xref: /llvm-project/libcxx/test/std/re/re.regex/re.regex.construct/bad_repeat.pass.cpp (revision 8c61114c53dcd6139a4a750925b91ed9bcf4178c)
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 
error_badrepeat_thrown(const char * pat)21 static bool error_badrepeat_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_badrepeat);
28     }
29     return result;
30 }
31 
main(int,char **)32 int main(int, char**)
33 {
34     assert(error_badrepeat_thrown("?a"));
35     assert(error_badrepeat_thrown("*a"));
36     assert(error_badrepeat_thrown("+a"));
37     assert(error_badrepeat_thrown("{a"));
38 
39     assert(error_badrepeat_thrown("?(a+)"));
40     assert(error_badrepeat_thrown("*(a+)"));
41     assert(error_badrepeat_thrown("+(a+)"));
42     assert(error_badrepeat_thrown("{(a+)"));
43 
44   return 0;
45 }
46