libstdc++-v3/testsuite/23_containers/unordered_map/init-list.cc

   1 // Copyright (C) 2008-2023 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
  19 // { dg-do run { target c++11 } }
  20
  21 #include <unordered_map>
  22 #include <testsuite_hooks.h>
  23
  24 using namespace std;
  25
  26 void test01()
  27 {
  28   unordered_map<int,double> m({ { 1, 1.0 }, { 2, 2.0 }, { 42, 237.0 } });
  29   VERIFY(m.size() == 3);
  30   VERIFY(m[1] == 1.0);
  31   VERIFY(m[2] == 2.0);
  32   VERIFY(m[42] == 237.0);
  33
  34   m = { {5, 55.0}, { 6, 66.0 } };
  35   VERIFY(m.size() == 2);
  36   VERIFY(m[5] == 55.0);
  37   VERIFY(m[6] == 66.0);
  38
  39   m.insert({ { 7, 77.0 }, { 8, 88.0 } });
  40   VERIFY(m.size() == 4);
  41   VERIFY(m[5] == 55.0);
  42   VERIFY(m[6] == 66.0);
  43   VERIFY(m[7] == 77.0);
  44   VERIFY(m[8] == 88.0);
  45 }
  46
  47 int main()
  48 {
  49   __gnu_test::set_memory_limits();
  50   test01();
  51 }