Re: why are these unknown identifiers?

[williams@crc.sofkin.ca (Dave Williamson)]

Jose Duarte writes:
>package X is
>    type DIRECTIONS is (UP, DOWN,...
>end X;
>with X;
>package Y is
>    subtype DIRECTIONS is X.DIRECTIONS;
>end Y;
>with Y;
>procedure BUG is
>V1 : Y.Directions := Y.UP;
>.....
>Can someone tell me why "Y.UP" and "Y.DOWN" are unknown identifiers....

Looks right to me.  Y.UP and Y.DOWN don't exist.  What you probably mean
to do is declare a dervied type as follows:

with X;
package Y is
    type DIRECTIONS is new X.DIRECTIONS;
end Y;

Dave Williamson
Software Kinetics Ltd.
Ottawa, Canada
williams@crc.sofkin.ca