() const
Return a new valarray by applying unary - to each element.
Definition: valarray:1090
valarray< _Tp > & operator=(valarray< _Tp > &&__v) noexcept
Move assign elements to an array.
Definition: valarray:748
valarray< _Tp > & operator^=(const _Tp &)
Set each element e of array to e ^ t.
Definition: valarray:1120
valarray< _Tp > & operator/=(const _Tp &)
Divide each element of array by t.
Definition: valarray:1118
valarray< _Tp > & operator|=(const valarray< _Tp > &)
Logical or corresponding elements of v with elements of array.
Definition: valarray:1122
_Tp & operator[](size_t __i)
Definition: valarray:592
mask_array< _Tp > operator[](const valarray< bool > &__m)
Return a reference to an array subset.
Definition: valarray:900
_Expr< _GClos< _ValArray, _Tp >, _Tp > operator[](const gslice &__s) const
Return an array subset.
Definition: valarray:871
_Tp * begin(valarray< _Tp > &__va)
Return an iterator pointing to the first element of the valarray.
Definition: valarray:1214
_Expr< _IClos< _ValArray, _Tp >, _Tp > operator[](const valarray< size_t > &__i) const
Return an array subset.
Definition: valarray:911
_UnaryOp< __unary_plus >::_Rt operator+() const
Return a new valarray by applying unary + to each element.
Definition: valarray:1089
valarray(const mask_array< _Tp > &)
Construct an array with the same size and values in ma.
Definition: valarray:684
valarray< _Tp > & operator*=(const _Tp &)
Multiply each element of array by t.
Definition: valarray:1117
size_t size() const
Return the number of elements in array.
Definition: valarray:937
_Tp * end(valarray< _Tp > &__va)
Return an iterator pointing to one past the last element of the valarray.
Definition: valarray:1234
_Tp min() const
Return the minimum element using operator<().
Definition: valarray:1049
valarray(const gslice_array< _Tp > &)
Construct an array with the same size and values in ga.
Definition: valarray:673
valarray< _Tp > & operator<<=(const _Tp &)
Left shift each element e of array by t bits.
Definition: valarray:1123
valarray(const indirect_array< _Tp > &)
Construct an array with the same size and values in ia.
Definition: valarray:693
valarray< _Tp > & operator/=(const valarray< _Tp > &)
Divide elements of array by corresponding elements of v.
Definition: valarray:1118
valarray< _Tp > & operator-=(const _Tp &)
Subtract t to each element of array.
Definition: valarray:1116
_Tp max() const
Return the maximum element using operator<().
Definition: valarray:1057
_Expr< _RefFunClos< _ValArray, _Tp >, _Tp > apply(_Tp func(const _Tp &)) const
Apply a function to the array.
Definition: valarray:1073
valarray< _Tp > cshift(int __n) const
Return a rotated array.
Definition: valarray:991
valarray< _Tp > & operator>>=(const _Tp &)
Right shift each element e of array by t bits.
Definition: valarray:1124
valarray< _Tp > & operator-=(const valarray< _Tp > &)
Subtract corresponding elements of v from elements of array.
Definition: valarray:1116
_Expr< _SClos< _ValArray, _Tp >, _Tp > operator[](slice __s) const
Return an array subset.
Definition: valarray:858
void swap(valarray< _Tp > &__v) noexcept
Swap.
Definition: valarray:928
_Expr< _ValFunClos< _ValArray, _Tp >, _Tp > apply(_Tp func(_Tp)) const
Apply a function to the array.
Definition: valarray:1065
valarray< _Tp > & operator%=(const _Tp &)
Set each element e of array to e % t.
Definition: valarray:1119
valarray< _Tp > & operator=(const slice_array< _Tp > &__sa)
Assign elements to an array subset.
Definition: valarray:796
valarray< _Tp > & operator+=(const _Tp &)
Add t to each element of array.
Definition: valarray:1115
valarray & operator=(initializer_list< _Tp > __l)
Assign elements to an initializer_list.
