[Llvm-bgq-discuss] Does anyone use math-function errno?

[Michael Schlottke]

> But, in my experience, I've not seen a science code that actually checked errno after calling a libm math function. 

I think this is the crucial sentence here… I cannot think of a reason why one would want to check the error number in a performance-critical section for something as basic as a math function. And as Erik's already said, I haven't seen any examples of the error number in use either.

Michael