libcxx/test/std/containers/associative/map/map.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 map
  12
  13 // pair<iterator, bool> 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_cv_test()
  23 {
  24     typedef Container M;
  25     typedef std::pair<typename M::iterator, bool> R;
  26     typedef typename M::value_type VT;
  27     M m;
  28
  29     const VT v1(2, 2.5);
  30     R r = m.insert(v1);
  31     assert(r.second);
  32     assert(r.first == m.begin());
  33     assert(m.size() == 1);
  34     assert(r.first->first == 2);
  35     assert(r.first->second == 2.5);
  36
  37     const VT v2(1, 1.5);
  38     r = m.insert(v2);
  39     assert(r.second);
  40     assert(r.first == m.begin());
  41     assert(m.size() == 2);
  42     assert(r.first->first == 1);
  43     assert(r.first->second == 1.5);
  44
  45     const VT v3(3, 3.5);
  46     r = m.insert(v3);
  47     assert(r.second);
  48     assert(r.first == std::prev(m.end()));
  49     assert(m.size() == 3);
  50     assert(r.first->first == 3);
  51     assert(r.first->second == 3.5);
  52
  53     const VT v4(3, 4.5);
  54     r = m.insert(v4);
  55     assert(!r.second);
  56     assert(r.first == std::prev(m.end()));
  57     assert(m.size() == 3);
  58     assert(r.first->first == 3);
  59     assert(r.first->second == 3.5);
  60 }
  61
  62 int main(int, char**)
  63 {
  64     do_insert_cv_test<std::map<int, double> >();
  65 #if TEST_STD_VER >= 11
  66     {
  67         typedef std::map<int, double, std::less<int>, min_allocator<std::pair<const int, double>>> M;
  68         do_insert_cv_test<M>();
  69     }
  70 #endif
  71
  72   return 0;
  73 }