Typo in <sys/select.h>?

Lavrentiev, Anton (NIH/NLM/NCBI) [C] lavr@ncbi.nlm.nih.gov
Tue Jul 5 15:11:35 GMT 2022

> I'm no expert, but it seems the FD_SETSIZE should have been 128.
> Long is 8 bytes, 64 bits. One bit if one open file, 64 * 64 = 4096.

FD_SETSIZE is the file descriptor bitset capacity in _BITS_.

64 (as currently in there) means 1 int (on 64 bit platforms, or 2 ints on 32 bit
platforms, respectively), and is capable of representing 64 file descriptors by

Anton Lavrentiev
Contractor NIH/NLM/NCBI

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