libcxx/test/std/containers/associative/multiset/empty.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 // <set>
  10
  11 // class multiset
  12
  13 // bool empty() const;
  14
  15 #include <set>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19 #include "min_allocator.h"
  20
  21 int main(int, char**)
  22 {
  23     {
  24     typedef std::multiset<int> M;
  25     M m;
  26     assert(m.empty());
  27     m.insert(M::value_type(1));
  28     assert(!m.empty());
  29     m.clear();
  30     assert(m.empty());
  31     }
  32 #if TEST_STD_VER >= 11
  33     {
  34     typedef std::multiset<int, std::less<int>, min_allocator<int>> M;
  35     M m;
  36     assert(m.empty());
  37     m.insert(M::value_type(1));
  38     assert(!m.empty());
  39     m.clear();
  40     assert(m.empty());
  41     }
  42 #endif
  43
  44   return 0;
  45 }