Re: [avr-libc-dev] pow(x,y) broken for x<0

[Joerg Wunsch]

As Edwin Olson wrote:

> I believe the implementation of pow is inconsistent with the
> standard POSIX definition. The one provided by avr libc assumes x>0
> so that it can approximate x^y with exp( log(x) * y).

> The POSIX definition allows x<0, provided that y is integral valued.

Sigh, yet another FPlib bug. :-(

While we aren't aiming for Posix compliance, of course, they only took
the C standard on that, and *that* we do want to be compatible with.

Please fill out a bug report at

https://savannah.nongnu.org/bugs/?group=avr-libc

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)