[LLVMdev] description of llvm::cast correct?

[Jochen Wilhelmy]

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