tuple_lshtuple_lshTupleLshTupleLshtuple_lsh (算子)

名称

tuple_lshtuple_lshTupleLshTupleLshtuple_lsh — 按位向左移动元组。

签名

描述

tuple_lshtuple_lshTupleLshTupleLshTupleLshtuple_lsh shifts the tuple TTTTtt bitwise to the left by ShiftShiftShiftShiftshiftshift places. If no overflow occurs, this operation is equivalent to a multiplication by 2^{ShiftShiftShiftShiftshiftshift}. If TTTTtt is negative, the result depends on the hardware. If ShiftShiftShiftShiftshiftshift 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 TTTTtt or ShiftShiftShiftShiftshiftshift 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.

例外：空输入元组

If either or both of the input tuples are empty, the operator returns an empty tuple.

HDevelop 内联操作

HDevelop provides an in-line operation for tuple_lshtuple_lshTupleLshTupleLshTupleLshtuple_lsh, which can be used in an expression in the following syntax:

Lsh := lsh(T, Shift)

执行信息

• 多线程类型：独立（即使使用独占算子也能并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 未采用并行化处理。

参数

替代

tuple_multtuple_multTupleMultTupleMultTupleMulttuple_mult

另见

tuple_rshtuple_rshTupleRshTupleRshTupleRshtuple_rsh

模块

基础