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  1. #include <iostream>
  2. #include <string>
  3. #include <regex>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9. 	string str = "Just a string :)";
  10.  
  11. 	string res = regex_replace(str, regex("^\\W*(\\w+).*$"), "$1");
  12. 	cout << res << endl;
  13.  
  14. 	return 0;
  15. }
Success #stdin #stdout 0s 16168KB
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Just
https://ideone.com/RESgso
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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