Yeah, i know you can even do it without providing the type: #define wl_container_of(ptr, sample, member) \ (void*)((char *)(ptr) + ((char*)(sample)

Yeah, i know you can even do it without providing the type: #define wl_container_of(ptr, sample, member) \ (void*)((char *)(ptr) + ((char*)(sample) - (char*)(&(sample)->member)))