xpfPrevious

 
SYNTAX:
 
xpfPrevious (iteratorId : GENERIC)
             result     : BOOLEAN;
 
To be completed
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 reuturned 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.
This function is equivalent to the EDMinterface^ function sdaiPrevious.
See also xpxPrevious.