Re: errno bug?

[Thomas Maeder]

"E. Robert Tisdale" <E.Robert.Tisdale@jpl.nasa.gov> writes:

> The problem is that /usr/include/bits/errno.h declares:
>
> extern int *__errno_location (void) __THROW __attribute__ ((__const__));
>
> but defines the C preprocessor macro:
>
> #   define errno (*__errno_location ())
>
>
> The declaration and the macro definition are inconsistent.

I don't see it.

__errno_location() evaluates to an int *, so (*__errno_location ())
evaluates to an lvalue of type int. Makes sense to me.

Is there a problem with the "__THROW __attribute__ ((__const__));" part
(which I don't understand)?