About size int in C

Question

As we all know integer of 4 bytes i.e. 2^4=16 bits....
but
it's allocate 32 bits in memory as 1 byte for sign representation.....
but
we can re present sign by 1 bit also......
so, why to use whole 8 bits?

Answer 1

Bits calculation goes like this;
sizeof(<type_name>) * <bits_per_byte>
So when size of `int` type was 4;
4 * 8 => 32 bit integer
And the sign marker is just 1 bit, not 1 byte (8 bits)

Answer 2

Ipang thanks buddy..... 👍🏻

Answer 3

You're welcome buddy 👌