The following program:
--------------------------------
int foo(int dest)
{
int x = 0;
__label__ l1, l2, l3;
__label__ *lb[] = { &&l1, &&l2, &&l3 };
goto **lb[dest];
l1:
x += 1;
l2:
x += 1;
l3:
x += 1;
return x;
}
--------------------------------
produce an infinite loop in diagnostic when compiled with G++ 3.4.3:
label.cc:5: error: expected identifier before '*' token
label.cc:5: error: expected `,' before '*' token
label.cc:5: error: expected identifier before '*' token
label.cc:5: error: expected `,' before '*' token
label.cc:5: error: expected identifier before '*' token
label.cc:5: error: expected `,' before '*' token
label.cc:5: error: expected identifier before '*' token
label.cc:5: error: expected `,' before '*' token
label.cc:5: error: expected identifier before '*' token
label.cc:5: error: expected `,' before '*' token
label.cc:5: error: expected identifier before '*' token
label.cc:5: error: expected `,' before '*' token
label.cc:5: error: expected identifier before '*' token
[....]
--
Summary: Infinite loop in diagnostic
Product: gcc
Version: 3.4.3
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: giovannibajo at libero dot it
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20563
