llvm dev - Apr 2011 - [LLVMdev] description of llvm::cast correct?

Hi!

in the description of llvm::cast it says:

But it will correctly return NULL when the input is NULL.

And in the description of llvm::cast_or_null it says:

Functionally identical to cast, except that a null value is  accepted

This sounds to me as if both functions accept a null pointer.
What is then the difference between cast and cast_or_null?

-Jochen

On Apr 7, 2011, at 6:02 AM, Jochen Wilhelmy wrote:
> Hi!
> 
> in the description of llvm::cast it says:
> 
> But it will correctly return NULL when the input is NULL.
> 
> And in the description of llvm::cast_or_null it says:
> 
> Functionally identical to cast, except that a null value is  accepted
> 
> This sounds to me as if both functions accept a null pointer.
> What is then the difference between cast and cast_or_null?
Yep, you're right, this is a comment bug.  cast<> does not allow
nulls.  Fixed in r129186.

-Chris