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From: "Jeffrey R.Carter" <spam.jrcarter.not@spam.acm.org.not>
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Subject: Re: GNAT Error?
Date: Sat, 17 Feb 2024 00:45:08 +0100
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On 2024-02-17 00:26, Niklas Holsti wrote:
> 
> You showed two copies of the declaration (spec) of package Alloc_Err, but you 
> did not show the body of the package. Based on the error message pointing to 
> alloc_err.adb (and not .ads), GNAT thinks the error is in the body. Please show 
> the body of the package.
> 

Oops. Well, I've managed to simplify the reproducer to

procedure Alloc2 is
    type Grid is array (Positive range <>, Positive range <>) of Integer with
       Dynamic_Predicate => Grid'First (1) = 1 and Grid'First (2) = 1;

    type Grid_Ptr is access Grid;

    Data : Grid_Ptr := new Grid (1 .. 10, 1 .. 20);
begin -- Alloc2
    null;
end Alloc2;

which results in

alloc2.adb:7:23: error: invalid use of subtype mark in expression or call

Line 7 is the declaration of Data.

-- 
Jeff Carter
"I like it when the support group complains that they have
insufficient data on mean time to repair bugs in Ada software."
Robert I. Eachus
91