This C program is compiled with no warning or error by mainline.
enum E { A };
void foo(unsigned int);
void (*pfn)(enum E) = foo;
My reading of ISO C says that these function pointers are not compatible types.
I think the compiler should report something like
warning: initialization from incompatible pointer type
--
Summary: C frontend permits setting a function pointer to a
function with different parameter type
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: accepts-invalid
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ian at airs dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40325
