libcxx/test/std/containers/associative/multimap/multimap.modifiers/insert_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 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_test() {
  23     typedef Container M;
  24     typedef typename M::iterator R;
  25     typedef typename M::value_type VT;
  26     M m;
  27     const VT v1(2, 2.5);
  28     R r = m.insert(v1);
  29     assert(r == m.begin());
  30     assert(m.size() == 1);
  31     assert(r->first == 2);
  32     assert(r->second == 2.5);
  33
  34     const VT v2(1, 1.5);
  35     r = m.insert(v2);
  36     assert(r == m.begin());
  37     assert(m.size() == 2);
  38     assert(r->first == 1);
  39     assert(r->second == 1.5);
  40
  41     const VT v3(3, 3.5);
  42     r = m.insert(v3);
  43     assert(r == std::prev(m.end()));
  44     assert(m.size() == 3);
  45     assert(r->first == 3);
  46     assert(r->second == 3.5);
  47
  48     const VT v4(3, 3.5);
  49     r = m.insert(v4);
  50     assert(r == std::prev(m.end()));
  51     assert(m.size() == 4);
  52     assert(r->first == 3);
  53     assert(r->second == 3.5);
  54 }
  55
  56 int main(int, char**)
  57 {
  58     {
  59         typedef std::multimap<int, double> Container;
  60         do_insert_test<Container>();
  61     }
  62 #if TEST_STD_VER >= 11
  63     {
  64         typedef std::multimap<int, double, std::less<int>, min_allocator<std::pair<const int, double>>> Container;
  65         do_insert_test<Container>();
  66     }
  67 #endif
  68
  69   return 0;
  70 }