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  1. #include <string>
  2. #include <iostream>
  3.  
  4. std::string cutAtNComma(const std::string &s, int n) {
  5. 	std::string::size_type idx = 0;
  6. 	while (n-- > 0) {
  7. 		idx = s.find(',', idx);
  8. 		if (idx == std::string::npos) break;
  9. 		if (n == 0) return s.substr(0, idx);
  10. 		++idx;
  11. 	}
  12. 	return s;
  13. }
  14.  
  15. int main() {
  16. 	std::string s1 = "item1, item2, item3, item4, item5";
  17. 	std::string sub = cutAtNComma(s1, 4);
  18. 	std::cout << "String is: " << sub;
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 4400KB
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stdin
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Standard input is empty
stdout
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String is: item1, item2, item3, item4
https://ideone.com/OuaGG6
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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