tuple_is_mixedtuple_is_mixedTupleIsMixedTupleIsMixedtuple_is_mixed (算子名称)

名称

tuple_is_mixedtuple_is_mixedTupleIsMixedTupleIsMixedtuple_is_mixed — Test whether a tuple is of type mixed.

参数签名

描述

tuple_is_mixedtuple_is_mixedTupleIsMixedTupleIsMixedTupleIsMixedtuple_is_mixed tests the input tuple TTTTtt. If the type is mixed, the value 1 (true) is returned in IsMixedIsMixedIsMixedIsMixedisMixedis_mixed, else 0 (false) is returned. If a tuple consists of elements with equal data types only, IsMixedIsMixedIsMixedIsMixedisMixedis_mixed can nevertheless be 1 in case the internal representation is H_TYPE_MIXED; see tuple_typetuple_typeTupleTypeTupleTypeTupleTypetuple_type for details.

If the type of the tuple is mixed and you need all elements of the tuple TTTTtt to be of one data type only, you can explicitly convert the tuple to a better fitting representation by using tuple_inttuple_intTupleIntTupleIntTupleInttuple_int, tuple_realtuple_realTupleRealTupleRealTupleRealtuple_real or tuple_stringtuple_stringTupleStringTupleStringTupleStringtuple_string with Format='s'. This improves processing speed for the converted tuple which is especially useful if the tuple is used many times afterwards.

Exception: Empty input tuple

If the input tuple is empty, the operator returns 1.

HDevelop In-line Operation

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

IsMixed := is_mixed(T)

运行信息

• Multithreading type: independent (runs in parallel even with exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

参数表

例程 (HDevelop)

tuple_is_mixed ([3.1416,'pi',3], IsMixedA)
* IsMixedA = true
tuple_is_mixed (['a','b','111'], IsMixedB)
* IsMixedB = false
tuple_is_mixed ([], IsMixedC)
* IsMixedC = true

结果

If the parameters are valid, the operator tuple_is_mixedtuple_is_mixedTupleIsMixedTupleIsMixedTupleIsMixedtuple_is_mixed returns the value 2 ( H_MSG_TRUE) .

可替代算子

tuple_typetuple_typeTupleTypeTupleTypeTupleTypetuple_type, tuple_is_numbertuple_is_numberTupleIsNumberTupleIsNumberTupleIsNumbertuple_is_number

参考其它

tuple_is_inttuple_is_intTupleIsIntTupleIsIntTupleIsInttuple_is_int, tuple_is_realtuple_is_realTupleIsRealTupleIsRealTupleIsRealtuple_is_real

模块

Foundation

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