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Newsgroups: comp.lang.ada
Date: Thu, 26 Jan 2023 12:39:29 -0800 (PST)
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Subject: Re: Real_Arrays on heap with overloaded operators and clean syntax
From: Jerry <list_email@icloud.com>
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Xref: reader01.eternal-september.org comp.lang.ada:64893
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On Sunday, January 22, 2023 at 2:34:19 PM UTC-7, ...@gmail.com wrote:
> Dear ADA lovers,=20
> with stack allocation of Real_Vector ( 1 .. N ) when N >=3D 100,000 I get=
 STACK_OVERFLOW ERROR while trying to check how fast operator overloading i=
s working for an expression=20

Leo's answer is responsive to the OP but seems to have gotten buried in an =
amazingly long discussion which I haven't read. This answer appeared here y=
ears ago (was it you, Leo?) and I have used it ever since. If there needs t=
o be a long discussion maybe it could be about why this workaround is neces=
sary. I will pull out Leo's answer from his post and put my version here:

    type Real_Vector_Access    is access Real_Vector;
then
    x_Ptr : Real_Vector_Access :=3D new Real_Vector(0 .. N - 1);
    x : Real_Vector renames x_Ptr.all;

That's all. All the overloaded operators work as though the vector was decl=
ared from the stack. If you have code which formerly used stack allocation =
(of x, in this example), it will work without modification with this trick.

Jerry