i am beginner in c and there are two claims i dont know if they are true
1.To read bytes you can use system call "read", but it is recommended to read one byte in each reading, and not read all the houses together.
2.When you want to save memory, you can use bit-field. This way you can "pack" several objects in one memory word and refer to the address of each bit, using the "&" address operator.
thank you!