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  1. #include <iomanip>
  2. #include <iostream>
  3. #include <sstream>
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8. 	double number = 312324654832.313;
  9.  
  10. 	ostringstream streamnumber;													
  11.     streamnumber << scientific << showpos << setw(14) << setprecision(7) << number;
  12.     string fltstring = streamnumber.str();
  13.     cout << fltstring << endl;
  14.  
  15. 	char buffer[20];
  16. 	sprintf(buffer, "%+14.7e", number);
  17. 	puts(buffer);
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0s 4556KB
comments (?)
stdin
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Standard input is empty
stdout
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+3.1232465e+11
+3.1232465e+11
https://ideone.com/xkCWgY
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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