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  1. #include <iostream>
  2. #include <regex>
  3. #include <string>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	regex r(R"(^#include\s+(\S+)(?=$|\r?\n))");
  8. 	string s("#include <stdio.h>\r\n#include <regex>");
  9. 	smatch m;
  10. 	if (regex_search(s, m, r)) {
  11. 		std::cout << m[1] << std::endl;
  12. 	}
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 15336KB
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stdin
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Standard input is empty
stdout
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<stdio.h>
https://ideone.com/MUx80I
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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