arithmetic right shift

In a arithmetic right shift a >> n, bits in a are shifted to the right (equivalent to dividing by $2^n$). Bits shifted in from the left are filled with the most significant digit in the original a, e.g. if a is an int with 4 bytes (32 bits) and the 32nd bit is $k$, $n$ bits to the left will be $k$ after an arithmetic right shift of $n$ places.

Shift type in C

In C, right shifts applied to signed integer types are arithmetic right shifts.