search for: fpieee754

...in R to distinguish these. There are occasions where it is useful to be able to detect things like this (and NaN and Inf and -Inf etc.). They are usually not of interest to users, but sometimes are needed for developers to check edge effects. For those cases it may be time to consider a package FPIEEE754 or some similar name to allow testing and possibly setting of flags for some of the fancier features. Likely used by just a few of us in extreme situations. Unfortunately, some of the nice exception handling that was suggested in the standard is apparently rarely implemented in compilers. For...