Cast via VALUE function pointer between object pointer
#150
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pointer (ruby/fiddle#150) With gcc 13 and -pedantic: ``` ../../../src/ext/fiddle/function.c: In function ‘function_call’: ../../../src/ext/fiddle/function.c:374:15: error: ISO C forbids conversion of object pointer to function pointer type [-Wpedantic] 374 | args.fn = (void(*)(void))NUM2PTR(cfunc); | ^ ../../../src/ext/fiddle/pointer.c: In function ‘rb_fiddle_ptr_inspect’: ../../../src/ext/fiddle/pointer.c:573:84: error: ISO C forbids conversion of function pointer to object pointer type [-Wpedantic] 573 | RB_OBJ_CLASSNAME(self), (void *)data, data->ptr, data->size, (void *)data->free); | ^ ``` ruby/fiddle@6421e317a1
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With gcc 13 and -pedantic: