6d2a66b10d
This patch fixes [[ https://cplusplus.github.io/LWG/issue2584 | 2584 ]]. Now the following works: const std::regex r1("\\z"); assert(std::regex_match("z", r1)); Differential Revision: https://reviews.llvm.org/D66610
46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: no-exceptions
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// <regex>
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// template <class charT, class traits = regex_traits<charT>> class basic_regex;
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// template <class ST, class SA>
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// basic_regex(const basic_string<charT, ST, SA>& s);
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#include <regex>
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#include <cassert>
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#include "test_macros.h"
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static bool error_escape_thrown(const char *pat)
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{
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bool result = false;
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try {
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std::regex re(pat);
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} catch (const std::regex_error &ex) {
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result = (ex.code() == std::regex_constants::error_escape);
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}
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return result;
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}
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int main(int, char**)
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{
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assert(error_escape_thrown("[\\a]"));
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assert(error_escape_thrown("\\"));
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assert(error_escape_thrown("[\\e]"));
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assert(error_escape_thrown("[\\c:]"));
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assert(!error_escape_thrown("[\\cA]"));
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assert(!error_escape_thrown("\\cA"));
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return 0;
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}
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