On Nov 23, 2010, at 2:03 PM, John McCall wrote:
> Author: rjmccall
> Date: Tue Nov 23 16:03:51 2010
> New Revision: 120063
>
> URL: http://llvm.org/viewvc/llvm-project?rev=120063&view=rev
> Log:
> Redeclarations of using declarations are not okay in function scopes.
> Not sure what I was thinking before.
>
> Fixes PR8668.
This reverses a previous commit:
------------------------------------------------------------------------
r103210 | dgregor | 2010-05-06 16:31:27 -0700 (Thu, 06 May 2010) | 3 lines
It turns out that we should be allowing redeclarations within function
scope. Thanks to Steven Watanabe for correcting me.
PR8668 is actually invalid (not a Clang bug), because redeclarations *are* okay
within block scopes. For example, this is well-formed:
void g() {
void f(int);
void f(int);
extern int j;
extern int j;
}
Obviously,
void h() {
int k;
int k;
}
is ill-formed, but that's not because it's a redeclaration of 'k': it's because
both declarations are also definitions.
- Doug
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