1. middle-endian/mixed-endian

 

2. When is htonl(x) != ntohl(x) ?

So, a crazy machine may have a 8 bits right rotated from network byte order as its host byte order. On such a machine, htonl and ntohl would not be the same. htonl would have to rotate left by 8 bits, and ntohl would have to rotate right by 8 bits. – 

 

3. 用一个语句判断大小端

1 int isLittleEndian(void)2 { 3 return *(char *)(int []){ 1} == 1; 4 }

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