On Mon, 6 Apr 2009, David Houlder wrote:
I don't think longjmp() is async signal safe.
You need to specify environment we are talking about. IEEE Std 1003.1
declare:
----------------
As it bypasses the usual function call and return mechanisms, longjmp()
shall execute correctly in contexts of interrupts, signals, and any of
their associated functions.
...
----------------
This is extension against ISO C which lack such declaration. It mean the
ISO C longjmp may or may not work here.
So POSIX longjmp is signal safe, ISO C longjmp is not safe unless a
specific implementation declare similar extension against ISO C.
Dan
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