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

   1 // 2007-01-11  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2007 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  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 #include <valarray>
  31 #include <testsuite_hooks.h>
  32
  33 bool
  34 comp_vala(const std::valarray<int>& v1, const std::valarray<int>& v2)
  35 {
  36   if (v1.size() == v2.size())
  37     {
  38       for (size_t i = 0; i < v1.size(); ++i)
  39         if (v1[i] != v2[i])
  40           return false;
  41       return true;
  42     }
  43   return false;
  44 }
  45
  46 void
  47 init_vala(std::valarray<int>& v, size_t first, size_t last, int val)
  48 {
  49   for (size_t i = first; i <= last; ++i)
  50     v[i] = val++;
  51 }
  52
  53 // libstdc++/30416
  54 void test01()
  55 {
  56   bool test __attribute__((unused)) = true;
  57   using namespace std;
  58
  59   // shift
  60   valarray<int> v1;
  61   valarray<int> v1_ris(v1.shift(0));
  62   VERIFY( comp_vala(v1, v1_ris) );
  63
  64   valarray<int> v2;
  65   valarray<int> v2_ris(v2.shift(10));
  66   VERIFY( comp_vala(v2, v2_ris) );
  67
  68   valarray<int> v3;
  69   valarray<int> v3_ris(v3.shift(-10));
  70   VERIFY( comp_vala(v3, v3_ris) );
  71
  72   valarray<int> v4(10);
  73   valarray<int> v4_ris(v4.shift(0));
  74   VERIFY( comp_vala(v4, v4_ris) );
  75
  76   valarray<int> v5(10);
  77   init_vala(v5, 0, 9, 1);
  78   valarray<int> v5_ref(10);
  79
  80   valarray<int> v5_ris(v5.shift(16));
  81   VERIFY( comp_vala(v5_ris, v5_ref) );
  82
  83   valarray<int> v6(10);
  84   init_vala(v6, 0, 9, 1);
  85   valarray<int> v6_ref(10);
  86
  87   valarray<int> v6_ris(v6.shift(-16));
  88   VERIFY( comp_vala(v6_ris, v6_ref) );
  89
  90   valarray<int> v7(10);
  91   init_vala(v7, 0, 9, 1);
  92   valarray<int> v7_ref(10);
  93
  94   valarray<int> v7_ris(v7.shift(10));
  95   VERIFY( comp_vala(v7_ris, v7_ref) );
  96
  97   valarray<int> v8(10);
  98   init_vala(v8, 0, 9, 1);
  99   valarray<int> v8_ref(10);
 100
 101   valarray<int> v8_ris(v8.shift(-10));
 102   VERIFY( comp_vala(v8_ris, v8_ref) );
 103
 104   valarray<int> v9(10);
 105   init_vala(v9, 0, 9, 1);
 106   valarray<int> v9_ref(10);
 107   init_vala(v9_ref, 0, 3, 7);
 108
 109   valarray<int> v9_ris(v9.shift(6));
 110   VERIFY( comp_vala(v9_ris, v9_ref) );
 111
 112   valarray<int> v10(10);
 113   init_vala(v10, 0, 9, 1);
 114   valarray<int> v10_ref(10);
 115   init_vala(v10_ref, 6, 9, 1);
 116
 117   valarray<int> v10_ris(v10.shift(-6));
 118   VERIFY( comp_vala(v10_ris, v10_ref) );
 119
 120   // cshift
 121   valarray<int> v11;
 122   valarray<int> v11_ris(v11.cshift(0));
 123   VERIFY( comp_vala(v11, v11_ris) );
 124
 125   valarray<int> v12;
 126   valarray<int> v12_ris(v12.cshift(10));
 127   VERIFY( comp_vala(v12, v12_ris) );
 128
 129   valarray<int> v13;
 130   valarray<int> v13_ris(v13.cshift(-10));
 131   VERIFY( comp_vala(v13, v13_ris) );
 132
 133   valarray<int> v14(10);
 134   valarray<int> v14_ris(v14.cshift(0));
 135   VERIFY( comp_vala(v14, v14_ris) );
 136
 137   valarray<int> v15(10);
 138   init_vala(v15, 0, 9, 1);
 139   valarray<int> v15_ref(10);
 140   init_vala(v15_ref, 0, 3, 7);
 141   init_vala(v15_ref, 4, 9, 1);
 142
 143   valarray<int> v15_ris(v15.cshift(16));
 144   VERIFY( comp_vala(v15_ris, v15_ref) );
 145
 146   valarray<int> v16(10);
 147   init_vala(v16, 0, 9, 1);
 148   valarray<int> v16_ref(10);
 149   init_vala(v16_ref, 0, 5, 5);
 150   init_vala(v16_ref, 6, 9, 1);
 151
 152   valarray<int> v16_ris(v16.cshift(-16));
 153   VERIFY( comp_vala(v16_ris, v16_ref) );
 154
 155   valarray<int> v17(10);
 156   init_vala(v17, 0, 9, 1);
 157
 158   valarray<int> v17_ris(v15.cshift(10));
 159   VERIFY( comp_vala(v17, v17_ris) );
 160
 161   valarray<int> v18(10);
 162   init_vala(v18, 0, 9, 1);
 163
 164   valarray<int> v18_ris(v18.cshift(-10));
 165   VERIFY( comp_vala(v18, v18_ris) );
 166
 167   valarray<int> v19(10);
 168   init_vala(v19, 0, 9, 1);
 169   valarray<int> v19_ref(10);
 170   init_vala(v19_ref, 0, 3, 7);
 171   init_vala(v19_ref, 4, 9, 1);
 172
 173   valarray<int> v19_ris(v15.cshift(6));
 174   VERIFY( comp_vala(v19_ris, v19_ref) );
 175
 176   valarray<int> v20(10);
 177   init_vala(v20, 0, 9, 1);
 178   valarray<int> v20_ref(10);
 179   init_vala(v20_ref, 0, 5, 5);
 180   init_vala(v20_ref, 6, 9, 1);
 181
 182   valarray<int> v20_ris(v20.cshift(-6));
 183   VERIFY( comp_vala(v20_ris, v20_ref) );
 184 }
 185
 186 int main()
 187 {
 188   test01();
 189   return 0;
 190 }