C Compiler issue

I’ve got this line of code:

    printf ("Boss action: %u,%u%s %u %p %u\n",
        bd_ptr -> episode,
        bd_ptr -> map,
        monsters,
        bd_ptr -> tag,
        bd_ptr -> func,
        bd_ptr -> action);

The compiler throws a warning:

cc -Wp -JC: -DPADDED_STRUCTS -DMORELIGHTLEVELS -c -o o.dh_stuff dh_stuff.c
Norcroft RISC OS ARM C vsn 5.76 [19 Mar 2018]
"c.dh_stuff", line 4202: Warning: actual type <pointer> mismatches format '%p'
c.dh_stuff: 1 warning, 0 errors, 0 serious errors

I’m at a loss.

%p expects a void* and presumably bd_ptr->func is a function and you can’t cast a function without a warning. %p also gives a warning for other pointer types if you don’t cast them to a void*.

Thanks Colin, you’re correct.

Attempt 2

    printf ("Boss action: %u,%u%s %u %p %u\n",
        bd_ptr -> episode,
        bd_ptr -> map,
        monsters,
        bd_ptr -> tag,
        (void*) (bd_ptr -> func),
        bd_ptr -> action);

cc -Wp -JC: -DPADDED_STRUCTS -DMORELIGHTLEVELS -c -o o.dh_stuff dh_stuff.c
Norcroft RISC OS ARM C vsn 5.76 [19 Mar 2018]
"c.dh_stuff", line 4201: Warning: <cast>: cast between function pointer and non-function object
c.dh_stuff: 1 warning, 0 errors, 0 serious errors

Attempt 3

    printf ("Boss action: %u,%u%s %u %p %u\n",
        bd_ptr -> episode,
        bd_ptr -> map,
        monsters,
        bd_ptr -> tag,
        (void*) (uintptr_t) (bd_ptr -> func),
        bd_ptr -> action);

Success, but seems a mite clumsy.