lwIP
2.1.0
Lightweight IP stack
|
#include "lwip/arch.h"
Macros | |
#define | IP_HDR_GET_VERSION(ptr) ((*(u8_t*)(ptr)) >> 4) |
IP protocol definitions
#define IP_HDR_GET_VERSION | ( | ptr | ) | ((*(u8_t*)(ptr)) >> 4) |
This operates on a void* by loading the first byte