Uses in implementation part of an unit

Wed, 22 Oct 1997 14:00:20 +0100 (MET)


GPC does NOT allow "uses" in the implementation section of a unit.  That is,
the following piece of code cannot compile.

	unit a;

	interface

	

	implementation

	uses
	  b;

	

	begin
	end.


In most (Borland-style) programs, moving "uses b" to the interface part (an
obvious workaround; or *solution* if the current GPC behavior is a feature
and not a bug) should not make a difference, but I imagine that there could
be a few exceptions.

The Turbo Pascal 7.0 manual says about this:

"A uses clause in the implementation section allows you to further hide the
inner details of a unit, because units used in the implementation section
aren't visible to users of the unit.  It also enables you to construct
mutually dependent units."

Jesper Lund


Jesper Lund (jel@hha.dk)

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