tuple_is_real🔗
Short description🔗
tuple_is_real — Test if the internal representation of a tuple is of type real.
Signature🔗
tuple_is_real( tuple T, out number IsReal )
Description🔗
tuple_is_real tests if the internal representation of the
input tuple T is of type real. In that case
the value 1 (true) is returned in IsReal, otherwise the
value 0 (false) is returned. If a tuple consists of real
elements only, IsReal can nevertheless be 0 in case the internal
representation is H_TYPE_MIXED; see tuple_type 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_real,
which can be used in an expression in the following syntax:
IsReal := is_real(T)
Attention🔗
Even if all tuple elements are of type real,
tuple_is_real 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_elem
should be used.
Execution information🔗
Execution information
-
Multithreading type: reentrant (runs in parallel with non-exclusive operators).
-
Multithreading scope: global (may be called from any thread).
-
Processed without parallelization.
Parameters🔗
T (input_control) tuple(-array) → (real / integer / string / handle)
Input tuple.
IsReal (output_control) number → (integer)
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
Result🔗
If the parameters are valid, the operator
tuple_is_real returns the value 2 (H_MSG_TRUE).
Combinations with other operators🔗
Module🔗
Foundation