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xen-devel
Re: [Xen-devel] Casting 64-bit pointers to integers
Samuel Thibault wrote:
intptr_t/uintptr_t is there for this.
In tools/xenpmd/acpi-events.c, which is in the git sources but doesn't
seem to be in the 3.4 sources, there are two returns from
acpi_events_thread which cast ints to void*'s. These break the compile
on 64-bit.
One of the ints is a socket_fd, the other is the result from a connect
system call.
I got it to compile at first by doing something like this:
return (void*)(unsigned long long)socket_fd
But what would be better is
return (void*)(uintptr_t)socket_fd
If you were to just make socket_fd a uintptr_t, it would lose precision
when you passed it to connect. You could explicitly cast it to an int
there, I suppose.
Mike
--
Michael David Crawford
mdc@xxxxxxxxx
prgmr.com - We Don't Assume You Are Stupid.
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