tuple_select_masktuple_select_maskTupleSelectMaskTupleSelectMasktuple_select_mask (算子)

名称

tuple_select_masktuple_select_maskTupleSelectMaskTupleSelectMasktuple_select_mask — 在掩模中选择元组的指定元素。

签名

描述

tuple_select_masktuple_select_maskTupleSelectMaskTupleSelectMaskTupleSelectMasktuple_select_mask selects one or more single elements of the tuple TupleTupleTupleTupletupletuple and returns them with SelectedSelectedSelectedSelectedselectedselected. For every element MaskMaskMaskMaskmaskmask determines the corresponding element to select. If the value is greater than 0, the appropriate element is selected. Thus the length of the two input tuples has to be equal and MaskMaskMaskMaskmaskmask may only contain integer or float values.

例外：空输入元组

If both input tuples are empty, the operator returns an empty tuple. If only one of the input tuples is empty and the other is not, an exception is raised.

HDevelop 内联操作

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

Selected := select_mask(Tuple, Mask)

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_first_ntuple_first_nTupleFirstNTupleFirstNTupleFirstNtuple_first_n, tuple_last_ntuple_last_nTupleLastNTupleLastNTupleLastNtuple_last_n, tuple_str_bit_selecttuple_str_bit_selectTupleStrBitSelectTupleStrBitSelectTupleStrBitSelecttuple_str_bit_select, tuple_concattuple_concatTupleConcatTupleConcatTupleConcattuple_concat, tuple_selecttuple_selectTupleSelectTupleSelectTupleSelecttuple_select, tuple_select_rangetuple_select_rangeTupleSelectRangeTupleSelectRangeTupleSelectRangetuple_select_range, tuple_select_ranktuple_select_rankTupleSelectRankTupleSelectRankTupleSelectRanktuple_select_rank

另见

tuple_removetuple_removeTupleRemoveTupleRemoveTupleRemovetuple_remove

模块

基础