3 ms·

errno can be set upon failure, and also the behaviour is dependant on the global floating point environment (although passing this around with you would be rath

by mhh__ 4y ago

errno can be set upon failure, and also the behaviour is dependant on the global floating point environment (although passing this around with you would be rather cumbersome)

dllthomas 4y ago
> errno can be set upon failure ... can it? I don't see it in the man page. The rest is a good point, either way, though.
- mhh__ 4y ago
  I don't know the exact wording in the standard but take a look at/around the GCC flag -fno-math-errno for example
  - dllthomas 4y ago
    Ah, checked a man page on a Mac, where it never sets errno (according to the gcc docs). It's mentioned in the man page on my linux box here.