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