TRANS transfers a message

Syntax:

    TRANS(<origin list>, | FIRST | LAST| <origin pointer> |, | A | B |, 
        <destination list>, | FIRST | LAST | <destination pointer> |);

It is used to transfer a message from one position in a list to another position in another or the same list.

• <origin list> is the name of the list from which the message is taken.
•  FIRST | LAST | <origin pointer> indicates the position of the message to be sent.
•  <destination list> is the name of the list to which the message has to be sent.
•  | A | B | is only used if a <destination pointer> follows. It is used to indicate if the message has to be put after or before the position indicated by the pointer.
•  FIRST | LAST | <destination pointer> indicates the position to which the message has to be sent.

This procedure can be used in nodes of any type.

Example:

     SCAN(IL_Depot, P_Item) IF Cost > 500 THEN STOPSCAN;
     TRANS(IL_Depot, P_Item, B, NewProc, P_Rear);

After a scan in IL of node Dept the first message with Cost > 500 is pointed. Then it is transferred to the EL of node NewProc before the element pointed by P_Rear.
 

Mon Mar 20 17:37:52 PST 2000