http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55252
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-11-10
23:20:36 UTC ---
(In reply to comment #4)
> On the other hand, this is a very contrived testcase. I
> wouldn't expect in normal code that the expansion point to be in a
> system-header and the spelling point in a non-system-header.
It's not that contrived, here's a more realistic example:
#define fixed 1
#include <iostream>
int main() { }
This gives a very unhelpful error:
t.cc:1:15: error: expected unqualified-id before numeric constant
#define fixed 1
^
t.cc:1:15: error: expected unqualified-id before numeric constant
#define fixed 1
^
t.cc:1:15: error: expected initializer before numeric constant
