[Bug c++/56389] New: Return types differs in block scope function declarations and function implementation

[forever14 at bk dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56389



             Bug #: 56389

           Summary: Return types differs in block scope function

                    declarations and function implementation

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: c++

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: foreve...@bk.ru





Code:



int main()

{

   int f();

   f();

}



void f() { }



http://liveworkspace.org/code/1zsrDJ$3



>From C++ standard:



par 3.3.2/10 Function declarations at block scope and variable declarations

with the extern specifier at block scope refer to declarations that are members

of an enclosing namespace, but they do not introduce new names into that scope.



So, block scope function declaration is allowed, but why there is no diagnostic

on return types? In C such code cause error



http://liveworkspace.org/code/1zsrDJ$4