libcxx/test/std/re/re.regex/re.regex.construct/ptr.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 // template <class charT, class traits = regex_traits<charT>> class basic_regex;
  12
  13 // basic_regex(const charT* p);
  14
  15 #include <regex>
  16 #include <cassert>
  17 #include "test_macros.h"
  18
  19 template <class CharT>
  20 void
  21 test(const CharT* p, unsigned mc)
  22 {
  23     std::basic_regex<CharT> r(p);
  24     assert(r.flags() == std::regex_constants::ECMAScript);
  25     assert(r.mark_count() == mc);
  26 }
  27
  28 int main(int, char**)
  29 {
  30     test("\\(a\\)", 0);
  31     test("\\(a[bc]\\)", 0);
  32     test("\\(a\\([bc]\\)\\)", 0);
  33     test("(a([bc]))", 2);
  34
  35   return 0;
  36 }