libcxx/test/std/containers/associative/multimap/multimap.modifiers/insert_iter_cv.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 // iterator insert(const_iterator position, const value_type& v);
  14
  15 #include <map>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19 #include "min_allocator.h"
  20
  21 template <class Container>
  22 void do_insert_hint_test()
  23 {
  24     typedef Container M;
  25     typedef typename M::iterator R;
  26     typedef typename M::value_type VT;
  27     M m;
  28     const VT v1(2, 2.5);
  29     R r = m.insert(m.end(), v1);
  30     assert(r == m.begin());
  31     assert(m.size() == 1);
  32     assert(r->first == 2);
  33     assert(r->second == 2.5);
  34
  35     const VT v2(1, 1.5);
  36     r = m.insert(m.end(), v2);
  37     assert(r == m.begin());
  38     assert(m.size() == 2);
  39     assert(r->first == 1);
  40     assert(r->second == 1.5);
  41
  42     const VT v3(3, 3.5);
  43     r = m.insert(m.end(), v3);
  44     assert(r == std::prev(m.end()));
  45     assert(m.size() == 3);
  46     assert(r->first == 3);
  47     assert(r->second == 3.5);
  48
  49     const VT v4(3, 4.5);
  50     r = m.insert(std::prev(m.end()), v4);
  51     assert(r == std::prev(m.end(), 2));
  52     assert(m.size() == 4);
  53     assert(r->first == 3);
  54     assert(r->second == 4.5);
  55 }
  56
  57 int main(int, char**)
  58 {
  59     do_insert_hint_test<std::multimap<int, double> >();
  60 #if TEST_STD_VER >= 11
  61     {
  62         typedef std::multimap<int, double, std::less<int>, min_allocator<std::pair<const int, double>>> M;
  63         do_insert_hint_test<M>();
  64     }
  65 #endif
  66
  67   return 0;
  68 }