C code to count the number of '1' bits in an unsigned char

Question

I need C code to return the number of 1\'s in an unsigned char in C. I need an explanation as to why it works if it\'s not obvious. I\'ve found a lot of code for a 32-bit nu

Answer 1

See the bit twiddling hacks page: http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetKernighan

there are many good solutions for this.

Also, this function in its simplest implementation is fairly trivial. You should take the time to learn how to do this.