libcxx/test/std/containers/associative/multimap/multimap.cons/default.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <map>
  10
  11 // class multimap
  12
  13 // multimap();
  14
  15 #include <map>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19 #include "min_allocator.h"
  20
  21 int main(int, char**)
  22 {
  23     {
  24     std::multimap<int, double> m;
  25     assert(m.empty());
  26     assert(m.begin() == m.end());
  27     }
  28 #if TEST_STD_VER >= 11
  29     {
  30     std::multimap<int, double, std::less<int>, min_allocator<std::pair<const int, double>>> m;
  31     assert(m.empty());
  32     assert(m.begin() == m.end());
  33     }
  34     {
  35     typedef explicit_allocator<std::pair<const int, double>> A;
  36         {
  37         std::multimap<int, double, std::less<int>, A> m;
  38         assert(m.empty());
  39         assert(m.begin() == m.end());
  40         }
  41         {
  42         A a;
  43         std::multimap<int, double, std::less<int>, A> m(a);
  44         assert(m.empty());
  45         assert(m.begin() == m.end());
  46         }
  47     }
  48     {
  49     std::multimap<int, double> m = {};
  50     assert(m.empty());
  51     assert(m.begin() == m.end());
  52     }
  53 #endif
  54
  55   return 0;
  56 }