libcxx/test/std/re/re.results/re.results.const/copy_assign.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& operator=(const match_results& m);
  14
  15 #include <regex>
  16 #include <cassert>
  17 #include "test_macros.h"
  18 #include "test_allocator.h"
  19
  20 template <class CharT, class Allocator>
  21 void
  22 test(const Allocator& a)
  23 {
  24     typedef std::match_results<const CharT*, Allocator> SM;
  25     SM m0(a);
  26     SM m1;
  27
  28     m1 = m0;
  29     assert(m1.size()          == m0.size());
  30     assert(m1.ready()         == m0.ready());
  31     if (std::allocator_traits<Allocator>::propagate_on_container_copy_assignment::value)
  32         assert(m1.get_allocator() == m0.get_allocator());
  33     else
  34         assert(m1.get_allocator() == Allocator());
  35 }
  36
  37 int main(int, char**)
  38 {
  39     test<char>   (std::allocator<std::sub_match<const char *> >());
  40 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  41     test<wchar_t>(std::allocator<std::sub_match<const wchar_t *> >());
  42 #endif
  43
  44     // test_allocator has POCCA -> false
  45     test<char>   (test_allocator<std::sub_match<const char*> >(3));
  46 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  47     test<wchar_t>(test_allocator<std::sub_match<const wchar_t*> >(3));
  48 #endif
  49
  50     // other_allocator has POCCA -> true
  51     test<char>   (other_allocator<std::sub_match<const char*> >(3));
  52 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  53     test<wchar_t>(other_allocator<std::sub_match<const wchar_t*> >(3));
  54 #endif
  55
  56   return 0;
  57 }