[Bug c/23144] New: [4.0/4.1 Regression] invalid parameter forward declarations not diagnosed

[jsm28 at gcc dot gnu dot org]

GCC 4.0 fails to diagnose cases of parameter forward declarations followed by no
normal parameter declarations, such as

int g1(int a;);
int g2(int a; __attribute__((unused)));
int g3(int;);
int g4(int, long;);

The same applies to 4.1 once I've fixed bug 23143.  3.4 diagnoses these cases.

-- 
           Summary: [4.0/4.1 Regression] invalid parameter forward
                    declarations not diagnosed
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jsm28 at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23144