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  1. #include <regex>
  2. #include <string>
  3. #include <iostream>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	std::regex expression(R"(am\s+(\d+))");
  8. 	std::smatch match;
  9. 	std::string what("I am years old.");
  10. 	if (regex_search(what, match, expression))
  11. 	{
  12. 	     cout << match.str(1) << endl;
  13. 	}
  14.     return 0;
  15. }
Success #stdin #stdout 0s 16160KB
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https://ideone.com/YEgrpJ
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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