How can I set the number of decimal places when writing to an ofstream? I want to always write 2 decimal places, even if they are both zero.
Thanks
How can I set the number of decimal places when writing to an ofstream? I want to always write 2 decimal places, even if they are both zero.
Thanks
In C I have done something like the following:
This will print out weight with 2 decimal places, even if they are both zero. Is there a way to do this in C++?Code:fprintf(parout, "-weight=%2.f", weight);
Thanks
use setprecision(2) with cout and include <iomanip>
eg
int x = 2.143234234;
cout << setprecision(2) << x << endl;
The setprecision function only seems to work if the positions are non zero. Is there some other way? Say I have weight = 10, and I want it to be printed as 10.00. Is there a way to do this?
Thanks
The set precision function takes a value n, and this is the maximum number of decimal places, but it doesnt necessarily use them all.
Last edited by markucd; 01-23-2006 at 05:17 AM.
KurtCode:double x = 2.143234234; cout << fixed << setprecision(2) << x << endl;
That works
