libcxx/test/std/re/re.results/re.results.const/default.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 // <regex>
  10
  11 // class match_results<BidirectionalIterator, Allocator>
  12
  13 // match_results(const Allocator& a = Allocator());
  14
  15 #include <regex>
  16 #include <cassert>
  17 #include "test_macros.h"
  18
  19 template <class CharT>
  20 void
  21 test()
  22 {
  23     std::match_results<const CharT*> m;
  24     assert(m.size() == 0);
  25     assert(!m.ready());
  26     assert(m.get_allocator() == std::allocator<std::sub_match<const CharT*> >());
  27 }
  28
  29 int main(int, char**)
  30 {
  31     test<char>();
  32     test<wchar_t>();
  33
  34   return 0;
  35 }