libcxx/test/std/containers/associative/map/map.ops/count2.compile.fail.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 // UNSUPPORTED: c++03, c++11
  10
  11 // <map>
  12
  13 // class map
  14
  15 // size_type count(const key_type& k) const;
  16 //
  17 //   The member function templates find, count, lower_bound, upper_bound, and
  18 // equal_range shall not participate in overload resolution unless the
  19 // qualified-id Compare::is_transparent is valid and denotes a type
  20
  21
  22 #include <map>
  23 #include <cassert>
  24
  25 #include "test_macros.h"
  26 #include "is_transparent.h"
  27
  28 int main(int, char**)
  29 {
  30     {
  31     typedef std::map<int, double, transparent_less_private> M;
  32
  33     TEST_IGNORE_NODISCARD M().count(C2Int{5});
  34     }
  35 }