Always... except when you're actually writing floating point operations. If I'm implementing `sqrt`, I'd better make sure the result is exactly the expected one. Epsilon is 0 in all my unit tests. ;)
This is true! As an implementor of floating point operations, you want to be exactly correct for all values (glares at Intel :P ) However, as a consumer of said floating point operations, I'm still gonna treat everything as Sneaky And Not To Be Trusted. :P Especially in C++ where this attribute is largely supplied by the compiler being /r/iamverysmart about this sort of thing.
taneq|8 months ago