Re: A BUG of 64-bit integer addition

[Jürgen Kahrs]

Steffen Schuler schrieb:

> gawk uses internally the C-type double also for integer calculation with a
> mantissa of 53 bit length.
> (AMD Athlon, Linux, gcc 4.2.3, gawk-3.1.6a)
> The result of your addition would need 54 bit.
>
> As long as gawk uses the C-type double you have to live with this error.

This is not an error, but a feature.
As far as I know, it is intentional that gawk uses 
a portable data type that produces the same result
on every machine.