xpfPrevious

FUNCTION xpfPrevious (iteratorId : GENERIC)
                      result     : BOOLEAN;
                

The xpfPrevious function positions the specified iterator, as specified by the <iteratorId> argument, to the aggregate element immediately before the current element which will then be the new current element of the iterator after this operation is completed. The result is returned in the argument <result>, and is TRUE if the specified iterator have got a new current element, and FALSE if there was an error during operation.

Arguments

Return Value

Options

Example

<Missing Example>

See also