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

tuple_is_string_elem( : : T : IsString)

Herror tuple_is_string_elem(const char* T, Hlong* IsString)

Herror T_tuple_is_string_elem(const Htuple T, Htuple* IsString)

void TupleIsStringElem(const HTuple& T, HTuple* IsString)

HTuple HTuple::TupleIsStringElem() const

static void HOperatorSet.TupleIsStringElem(HTuple t, out HTuple isString)

HTuple HTuple.TupleIsStringElem()

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

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