Hi, > There seems to be a separate api for checking trapping support: > ieee_support_halting, but it only checked if the exception status > flags are available, so check trapping support too by enabling > and disabling traps.
Thanks for the patch. I am worried about the unnecessary operations that we’re doing here: doesn’t glibc have a way to tell you what it supports without having to do it (twice, enabling then disabling)? Also, the glibc doc states that: "Each of the macros FE_DIVBYZERO, FE_INEXACT, FE_INVALID, FE_OVERFLOW, FE_UNDERFLOW is defined when the implementation supports handling of the corresponding exception”. It evens says: > Each constant is defined if and only if the FPU you are compiling for > supports that exception, so you can test for FPU support with ‘#ifdef’. So it seems rather clear that compile-time tests are the recommended way to go. FX
