libstdc++-v3/testsuite/26_numerics/iota/1.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // 2008-06-27  Paolo Carlini  <paolo.carlini@oracle.com>
   4
   5 // Copyright (C) 2008-2023 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <numeric>
  23 #include <algorithm>
  24 #include <testsuite_hooks.h>
  25
  26 int A[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
  27 int B[] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
  28 int C[] = {-9, -8, -7, -6, -5, -4, -3, -2, -1};
  29 const int N = sizeof(A) / sizeof(int);
  30
  31 void
  32 test01()
  33 {
  34   std::iota(A, A + N, 1);
  35   VERIFY( std::equal(A, A + N, B) );
  36
  37   std::iota(A, A + N, -9);
  38   VERIFY( std::equal(A, A + N, C) );
  39 }
  40
  41 int
  42 main()
  43 {
  44   test01();
  45   return 0;
  46 }