Algorithm for copying N bits at arbitrary position from one int to another

Question

An interesting problem I\'ve been pondering the past few days is how to copy one integer\'s bits into another integer at a given position in the destination integer. So, for exa

Answer 1

Generalized GRB-fnieto form...

template 
T setbits4(T destination, T source, int at, int numbits)
{
    T mask = (((T)-1)>>(sizeof(T)*8-numbits))<