Converting the endianness

While serialization libraries deal with the endianness under the hood, there are situations where developers might want to implement a lightweight communication protocol themselves. 

While the C++ Standard Library does not provide functions for serialization, developers may utilize the fact that, in binary network protocols, byte order is defined and is always big-endian.

The Standard Library provides a set of functions that can be used for conversion between the current platform (hardware) and big-endian (network) byte orders:

• uint32_t htonl (uint32_t value): Converts uint32_t from hardware to network order
• uint32_t ntohl (uint32_t value): Converts uint32_t from network to hardware order
• uint16_t htons (uint16_t value): Converts uint16_t from hardware to network order 
• uint16_t ntohl (uint16_t value): Converts...