Floating Point Rounding Routine

[diegonet]

Hi to everybody!
I'm looking for a routine to rounding to x number of decimal digits a floating point number.
In several C languaje implementations there's at least one form of implementation (e.g. round (var, x)).

The thing that I need to do is like this:

4.146898 after rounding to 2 decimal digits => 4.15

Somebody could help me?
Best Regards and thank's

[Ttelmah]

#define round(x,n) (floor(x*(10.0^n)+0.49)/(10.0^n)))

Best Wishes

[Bart]

[Ttelmah]

Floor is a standard library function (as is ceil), included in the compiler. You need to include 'math.h' to use it.

Best Wishes