How to swap the two consecutive bits of unsigned integer ?

Question

Write a program to reverse the bits of an unsigned integer ??

Answer 1

Try this to swap all consecutive bits

For 8 bit integer

u_int8 swap_bits(u_int8 ch)
{
    return ((ch & 0xAA)>>;1 ) | ( (ch & 0x55) << 1);
}

For 16 bit integer

u_int16 swap_bits(u_int16 ch)
{
    return ((ch & 0xAAAA)>>;1 ) | ( (ch & 0x5555) << 1);
}