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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <regex>
     11 // UNSUPPORTED: libcpp-no-exceptions
     12 // UNSUPPORTED: c++98, c++03
     13 
     14 // the "n" in `a{n}` should be within the numeric limits.
     15 
     16 #include <regex>
     17 #include <cassert>
     18 #include "test_macros.h"
     19 
     20 int main() {
     21   for (std::regex_constants::syntax_option_type op :
     22        {std::regex::basic, std::regex::grep}) {
     23     try {
     24       TEST_IGNORE_NODISCARD std::regex("a\\{100000000000000000\\}", op);
     25       assert(false);
     26     } catch (const std::regex_error &e) {
     27       assert(e.code() == std::regex_constants::error_badbrace);
     28     }
     29   }
     30   for (std::regex_constants::syntax_option_type op :
     31        {std::regex::ECMAScript, std::regex::extended, std::regex::egrep,
     32         std::regex::awk}) {
     33     try {
     34       TEST_IGNORE_NODISCARD std::regex("a{100000000000000000}", op);
     35       assert(false);
     36     } catch (const std::regex_error &e) {
     37       assert(e.code() == std::regex_constants::error_badbrace);
     38     }
     39   }
     40   return 0;
     41 }
     42