On 2015-08-22, Alan McKinnon <[email protected]> wrote: [regarding floating point comparison.]
> A good way to demonstrate just how problematic floats can be is to point > out that floats are banned in the linux kernel for exactly this reason. > Integers only. Really? The reason that I was given when I wanted to use FP in a kernel module is that handing context switching for FP hardware is much simpler/faster if you assume no FP operations in the kernel. Nobody ever mentioned the comparison "problem" or other typical FP computation stumbles -- the decision was supposedly based on the complications of handing FP hardware context switches. -- Grant
