ClassesClasses | | Operators

tuple_is_realtuple_is_realTupleIsRealTupleIsReal (Operator)


tuple_is_realtuple_is_realTupleIsRealTupleIsReal — Test if the internal representation of a tuple is of type real.


tuple_is_real( : : T : IsReal)

Herror tuple_is_real(double T, Hlong* IsReal)

Herror T_tuple_is_real(const Htuple T, Htuple* IsReal)

void TupleIsReal(const HTuple& T, HTuple* IsReal)

HTuple HTuple::TupleIsReal() const

static void HOperatorSet.TupleIsReal(HTuple t, out HTuple isReal)

HTuple HTuple.TupleIsReal()


tuple_is_realtuple_is_realTupleIsRealTupleIsRealTupleIsReal tests if the internal representation of the input tuple TTTTt is of type real. In that case the value 1 (true) is returned in IsRealIsRealIsRealIsRealisReal, otherwise the value 0 (false) is returned. If a tuple consists of real elements only, IsRealIsRealIsRealIsRealisReal can nevertheless be 0 in case the internal representation is H_TYPE_MIXED; see tuple_typetuple_typeTupleTypeTupleTypeTupleType for details.

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_realtuple_is_realTupleIsRealTupleIsRealTupleIsReal, which can be used in an expression in the following syntax:

IsReal := is_real(T)


Even if all tuple elements are of type real, tuple_is_realtuple_is_realTupleIsRealTupleIsRealTupleIsReal returns 0 (false) if the internal representation of the tuple is of type H_TYPE_MIXED. To test if the elements of the tuple are of type real the operator tuple_is_real_elemtuple_is_real_elemTupleIsRealElemTupleIsRealElemTupleIsRealElem should be used.

Execution Information


TTTTt (input_control)  number(-array) HTupleHTupleHtuple (real / integer / string / handle) (double / int / long / string / HHandle) (double / Hlong / HString / HHandle) (double / Hlong / char* / handle)

Input tuple.

IsRealIsRealIsRealIsRealisReal (output_control)  number HTupleHTupleHtuple (integer) (int / long) (Hlong) (Hlong)

Is the input tuple of type real?

Example (HDevelop)

tuple_is_real ([3.1416,'pi',3], IsRealA)
* IsRealA = false
tuple_is_real ([1.0,2.0,3.0], IsRealB)
* IsRealB = true
tuple_is_real ([], IsRealC)
* IsRealC = true


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


tuple_typetuple_typeTupleTypeTupleTypeTupleType, tuple_is_numbertuple_is_numberTupleIsNumberTupleIsNumberTupleIsNumber, tuple_is_real_elemtuple_is_real_elemTupleIsRealElemTupleIsRealElemTupleIsRealElem

See also

tuple_is_inttuple_is_intTupleIsIntTupleIsIntTupleIsInt, tuple_is_stringtuple_is_stringTupleIsStringTupleIsStringTupleIsString, tuple_is_handletuple_is_handleTupleIsHandleTupleIsHandleTupleIsHandle



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