1// 2004-01-03  Jerry Quinn  <jlquinn@optonline.net>
2
3// Copyright (C) 2004, 2009 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// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20
21// PR 3247
22
23// This is DR-253.  Test for accessible assignment-operators.
24#include <valarray>
25#include <testsuite_hooks.h>
26
27bool check_array(std::valarray<double>& a, double b[])
28{
29  for (unsigned int i=0; i < a.size(); i++)
30    if (a[i] != b[i]) return false;
31  return true;
32}
33
34int main()
35{
36  std::valarray<double> val_d(10);  //  0 1 2 3 4 5 6 7 8 9
37  std::valarray<double> val_d1(10); // 10 9 8 7 6 5 4 3 2 1
38
39  for (int i=0; i< 10; i++) { val_d[i] = 10;  val_d1[i] = i; }
40  std::valarray<double> val_c(val_d);
41  std::valarray<double> val_f(val_d);
42  std::valarray<double> val_g(val_d);
43
44  std::slice slc(1, 3, 3);	// 1 4 7
45  val_d[slc] = val_d1[slc];
46
47  double ans1[10] = {10, 1, 10, 10, 4, 10, 10, 7, 10, 10};
48  VERIFY(check_array(val_d, ans1));
49
50  std::valarray<std::size_t> val_size(2);
51  std::valarray<std::size_t> val_stride(2);
52  val_size[0] = 2;   val_size[1] = 3;
53  val_stride[0] = 4; val_stride[1] = 1;
54
55  std::gslice gslc(1, val_size, val_stride);
56  val_c[gslc] = val_d1[gslc];
57
58  double ans2[10] = {10, 1, 2, 3, 10, 5, 6, 7, 10, 10};
59  VERIFY(check_array(val_c, ans2));
60
61  std::valarray<bool> val_b(false, 10);
62  val_b[2] = val_b[6] = val_b[9] = true;
63  val_f[val_b] = val_d1[val_b];
64
65  double ans3[10] = {10, 10, 2, 10, 10, 10, 6, 10, 10, 9};
66  VERIFY(check_array(val_f, ans3));
67
68  size_t addr[] = {1, 2, 3, 4, 5};
69  size_t addr1[] = {2, 7, 1, 9, 4};
70  std::valarray<std::size_t> val_indirect(addr, 5);
71  std::valarray<std::size_t> val_indirect1(addr1, 5);
72  val_g[val_indirect] = val_d1[val_indirect1];
73
74  double ans4[10] = {10, 2, 7, 1, 9, 4, 10, 10, 10, 10};
75  VERIFY(check_array(val_g, ans4));
76
77  return 0;
78};
79