libcxx/test/std/re/re.regex/re.regex.construct/ptr_size.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, size_t len);
  14
  15 #include <regex>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 template <class CharT>
  21 void
  22 test(const CharT* p, std::size_t len, unsigned mc)
  23 {
  24     std::basic_regex<CharT> r(p, len);
  25     assert(r.flags() == std::regex_constants::ECMAScript);
  26     assert(r.mark_count() == mc);
  27 }
  28
  29 int main(int, char**)
  30 {
  31     test("\\(a\\)", 5, 0);
  32     test("\\(a[bc]\\)", 9, 0);
  33     test("\\(a\\([bc]\\)\\)", 13, 0);
  34     test("(a([bc]))", 9, 2);
  35
  36     test("(\0)(b)(c)(d)", 12, 4);
  37     test("(\0)(b)(c)(d)", 9, 3);
  38     test("(\0)(b)(c)(d)", 3, 1);
  39     test("(\0)(b)(c)(d)", 0, 0);
  40
  41   return 0;
  42 }