tuple_is_string_elemtuple_is_string_elemTupleIsStringElemTupleIsStringElem (Operator)
Name
tuple_is_string_elemtuple_is_string_elemTupleIsStringElemTupleIsStringElem — Test whether the types of the elements of a tuple are of type
string.
Signature
Herror tuple_is_string_elem(const char* T, Hlong* IsString)
Herror T_tuple_is_string_elem(const Htuple T, Htuple* IsString)
Description
tuple_is_string_elemtuple_is_string_elemTupleIsStringElemTupleIsStringElemTupleIsStringElem tests the elements of the input tuple TTTTt
separately.
For all elements of type string the value 1 (true) is returned in
IsStringIsStringIsStringIsStringisString, else 0 (false) is returned.
Exception: Empty input tuple
If the input tuple is empty, the operator returns an empty tuple.
HDevelop In-line Operation
HDevelop provides an in-line operation for tuple_is_string_elemtuple_is_string_elemTupleIsStringElemTupleIsStringElemTupleIsStringElem,
which can be used in an expression in the following syntax:
IsString := is_string_elem(T)
Execution Information
- Multithreading type: independent (runs in parallel even with exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Parameters
TTTTt (input_control) tuple(-array) → HTupleHTupleHtuple (string / real / integer / handle) (string / double / int / long / HHandle) (HString / double / Hlong / HHandle) (char* / double / Hlong / handle)
Input tuple.
IsStringIsStringIsStringIsStringisString (output_control) number(-array) → HTupleHTupleHtuple (integer) (int / long) (Hlong) (Hlong)
Are the elements of the input tuple of type string?
Example (HDevelop)
tuple_is_string_elem ([3.1416,'pi',3], IsString)
* IsString = [false, true, false]
Result
If the parameters are valid, the operator
tuple_is_string_elemtuple_is_string_elemTupleIsStringElemTupleIsStringElemTupleIsStringElem returns the value 2 (H_MSG_TRUE).
Alternatives
tuple_typetuple_typeTupleTypeTupleTypeTupleType,
tuple_type_elemtuple_type_elemTupleTypeElemTupleTypeElemTupleTypeElem,
tuple_is_stringtuple_is_stringTupleIsStringTupleIsStringTupleIsString
See also
tuple_is_mixedtuple_is_mixedTupleIsMixedTupleIsMixedTupleIsMixed,
tuple_is_inttuple_is_intTupleIsIntTupleIsIntTupleIsInt,
tuple_is_realtuple_is_realTupleIsRealTupleIsRealTupleIsReal,
tuple_is_stringtuple_is_stringTupleIsStringTupleIsStringTupleIsString,
tuple_is_mixedtuple_is_mixedTupleIsMixedTupleIsMixedTupleIsMixed,
tuple_is_int_elemtuple_is_int_elemTupleIsIntElemTupleIsIntElemTupleIsIntElem,
tuple_is_real_elemtuple_is_real_elemTupleIsRealElemTupleIsRealElemTupleIsRealElem,
tuple_is_numbertuple_is_numberTupleIsNumberTupleIsNumberTupleIsNumber,
tuple_is_handle_elemtuple_is_handle_elemTupleIsHandleElemTupleIsHandleElemTupleIsHandleElem,
tuple_is_handletuple_is_handleTupleIsHandleTupleIsHandleTupleIsHandle
Module
Foundation