🚀 go-pugleaf

In article <Dominique.Marcadet-1212951916480001@marcadet.supelec.fr>
           Dominique.Marcadet@supelec.fr "Dominique Marcadet" writes:

>Here is another question on Standard C (sorry, I don't have the standard).
>
>I think I have read in a previous thread that void * was not compatible
>with pointer to function. Then, is there any way to have a generic pointer
>to function, so that I may write in a standard way :

Not in the sense that conversions to and from the type can happen implicitly
(i.e. without a cast).

...

>If not, are all pointers to functions compatible one with another ? that
>is, does this code is valid :
>
>typedef void (*generic_pointer_to_function)(void);
>
>is_null_function ((generic_pointer_to_function) &printf);
>is_null_function ((generic_pointer_to_function) &scanf);

Yes, this is valid. As always you have to cast the function pointer back
to the correct type before you dereference it (i.e. call the function).

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Lawrence Kirby | fred@genesis.demon.co.uk
Wilts, England | 70734.126@compuserve.com
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