Swapping the nibbles in a char element
c, c++
Solution
The nibbles (or nybbles, by analogy with byte vs bite) are 4-bit chunks of a `char`.
You can swap them with:
c = ((c & 0x0F) << 4) | ((c & 0xF0) >> 4);
Problem
What are nibbles in a char element? How do we swap them? Can anyone explain the swapping of the nibbles with an example: