Re: Real_Arrays on heap with overloaded operators and clean syntax

[Jerry <list_email@icloud.com>]

On Sunday, January 22, 2023 at 2:34:19 PM UTC-7, ...@gmail.com wrote:
> Dear ADA lovers, 
> with stack allocation of Real_Vector ( 1 .. N ) when N >= 100,000 I get STACK_OVERFLOW ERROR while trying to check how fast operator overloading is working for an expression 

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 years ago (was it you, Leo?) and I have used it ever since. If there needs to be a long discussion maybe it could be about why this workaround is necessary. 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 := 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 declared 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