Subj : Re: Homemade float adder?
To   : comp.programming
From : mensanator@aol.com
Date : Tue Sep 13 2005 07:28 pm


Ben Pfaff wrote:
> "dave" <nospam@nospam.net> writes:
>
> > This is my problem, I have 2 strings that represent floats.
> > I want to add them together.
> > Should I look at using Cint to convert each character in the string and add?
> > Or is there I better way?
> > I can't convert them to floats because the precision must be kept to 300
> > digits after the decimal.
> > Any clues would be most helpful?
>
> I would use an arbitrary-precision math library, such as GNU gmp.
> There is little or no benefit to writing your own routines,
> except for educational purposes.

I agree. I actually did what you propose only I used strings to
represent arbitrary precision binary numbers. I needed the every
bit of a 250,000 bit number. It worked fine but was s...l...o...w.

I dropped it like a live grenade once I got my hands on GMP.

> -- 
> Aim to please, shoot to kill.

.