I almost always check the return value of close on handles
that I have open for writing. There's usually not much you
can do to recover, but I like my programs to die screaming
instead of silently going down. Perhaps the most common
cause of a close failure is when the filesystem is full.
If that happens, I want to know it right away.
I certainly wouldn't autoclose filehandles that I have open
for writing, because I want to inspect the return value of
close. And save from writing some XS code, I don't think you
detect a close failure if your handle autocloses. Perhaps
setting $! to 0 just before leaving the scope, and inspecting $! right afterwards might work, but other variables can go out of scope, causing $! to be set.
Abigail
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