https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83601
Dominik Haumann <dhaumann at kde dot org> changed:
What |Removed |Added
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CC| |dhaumann at kde dot org
--- Comment #4 from Dominik Haumann <dhaumann at kde dot org> ---
If there is interest, another (smaller) test case would be:
const std::string input = R"((.))";
const std::string expected = R"(\(\.\))";
const std::string obtained_std = std::regex_replace(input,
std::regex(R"([.^$|()\[\]{}*+?\\])"), R"(\\&)",
std::regex_constants::match_default |
std::regex_constants::format_sed);
const std::string obtained_boost = boost::regex_replace(input,
boost::regex(R"([.^$|()\[\]{}*+?\\])"), R"(\\&)",
boost::regex_constants::match_default |
boost::regex_constants::format_sed);
std::cout << "expected.......='" << expected << "'" << std::endl;
std::cout << "obtained(std)..='" << obtained_std << "'" << std::endl;
std::cout << "obtained(boost)='" << obtained_boost << "'" << std::endl;
Output with GCC < 8:
expected.......='\(\.\)'
obtained(std)..='\\(\\(\\.\\)\\)'
obtained(boost)='\(\(\.\)\)'
With GCC >= 8, it works and it's the same as with boost.
