是否有任何关于 htonll、ntohll、ntohl、htonl 的书面函数,例如我在论坛上找到的这个函数:
uint32_t ntohl(uint32_t const net) {
uint8_t data[4] = {};
memcpy(&data, &net, sizeof(data));
return ((uint32_t) data[3] << 0)
| ((uint32_t) data[2] << 8)
| ((uint32_t) data[1] << 16)
| ((uint32_t) data[0] << 24);
}
或者你能告诉我每一个的数据转移方案,然后像上面这个一样写吗?
编辑:
这些是否正确:
uint32_t htonl(uint32_t const net) {
uint8_t data[4] = {};
memcpy(&data, &net, sizeof(data));
return ((uint32_t) data[0] << 0)
| ((uint32_t) data[1] << 8)
| ((uint32_t) data[2] << 16)
| ((uint32_t) data[3] << 24);
}
uint64_t htonll(uint64_t const net) {
uint8_t data[4] = {};
memcpy(&data, &net, sizeof(data));
return ((uint64_t) data[0] << 0)
| ((uint64_t) data[1] << 8)
| ((uint64_t) data[2] << 16)
| ((uint64_t) data[3] << 24);
}
uint64_t ntohll(uint64_t const net) {
uint8_t data[4] = {};
memcpy(&data, &net, sizeof(data));
return ((uint64_t) data[3] << 0)
| ((uint64_t) data[2] << 8)
| ((uint64_t) data[1] << 16)
| ((uint64_t) data[0] << 24);
}