const type: reference

The type reference describes a reference to any object.

const func type: getType (in reference: aReference)

Get the type of the referenced object.

Returns:

the type of the object referenced by aReference.

const reference: NIL

Reference to no element.

const reference: (attr reference) . value

Default value of reference (NIL).

const func boolean: (in reference: ref1) = (in reference: ref2)

Check if two references are equal.

Returns:

TRUE if both references are equal, FALSE otherwise.

const func boolean: (in reference: ref1) <> (in reference: ref2)

Check if two references are equal.

Returns:

FALSE if both references are equal, TRUE otherwise.

const func integer: compare (in reference: ref1, in reference: ref2)

Compare two references.

Returns:

-1, 0 or 1 if the first argument is considered to be respectively less than, equal to, or greater than the second.

const func integer: hashCode (in reference: aReference)

Compute the hash value of a reference.

Returns:

the hash value.

const func string: str (ref reference: aReference)

Convert a reference to a string.

Returns:

the string result of the conversion.

Raises:

MEMORY_ERROR - Not enough memory to represent the result.

const proc: setType (in reference: aReference, in type: aType)

Set the type of the object 'aReference' to 'aType'.

Raises:

RANGE_ERROR - If 'aReference' is NIL.