◄Keywords► ◄Contents► ◄Index► ◄Back► USES <identifier list>; Description The USES clause identifies the units used by a program file. If you use a procedure or function from a unit, include the unit's name in a USES clause. There is one exception: you may use anything in the System unit without including the System unit in a USES clause. Place the USES clause after the program head and before any other declarations. Separate multiple identifiers with commas. See also: IMPLEMENTATION, INTERFACE, PROGRAM, UNIT