[glean-dev] catching FP exceptions in C++

[Brian P. <bri...@tu...>]

I'm going to be writing a new glean test to see how OpenGL handles 
infinite/nan/denorm/etc floating point values.

At the extreme, the test will pass if you don't crash. :)  It would be 
nicer to catch any floating point exceptions and try to recover.

My experience with exception handling in C++ is pretty slim and I'm 
not even sure if there's a standard way to handle them.

I could add twiddle with the x86 floating point control register to 
generate the exceptions and install a unix-style exception handler, 
but that'll tie it to x86/Unix.

Any ideas?

-Brian