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  1. #include <iomanip>
  2. #include <iostream>
  3. #include <sstream>
  4.  
  5. int main() {
  6. 	double pi = 3.1415;
  7. 	int prec = 3;
  8.  
  9. 	std::stringstream ss;
  10.  
  11. 	ss << std::setprecision(prec) << pi;
  12.  
  13. 	std::string s = ss.str();
  14. 	std::cout << s;
  15.  
  16. 	return 0;
  17. }
Success #stdin #stdout 0s 3428KB
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Standard input is empty
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3.14
https://ideone.com/WZ64sW
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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