insert
— Assignment of a value to a tuple element.
insert
is obsolete and is only provided for
reasons of backward compatibility.
The modifying version of the insert
operator was replaced by the
operator assign_at
.
This operator uses the same notation in the full text editor, so that it is
used automatically.
The non-modifying version of the insert
operator is replaced by the
new operator tuple_replace
.
insert
assigns a single value to a specific element of a tuple.
In the full text editor an insert operation is simply entered with the help of the assignment operator sign := and the index access operator sign [ ] for the result variable, e.g.: Areas[Radius-1] := Area
If the operator window is used for entering the insert operator,
insert
must be entered into the operator combo box as the
operator name.
This opens the parameter area, where the parameter Value
represents
the expression that has to be evaluated to one value and assigned to the
element at position Index
within the tuple Input
.
The parameter Result
gets the name of the variable where the result
has to be stored.
If the input tuple that is passed via the parameter Input
and the
output tuple that is passed in Result
are identical (and only in
that case), the insert
operator is listed and can be written in the
full text editor in the above assignment notation.
In this case, the input tuple is modified and the correct operator notation
for above assignment would be:
insert (Areas, Area, Radius-1, Areas)
If the Input
tuple and the Result
tuple differ, the input
tuple will not be modified.
In this case, within the program listing only the operator notation can be
used:
insert (Areas, Area, Radius-1, Result)
This is the same as: Result := Areas Result[Radius-1] := Area
Please note that the operator insert
will not increase the tuple
if the tuple already stores a value at the passed index.
Instead of that the element at the position Index
will be replaced.
Hence, for the Value
parameter exactly one single value (or an
expression that evaluates to one single value) must be passed.
If the passed Index
parameter is beyond the current tuple size,
the tuple will be increased to the required size. The tuple elements
that were inserted between the hitherto last element and the new element
are undefined.
Input
(input_control) real(-array) →
(real / integer / string)
Tuple, where the new value has to be inserted.
Default value: []
Value
(input_control) real →
(real / integer / string)
Value that has to be inserted.
Default value: 1
Typical range of values: 0
≤
Value
≤
1000000
Index
(input_control) integer →
(integer)
Index position for new value.
Default value: 0
Suggested values: 0, 1, 2, 3, 4, 5, 6
Minimum increment: 1
Result
(output_control) real(-array) →
(real / integer / string)
Result tuple with inserted values.
If the expression is correct
insert
returns 2 (H_MSG_TRUE). Otherwise an
exception is raised and an error code returned.
Foundation