fork download
copy 
  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.05xyz");
  9. 		double num = 0;
  10. 		while(iss >> num || !iss.eof()) {
  11. 			if(iss.fail()) {
  12. 				iss.clear();
  13. 				int loopcount = 0;
  14. 				while(iss) {
  15. 					char dummy = iss.peek();
  16. 					if(std::isdigit(dummy) || dummy == '.') {
  17. 						// Stop consuming invalid double characters
  18. 						break;
  19. 					}
  20. 					else {
  21. 					    iss >> dummy; // Consume invalid double characters
  22. 					}
  23. 					std::cout << "loop " << loopcount++ << std::endl;
  24. 				}
  25. 				continue;
  26. 			}
  27. 			cout << num << endl;
  28. 		}
  29. 		return 0;
  30. 	}
Success #stdin #stdout 0s 3428KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
2.832
1.3067
loop 0
loop 1
loop 2
loop 3
1.678
loop 0
loop 1
loop 2
0.05
loop 0
loop 1
loop 2
loop 3
https://ideone.com/3HSyxH
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!