tuple_is_numbertuple_is_numberTupleIsNumberTupleIsNumbertuple_is_number (算子名称)

名称

tuple_is_numbertuple_is_numberTupleIsNumberTupleIsNumbertuple_is_number — Check a tuple (of strings) whether it represents numbers.

参数签名

描述

tuple_is_numbertuple_is_numberTupleIsNumberTupleIsNumberTupleIsNumbertuple_is_number checks each element of the input tuple TTTTtt whether it represents a number. If the element is a number (real or integer), 1 is returned for that element. If the element is a string, it is checked whether the string represents a number. If so, 1 is returned, otherwise 0.

Exception: Empty input tuple

If the input tuple is empty, 该算子 returns an empty tuple.

HDevelop In-line Operation

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

IsNumber := is_number(T)

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)。
• 未经并行化处理。

参数表

可替代算子

tuple_is_inttuple_is_intTupleIsIntTupleIsIntTupleIsInttuple_is_int, tuple_is_realtuple_is_realTupleIsRealTupleIsRealTupleIsRealtuple_is_real, tuple_typetuple_typeTupleTypeTupleTypeTupleTypetuple_type, tuple_is_nan_elemtuple_is_nan_elemTupleIsNanElemTupleIsNanElemTupleIsNanElemtuple_is_nan_elem

参考其它

tuple_numbertuple_numberTupleNumberTupleNumberTupleNumbertuple_number

模块

Foundation