Definition: valarray:764
valarray< _Tp > & operator>>=(const valarray< _Tp > &)
Right shift elements of array by corresponding elements of v.
Definition: valarray:1124
valarray< _Tp > & operator=(const _Tp &__t)
Assign elements to a value.
Definition: valarray:788
valarray()
Construct an empty array.
Definition: valarray:621
_UnaryOp< __bitwise_not >::_Rt operator~() const
Return a new valarray by applying unary ~ to each element.
Definition: valarray:1091
_UnaryOp< __logical_not >::_Rt operator!() const
Return a new valarray by applying unary ! to each element.
Definition: valarray:1092
valarray< _Tp > & operator+=(const valarray< _Tp > &)
Add corresponding elements of v to elements of array.
Definition: valarray:1115
valarray< _Tp > operator[](const valarray< bool > &__m) const
Return an array subset.
Definition: valarray:888
void resize(size_t __size, _Tp __c=_Tp())
Resize array.
Definition: valarray:1032
valarray< _Tp > & operator^=(const valarray< _Tp > &)
Logical xor corresponding elements of v with elements of array.
Definition: valarray:1120
valarray< _Tp > & operator=(const gslice_array< _Tp > &__ga)
Assign elements to an array subset.
Definition: valarray:806
valarray(size_t)
Construct an array with n elements.
Definition: valarray:625
valarray(initializer_list< _Tp >)
Construct an array with an initializer_list of values.
Definition: valarray:703
valarray(const valarray &)
Copy constructor.
Definition: valarray:646
valarray(const _Tp &, size_t)
Construct an array with n elements initialized to t.
Definition: valarray:631
valarray(const slice_array< _Tp > &)
Construct an array with the same size and values in sa.
Definition: valarray:664
valarray< _Tp > & operator&=(const valarray< _Tp > &)
Logical and corresponding elements of v with elements of array.
Definition: valarray:1121
valarray< _Tp > & operator*=(const valarray< _Tp > &)
Multiply elements of array by corresponding elements of v.
Definition: valarray:1117
_Tp sum() const
Return the sum of all elements in the array.
Definition: valarray:942
valarray(valarray &&) noexcept
Move constructor.
Definition: valarray:654
slice_array< _Tp > operator[](slice __s)
Return a reference to an array subset.
Definition: valarray:866
valarray< _Tp > & operator=(const indirect_array< _Tp > &__ia)
Assign elements to an array subset.
Definition: valarray:826
valarray< _Tp > & operator%=(const valarray< _Tp > &)
Modulo elements of array by corresponding elements of v.
Definition: valarray:1119
valarray< _Tp > & operator&=(const _Tp &)
Set each element e of array to e & t.
Definition: valarray:1121
gslice_array< _Tp > operator[](const gslice &__s)
Return a reference to an array subset.
Definition: valarray:880
valarray< _Tp > shift(int __n) const
Return a shifted array.
Definition: valarray:950
valarray< _Tp > & operator|=(const _Tp &)
Set each element e of array to e | t.
Definition: valarray:1122
indirect_array< _Tp > operator[](const valarray< size_t > &__i)
Return a reference to an array subset.
Definition: valarray:919
valarray< _Tp > & operator=(const valarray< _Tp > &__v)
Assign elements to an array.
Definition: valarray:724
ISO C++ entities toplevel namespace is std.
constexpr auto size(const _Container &__cont) noexcept(noexcept(__cont.size())) -> decltype(__cont.size())
Return the size of a container.
Definition: range_access.h:245
initializer_list
Smart array designed to support numeric processing.
Definition: valarray:128
valarray(const _Tp *__restrict__, size_t)
Construct an array initialized to the first n elements of t.
Reference to one-dimensional subset of an array.
Definition: slice_array.h:129
Reference to multi-dimensional subset of an array.
Definition: gslice_array.h:61
Reference to selected subset of an array.
Definition: mask_array.h:63
Reference to arbitrary subset of an array.
Class defining multi-dimensional subset of an array.
Definition: gslice.h:65
Class defining one-dimensional subset of an array.
Definition: slice_array.h:60