tuple_lsh — Shift a tuple bitwise to the left.
tuple_lsh shifts the tuple T bitwise to the left by
Shift places. If no overflow occurs, this operation is
equivalent to a multiplication by 2^{Shift}. If T
is negative, the result depends on the hardware. If Shift
is negative or larger than 32, the result is undefined. If both
tuples have the same length the corresponding elements of both
tuples are shifted. Otherwise, either T or Shift
must have length 1. In this case, the operation is performed for
each element of the longer tuple with the single element of the
other tuple. The input tuples must contain only integer numbers.
If either or both of the input tuples are empty, the operator returns an empty tuple.
HDevelop provides an in-line operation for tuple_lsh,
which can be used in an expression in the following syntax:
T (input_control) integer(-array) → (integer)
Input tuple.
Shift (input_control) integer(-array) → (integer)
Number of places to shift the input tuple.
Lsh (output_control) integer(-array) → (integer)
Shifted input tuple.
Foundation