On Wed, Sep 20, 2017 at 5:52 PM, Marc Espie <es...@nerim.net> wrote: > On Wed, Sep 20, 2017 at 09:21:53PM +0200, Ingo Schwarze wrote: >> So, apart from being safer for weird devices on weird implementations, >> POSIX clearly recommends the idiom for symmetry with read(2) and >> for compatibility with some historic implementations - even though >> the importance of these reasons is likely to further decline, there >> are so many different reasons that retaining the idiom seems the >> safest bet. > > Symetry with read(2) is bull. > > write(2) is never used similarly to read(2). Either it's useful and correct > or it's not.
What are the correct cases where write(2) writes 0 bytes and that is considered success (as opposed to being one of the documented error cases)? Thanks, -- Raul
