John Marino <dr...@marino.st> writes:
> Are you 100% sure that offsetof is evaluated at compile time? Is this
> not part of section 6.6 that I quoted earlier?
My copy of C99 sayeth (in section 7.17)
offsetof(type, member-designator)
which expands to an integer constant expression that has
type size_t, the value of which is the offset in bytes, to
the structure member (designated by member-designator), from
the beginning of its structure (designated by type).
If your version of gcc isn't treating it as an integer constant
expression, you either have a bug in the compiler or a bug in your
version of <stddef.h>. And I will say once more that we have not
encountered any other report of gcc having a problem with this code.
regards, tom lane
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