Date: Tue, 11 Aug 2020 06:37:04 +0000
Hi all,
I recently proposed changes to the C grammar which got
voted into C2X by WG14 (N2508, also see N2496).
This allows placing of labels everywhere in a compound
statement, even before declarations and at the end
of a block, which was not possible in C so far.
Example:
{
start:
int i;
mid:
int j;
end:
}
It has been pointed out to me that while C++ allows
labels before declarations, it does not allow them
at the end of a compound statement.
I plan to propose a change to C++ to make this
possible too and I wonder if you have any comments
or suggestions related to this?
Another (old) difference between C is that in C++ you
can use declarations everywhere where statements are
allowed, which includes with iteration, control, and
jump statements.
if (1)
int i;
This does not make too much sense in the context
of C, so I do not think we will adopt this.
Best,
Martin
Received on 2020-08-11 01:40:36