tuple_differencetuple_differenceTupleDifferenceTupleDifferencetuple_difference (算子名称)

名称

tuple_differencetuple_differenceTupleDifferenceTupleDifferencetuple_difference — Compute the difference set of two input tuples.

参数签名

描述

tuple_differencetuple_differenceTupleDifferenceTupleDifferenceTupleDifferencetuple_difference returns the difference set from Set1Set1Set1Set1set1set_1 and Set2Set2Set2Set2set2set_2 in DifferenceDifferenceDifferenceDifferencedifferencedifference. For example, if Set1Set1Set1Set1set1set_1 contains the values [0,1,3,3,5] and Set2Set2Set2Set2set2set_2 contains the values [2,3,5,10], the output DifferenceDifferenceDifferenceDifferencedifferencedifference is [0,1]. 该算子 also allows mixed types of elements in the input tuples. However, the elements with different types will be considered as different elements, i.e. 1.0 and 1 are different. Also, this means, if Set1Set1Set1Set1set1set_1 and Set2Set2Set2Set2set2set_2 have different types of elements, their difference set could be Set1Set1Set1Set1set1set_1 itself. For example, if Set1Set1Set1Set1set1set_1 contains the values [2,5,3] and Set2Set2Set2Set2set2set_2 contains the values [2.0,5.0,3.0], the output DifferenceDifferenceDifferenceDifferencedifferencedifference is [2,5,3].

Exception: Empty input tuples

If both input tuples are empty, 该算子 returns an empty tuple. If Set1Set1Set1Set1set1set_1 is empty and Set2Set2Set2Set2set2set_2 is not, 该算子 returns an empty tuple as well. If Set2Set2Set2Set2set2set_2 is empty and Set1Set1Set1Set1set1set_1 is not, the output corresponds to Set1Set1Set1Set1set1set_1.

HDevelop In-line Operation

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

Difference := difference(Set1, Set2)

运行信息

• Multithreading type: independent (runs in parallel even with exclusive operators).
• 多线程作用域:全局(可以从任何线程调用)。
• Automatically parallelized on internal data level.

参数表

结果

如果参数均有效，算子 tuple_differencetuple_differenceTupleDifferenceTupleDifferenceTupleDifferencetuple_difference 返回值 2 ( H_MSG_TRUE) .

可替代算子

tuple_symmdifftuple_symmdiffTupleSymmdiffTupleSymmdiffTupleSymmdifftuple_symmdiff

参考其它

tuple_intersectiontuple_intersectionTupleIntersectionTupleIntersectionTupleIntersectiontuple_intersection, tuple_symmdifftuple_symmdiffTupleSymmdiffTupleSymmdiffTupleSymmdifftuple_symmdiff, tuple_uniontuple_unionTupleUnionTupleUnionTupleUniontuple_union

模块

Foundation

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