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  1. #include <iostream>
  2. #include <regex>
  3. using namespace std;
  4.  
  5. int main() {
  6.     std::string l_strHexValue = "#FF0000";
  7.     std::regex pattern("#([0-9a-fA-F]{6})\\b");
  8.     std::smatch match;
  9.     if (std::regex_match(l_strHexValue, match, pattern))
  10.     {
  11. 		int r, g, b;
  12. 		sscanf(match.str(1).c_str(), "%2x%2x%2x", &r, &g, &b);
  13.         std::cout << "R: " << r << ", G: " << g << ", B: " << b << "\n";
  14.     }
  15.  
  16.     return 0;
  17. }
Success #stdin #stdout 0.01s 5460KB
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stdin
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Standard input is empty
stdout
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R: 255, G: 0, B: 0
https://ideone.com/CAFc1l
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
secret

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