libcxx/test/std/containers/associative/multiset/multiset.cons/iter_iter_comp.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 // template <class InputIterator>
  14 //     multiset(InputIterator first, InputIterator last, const value_compare& comp);
  15
  16 #include <set>
  17 #include <cassert>
  18
  19 #include "test_macros.h"
  20 #include "test_iterators.h"
  21 #include "../../../test_compare.h"
  22
  23 int main(int, char**)
  24 {
  25     typedef int V;
  26     V ar[] =
  27     {
  28         1,
  29         1,
  30         1,
  31         2,
  32         2,
  33         2,
  34         3,
  35         3,
  36         3
  37     };
  38     typedef test_less<V> C;
  39     std::multiset<V, C> m(cpp17_input_iterator<const V*>(ar),
  40                      cpp17_input_iterator<const V*>(ar+sizeof(ar)/sizeof(ar[0])), C(5));
  41     assert(m.value_comp() == C(5));
  42     assert(m.size() == 9);
  43     assert(std::distance(m.begin(), m.end()) == 9);
  44     assert(*std::next(m.begin(), 0) == 1);
  45     assert(*std::next(m.begin(), 1) == 1);
  46     assert(*std::next(m.begin(), 2) == 1);
  47     assert(*std::next(m.begin(), 3) == 2);
  48     assert(*std::next(m.begin(), 4) == 2);
  49     assert(*std::next(m.begin(), 5) == 2);
  50     assert(*std::next(m.begin(), 6) == 3);
  51     assert(*std::next(m.begin(), 7) == 3);
  52     assert(*std::next(m.begin(), 8) == 3);
  53
  54   return 0;
  55 }