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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main(int argc, char** argv)
  6. {
  7. 	printf("using printf\n");
  8. 	printf("% .5e\n", M_PI);
  9. 	printf("% .5e\n", -M_PI);
  10. 	printf("decimal point columns line up\n");
  11.  
  12. 	cout.precision(5);
  13. 	cout << "using streams" << endl;
  14. 	cout << scientific << M_PI << endl;
  15. 	cout << scientific << -M_PI << endl;
  16. 	cout << "decimal point columns do not line up" << endl;
  17. 	return 0;
  18. }
Success #stdin #stdout 0.02s 2724KB
comments (?)
stdin 
Standard input is empty
stdout 
using printf
 3.14159e+00
-3.14159e+00
decimal point columns line up
using streams
3.14159e+00
-3.14159e+00
decimal point columns do not line up
https://ideone.com/o6ps6
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
secret

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