Bit Operation #6

Extract a single bit from a character.

int extractBit(char byte, unsigned int pos) 
{
    assert(pos < 8);

    return ((byte >> pos) & 1);
}

Extract a range of bits from a character.

char extractBitRange(char byte, unsigned int startPos, unsigned int offset) 
{
   assert((startPos + offset) < 8);
   return (byte >> startPos) & ~(0xfe << offset);
}