add NFDBITS in sys/select.h with appropriate feature tests

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the main use for this macro seems to be knowing the correct allocation
granularity for dynamic-sized fd_set objects. such usage is
non-conforming and results in undefined behavior, but it is widespread
in applications.

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Rich Felker 2013-07-06 01:12:28 -04:00

parent 6d861ac874

commit ca9aff6a16

1 changed files with 3 additions and 0 deletions

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