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  1. #include <iostream>
  2. #include <regex>
  3. using namespace std;
  4.  
  5. int main() {
  6.  
  7. 	string s = "He";
  8. 	if (regex_match(s, regex("[A-Za-z_][A-Za-z0-9_]*", regex_constants::basic))) {
  9. 		cout << "Match" << endl;
  10. 	}
  11.  
  12. 	return 0;
  13. }
Success #stdin #stdout 0s 3460KB
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stdin
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Hello this is a test
stdout
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Standard output is empty
https://ideone.com/xuY2nD
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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