Passing Range Parameters to new instance of unbounded, boxed <> array in Ada

[Mace Ayres <mace.ayres@icloud.com>]

1) I declare - Type a_gear is array(index range <>) of Intgeger;

2) I want to create an instance of type a_gear
     Gear : a_gear (var_strt..var_end);
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Both 1 and 2 must be declared after …. an ‘Is’ and before a ‘BEGIN’ of any code block

but I can’t code a sub program to get a user’s input for var_strt and var_end until after a BEGIN statement which too late to pass to the parameterized unbounded/Box array gear.

I am not getting the proper visibility and scope to capture user’s parameters before I declare an instance, gear, of the type a_gear, an unbounded array?