libstdc++-v3/testsuite/25_algorithms/copy/94013.cc

   1 // Copyright (C) 2020-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run }
  19
  20 #include <algorithm>
  21 #include <testsuite_hooks.h>
  22
  23 void
  24 test01()
  25 {
  26   volatile int i[2] = { 1, 2 };
  27   volatile int j[2] = { 0, 0 };
  28   int k[2] = { 0, 0 };
  29
  30   std::copy(i, i+2, j);
  31   VERIFY( j[0] == 1 && j[1] == 2 );
  32   std::copy(i, i+2, k);
  33   VERIFY( k[0] == 1 && k[1] == 2 );
  34   std::copy(k+1, k+2, i);
  35   VERIFY( i[0] == 2 );
  36
  37   const volatile int* cj = j;
  38   std::copy(cj, cj+2, i);
  39   VERIFY( i[0] == 1 && i[1] == 2 );
  40   std::copy(cj+1, cj+2, k);
  41   VERIFY( k[0] == 2 );
  42   const int* ck = k;
  43   std::copy(ck, ck+2, i);
  44   VERIFY( i[0] == 2 && i[1] == 2 );
  45 }
  46
  47 void
  48 test02()
  49 {
  50 #if __cplusplus > 201703L
  51   volatile int i[2] = { 1, 2 };
  52   volatile int j[2] = { 0, 0 };
  53   int k[2] = { 0, 0 };
  54
  55   std::ranges::copy(i, i+2, j);
  56   VERIFY( j[0] == 1 && j[1] == 2 );
  57   std::ranges::copy(i, i+2, k);
  58   VERIFY( k[0] == 1 && k[1] == 2 );
  59   std::ranges::copy(k+1, k+2, i);
  60   VERIFY( i[0] == 2 );
  61
  62   const volatile int* cj = j;
  63   std::ranges::copy(cj, cj+2, i);
  64   VERIFY( i[0] == 1 && i[1] == 2 );
  65   std::ranges::copy(cj+1, cj+2, k);
  66   VERIFY( k[0] == 2 );
  67   const int* ck = k;
  68   std::ranges::copy(ck, ck+2, i);
  69   VERIFY( i[0] == 2 && i[1] == 2 );
  70 #endif
  71 }
  72
  73 int
  74 main()
  75 {
  76   test01();
  77   test02();
  78 }