This is the bit shift operator. Documentation
The signed left shift operator "<<"
shifts a bit pattern to the left, and
the signed right shift operator ">>"
shifts a bit pattern to the right. The
bit pattern is given by the left-hand
operand, and the number of positions
to shift by the right-hand operand.
The unsigned right shift operator
">>>" shifts a zero into the leftmost
position, while the leftmost position
after ">>" depends on sign extension.
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