Reading “integer” size bytes from a char* array.

Question

I want to read sizeof(int) bytes from a char* array.

a) In what scenario\'s do we need to worry if endianness needs to be checked?

Answer 1

Why read when you can just compare?

bool AreEqual(int i, char *data)
{
   return memcmp(&i, data, sizeof(int)) == 0;
}

If you are worrying about endianness when you need to convert all of integers to some invariant form. htonl and ntohl are good examples.