Differential D57391 Diff 184496 test/std/re/re.alg/re.alg.match/exponential.pass.cpp

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test/std/re/re.alg/re.alg.match/exponential.pass.cpp

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	// match_results<BidirectionalIterator, Allocator>& m,			// match_results<BidirectionalIterator, Allocator>& m,
	// const basic_regex<charT, traits>& e,			// const basic_regex<charT, traits>& e,
	// regex_constants::match_flag_type flags = regex_constants::match_default);			// regex_constants::match_flag_type flags = regex_constants::match_default);

	// Throw exception after spent too many cycles with respect to the length of the input string.			// Throw exception after spent too many cycles with respect to the length of the input string.

	#include <regex>			#include <regex>
	#include <cassert>			#include <cassert>
				#include "test_macros.h"

	int main() {			int main() {
	for (std::regex_constants::syntax_option_type op :			for (std::regex_constants::syntax_option_type op :
	{std::regex::ECMAScript, std::regex::extended, std::regex::egrep,			{std::regex::ECMAScript, std::regex::extended, std::regex::egrep,
	std::regex::awk}) {			std::regex::awk}) {
	try {			try {
	std::regex_match(			bool b = std::regex_match(
	"aaaaaaaaaaaaaaaaaaaa",			"aaaaaaaaaaaaaaaaaaaa",
	std::regex(			std::regex(
	"a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?aaaaaaaaaaaaaaaaaaaa",			"a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?aaaaaaaaaaaaaaaaaaaa",
	op));			op));
	assert(false);			LIBCPP_ASSERT(false);
				assert(b);
	} catch (const std::regex_error &e) {			} catch (const std::regex_error &e) {
	assert(e.code() == std::regex_constants::error_complexity);			assert(e.code() == std::regex_constants::error_complexity);
	}			}
	}			}
	std::string s(100000, 'a');			std::string s(100000, 'a');
	for (std::regex_constants::syntax_option_type op :			for (std::regex_constants::syntax_option_type op :
	{std::regex::ECMAScript, std::regex::extended, std::regex::egrep,			{std::regex::ECMAScript, std::regex::extended, std::regex::egrep,
	std::regex::awk}) {			std::regex::awk}) {
	assert(std::regex_match(s, std::regex("a*", op)));			assert(std::regex_match(s, std::regex("a*", op)));
	}			}
	return 0;			return 0;
	}			}