On Thursday, November 24, 2016 at 12:06:43 AM UTC+8, Jan Mercl wrote:
>
> On Wed, Nov 23, 2016 at 4:55 PM T L <tapi...@gmail.com <javascript:>>
> wrote:
>
> > But we can't take addresses of formally declared functions and function
> literals.
>
> Yes, so if you cannot have the function pointer (like in func foo() {}; fp
> := foo) then there is nothing to compare so I don't understand what's the
> connection to comparing of function pointers.
>
We cannot tabke addresses of constants too, but we can compare constants.
>
> > We can only take addresses of function variables.
>
> Addresses of function variables can be compared freely without any
> limitation. Note: There's a distinction between the value of a function
> variable (that's the function pointer) and the address of the variable,
> that's not the function address and so it can be compared normally. To be
> explicit. Address of a function variable is a pointer to a pointer. Maybe
> that's making this thread confusing.
>
>
> --
>
> -j
>
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