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 opening /dev/null
#1
is it true that when opening /dev/null for read, write, or append, it doesn't really do any syscalls, but just changes some function reference around so it totally fakes all the dummy I/O for a performance boost?
What do you call someone who speaks three languages? Trilingual. Two languages? Bilingual. One language? American.
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#2
Could you verify that using strace (assuming Linux)?
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#3
you don't really know.
What do you call someone who speaks three languages? Trilingual. Two languages? Bilingual. One language? American.
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  open /dev/null or equivalent, portably Skaperen 1 369 Oct-24-2019, 06:47 AM
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