'malloc' attribute?

[Chris Lattner]

> Apparently C99 doesn't allow declaring a function to return a 'restrict'
> pointer (GCC rejects it at least), but GCC does allow you to attach the
> malloc attribute to a function.  It seems to me that this is the exact
> same information, ie, the following two function prototypes should be
> equivalent:
>
> restrict int* foo();            // Currently rejected with -std=c99
> int *foo() __attribute__((malloc));

Err... sorry to respond to myself, but I see the error of my ways:

int * restrict foo();
int *foo2() __attribute__((malloc));

... is the test I intended, and is, in fact, accepted by gcc.  So, is
there any difference between these two declarations?

-Chris

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