[Help-gsl] compiler fast math options

[Nathan Moore]

I'm working on a project which will use GSL integration routines and 
random number generators.  In the interest of code execution speed, I'm 
wondering if GSL is picky about the standard Math library.  
Specifically, I've read in the past that if you're not concerned about 
(1) the inclusion of extra precision or (2) you code doesn't rely on an 
error flag when it encounters something like sqrt(-3.25) then there' is 
no real risk in enabling the "fast-math" option in the compiler.

Does this sort of logic (with appropriate error checking) hold true 
when interacting with GSL?

Nathan Moore, Minneapolis