Limiting Decimal Places

[rar]

What is the syntax to limit a decimal to 2 decimal places?

Meaning if I'm reading output using "%d" or "%f" how do I modify it to limit to 2 decimal places?

[bbi5291]

rar @ Mon Sep 28, 2009 8:32 pm wrote:

What is the syntax to limit a decimal to 2 decimal places?

Meaning if I'm reading output using "%d" or "%f" how do I modify it to limit to 2 decimal places?

You don't read output, you write it.
%d is for integers, so I don't know what you mean by 2 decimal places.
You would use the format specifier %.2f to print a double to two decimal places.

[DemonWasp]

You'd be surprised how much you can learn by typing "wiki printf" into your browser.

[saltpro15]

printf:

c++:

double n = 3.141592; printf ("%.4f", n); //output to 3 decimals

cout:

c++:

double n = 3.141592; cout.setf(ios_based::fixed); cout.precision(4); cout << n << endl;

[rar]

bbi5291 @ Mon Sep 28, 2009 8:46 pm wrote:

rar @ Mon Sep 28, 2009 8:32 pm wrote:

What is the syntax to limit a decimal to 2 decimal places?

Meaning if I'm reading output using "%d" or "%f" how do I modify it to limit to 2 decimal places?

You don't read output, you write it.
%d is for integers, so I don't know what you mean by 2 decimal places.
You would use the format specifier %.2f to print a double to two decimal places.

Thanks for commenting on the obvious technical errors in my post.

Also, thanks for your help!

[bbi5291]

Quote:

Thanks for commenting on the obvious technical errors in my post.

Is that sarcastic?

[Kharybdis]

Probably..

[rar]

bbi5291 @ Tue Sep 29, 2009 2:57 pm wrote:

Quote:

Thanks for commenting on the obvious technical errors in my post.

Is that sarcastic?

A bit of sarcasm, yes, but only because you were quite right and I looked like an idiot.