On Thu, Jun 24, 2004 at 02:11:34AM -0300, Juan Linietsky wrote: > #define undenormalise(sample) if(((*(unsigned int*)&sample)&0x7f800000)==0) > sample=0.0f > > however gcc 3.3 and 3.4 seem to produce an undesired effect > when the optimizer is turned on, rendering this macro unusable.. > this breaks freeverb and a few other stuff I have that uses it.
It violates C99's pointer aliasing rules. I've posed a C99 friendly version later in the thread. Another point of differentiation between denomal hacks is tht this one doesnt even analyse the potential denomal as a float, so you miss one denomal operation that can occur with cleaner methods. - Steve
