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  1. 	#include <iostream>
  2. 	#include <sstream>
  3. 	#include <string>
  4. 	using namespace std;
  5.  
  6. 	int main() {
  7.  
  8. 		istringstream iss("2.832 1.3067 nana1.678 xxx.05 meh.ugh");
  9. 		double num = 0;
  10. 		while(iss >> num || !iss.eof()) {
  11. 			if(iss.fail()) {
  12. 				iss.clear();
  13. 				while(iss) {
  14. 					char dummy = iss.peek();
  15. 					if(std::isdigit(dummy) || dummy == '.') {
  16. 						// Stop consuming invalid double characters
  17. 						break;
  18. 					}
  19. 					else {
  20. 					    iss >> dummy; // Consume invalid double characters
  21. 					}
  22. 				}
  23. 				continue;
  24. 			}
  25. 			cout << num << endl;
  26. 		}
  27. 		return 0;
  28. 	}
Success #stdin #stdout 0s 3476KB
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stdin
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Standard input is empty
stdout
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2.832
1.3067
1.678
0.05
https://ideone.com/bueZmu
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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