[cfe-commits] r66301 - in /cfe/trunk: include/clang/Basic/DiagnosticSemaKinds.def lib/Sema/SemaDecl.cpp test/Sema/function-redecl.c test/Sema/knr-def-call.c

[Neil Booth]

Neil Booth wrote:-

> Douglas Gregor wrote:-
> 
> > Author: dgregor
> > Date: Fri Mar  6 16:43:54 2009
> > New Revision: 66301
> > 
> > URL: http://llvm.org/viewvc/llvm-project?rev=66301&view=rev
> > Log:
> > Implement GNU C semantics for K&R function definitions that follow a
> > prototype of the same function, where the promoted parameter types in
> > the K&R definition are not compatible with the types in the
> > prototype. Fixes PR2821.
> 
> You seem to imply this is something that GCC is doing itself; I
> don't believe that's true.  The only thing I recall being undesirable
> about GCC's handling of K&R prototypes was that it didn't diagnose
> *enough* undefined behaviour that was easily diagnosable.  I think
> EDG diagnosed those extra cases.

Apologies for the misunderstanding, it seems you were downgrading an
error rather than upgrading a missed diagnostic.

Neil.