| 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: no-exceptions |
| 10 | // <regex> |
| 11 | |
| 12 | // template <class charT, class traits = regex_traits<charT>> class basic_regex; |
| 13 | |
| 14 | // template <class ST, class SA> |
| 15 | // basic_regex(const basic_string<charT, ST, SA>& s); |
| 16 | |
| 17 | #include <regex> |
| 18 | #include <cassert> |
| 19 | #include "test_macros.h" |
| 20 | |
| 21 | static bool error_escape_thrown(const char *pat) |
| 22 | { |
| 23 | bool result = false; |
| 24 | try { |
| 25 | std::regex re(pat); |
| 26 | } catch (const std::regex_error &ex) { |
| 27 | result = (ex.code() == std::regex_constants::error_escape); |
| 28 | } |
| 29 | return result; |
| 30 | } |
| 31 | |
| 32 | int main(int, char**) |
| 33 | { |
| 34 | assert(error_escape_thrown("[\\a]")); |
| 35 | assert(error_escape_thrown("\\a")); |
| 36 | assert(error_escape_thrown("\\")); |
| 37 | |
| 38 | assert(error_escape_thrown("[\\e]")); |
| 39 | assert(error_escape_thrown("\\e")); |
| 40 | |
| 41 | assert(error_escape_thrown("[\\c:]")); |
| 42 | assert(error_escape_thrown("\\c:")); |
| 43 | assert(error_escape_thrown("\\c")); |
| 44 | assert(!error_escape_thrown("[\\cA]")); |
| 45 | assert(!error_escape_thrown("\\cA")); |
| 46 | |
| 47 | |
| 48 | return 0; |
| 49 | } |
| 50 |