libstdc++-v3/testsuite/26_numerics/valarray/30416.cc

   1 // 2007-01-11  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2007, 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 #include <valarray>
  22 #include <testsuite_hooks.h>
  23
  24 bool
  25 comp_vala(const std::valarray<int>& v1, const std::valarray<int>& v2)
  26 {
  27   if (v1.size() == v2.size())
  28     {
  29       for (size_t i = 0; i < v1.size(); ++i)
  30         if (v1[i] != v2[i])
  31           return false;
  32       return true;
  33     }
  34   return false;
  35 }
  36
  37 void
  38 init_vala(std::valarray<int>& v, size_t first, size_t last, int val)
  39 {
  40   for (size_t i = first; i <= last; ++i)
  41     v[i] = val++;
  42 }
  43
  44 // libstdc++/30416
  45 void test01()
  46 {
  47   bool test __attribute__((unused)) = true;
  48   using namespace std;
  49
  50   // shift
  51   valarray<int> v1;
  52   valarray<int> v1_ris(v1.shift(0));
  53   VERIFY( comp_vala(v1, v1_ris) );
  54
  55   valarray<int> v2;
  56   valarray<int> v2_ris(v2.shift(10));
  57   VERIFY( comp_vala(v2, v2_ris) );
  58
  59   valarray<int> v3;
  60   valarray<int> v3_ris(v3.shift(-10));
  61   VERIFY( comp_vala(v3, v3_ris) );
  62
  63   valarray<int> v4(10);
  64   valarray<int> v4_ris(v4.shift(0));
  65   VERIFY( comp_vala(v4, v4_ris) );
  66
  67   valarray<int> v5(10);
  68   init_vala(v5, 0, 9, 1);
  69   valarray<int> v5_ref(10);
  70
  71   valarray<int> v5_ris(v5.shift(16));
  72   VERIFY( comp_vala(v5_ris, v5_ref) );
  73
  74   valarray<int> v6(10);
  75   init_vala(v6, 0, 9, 1);
  76   valarray<int> v6_ref(10);
  77
  78   valarray<int> v6_ris(v6.shift(-16));
  79   VERIFY( comp_vala(v6_ris, v6_ref) );
  80
  81   valarray<int> v7(10);
  82   init_vala(v7, 0, 9, 1);
  83   valarray<int> v7_ref(10);
  84
  85   valarray<int> v7_ris(v7.shift(10));
  86   VERIFY( comp_vala(v7_ris, v7_ref) );
  87
  88   valarray<int> v8(10);
  89   init_vala(v8, 0, 9, 1);
  90   valarray<int> v8_ref(10);
  91
  92   valarray<int> v8_ris(v8.shift(-10));
  93   VERIFY( comp_vala(v8_ris, v8_ref) );
  94
  95   valarray<int> v9(10);
  96   init_vala(v9, 0, 9, 1);
  97   valarray<int> v9_ref(10);
  98   init_vala(v9_ref, 0, 3, 7);
  99
 100   valarray<int> v9_ris(v9.shift(6));
 101   VERIFY( comp_vala(v9_ris, v9_ref) );
 102
 103   valarray<int> v10(10);
 104   init_vala(v10, 0, 9, 1);
 105   valarray<int> v10_ref(10);
 106   init_vala(v10_ref, 6, 9, 1);
 107
 108   valarray<int> v10_ris(v10.shift(-6));
 109   VERIFY( comp_vala(v10_ris, v10_ref) );
 110
 111   // cshift
 112   valarray<int> v11;
 113   valarray<int> v11_ris(v11.cshift(0));
 114   VERIFY( comp_vala(v11, v11_ris) );
 115
 116   valarray<int> v12;
 117   valarray<int> v12_ris(v12.cshift(10));
 118   VERIFY( comp_vala(v12, v12_ris) );
 119
 120   valarray<int> v13;
 121   valarray<int> v13_ris(v13.cshift(-10));
 122   VERIFY( comp_vala(v13, v13_ris) );
 123
 124   valarray<int> v14(10);
 125   valarray<int> v14_ris(v14.cshift(0));
 126   VERIFY( comp_vala(v14, v14_ris) );
 127
 128   valarray<int> v15(10);
 129   init_vala(v15, 0, 9, 1);
 130   valarray<int> v15_ref(10);
 131   init_vala(v15_ref, 0, 3, 7);
 132   init_vala(v15_ref, 4, 9, 1);
 133
 134   valarray<int> v15_ris(v15.cshift(16));
 135   VERIFY( comp_vala(v15_ris, v15_ref) );
 136
 137   valarray<int> v16(10);
 138   init_vala(v16, 0, 9, 1);
 139   valarray<int> v16_ref(10);
 140   init_vala(v16_ref, 0, 5, 5);
 141   init_vala(v16_ref, 6, 9, 1);
 142
 143   valarray<int> v16_ris(v16.cshift(-16));
 144   VERIFY( comp_vala(v16_ris, v16_ref) );
 145
 146   valarray<int> v17(10);
 147   init_vala(v17, 0, 9, 1);
 148
 149   valarray<int> v17_ris(v15.cshift(10));
 150   VERIFY( comp_vala(v17, v17_ris) );
 151
 152   valarray<int> v18(10);
 153   init_vala(v18, 0, 9, 1);
 154
 155   valarray<int> v18_ris(v18.cshift(-10));
 156   VERIFY( comp_vala(v18, v18_ris) );
 157
 158   valarray<int> v19(10);
 159   init_vala(v19, 0, 9, 1);
 160   valarray<int> v19_ref(10);
 161   init_vala(v19_ref, 0, 3, 7);
 162   init_vala(v19_ref, 4, 9, 1);
 163
 164   valarray<int> v19_ris(v15.cshift(6));
 165   VERIFY( comp_vala(v19_ris, v19_ref) );
 166
 167   valarray<int> v20(10);
 168   init_vala(v20, 0, 9, 1);
 169   valarray<int> v20_ref(10);
 170   init_vala(v20_ref, 0, 5, 5);
 171   init_vala(v20_ref, 6, 9, 1);
 172
 173   valarray<int> v20_ris(v20.cshift(-6));
 174   VERIFY( comp_vala(v20_ris, v20_ref) );
 175 }
 176
 177 int main()
 178 {
 179   test01();
 180   return 0;
 181 }