I have a situation where some floating point operations are generating underflows resulting in floating point assist traps. I can easily turn on the the signals with feenableexcept(FE_ALL_EXCEPT) or one of the related functions. I did notice that Steven Hatton discussed this about 2 years ago on another list, but I did not see a Linux resolution. Specifically, what I want to do is: double d = <init value>; try { a /= 2; // divide by 2 to cause an underflow } catch(some exception) { // handle exception }

One solution here is to set up a signal handler that throws an exception. That is messy, but it will do the job.