Re: GNAT: Performance of String functions

[tarjeij@ulrik.uio.no (Tarjei Jensen)]

> Mats Weber <Mats.Weber@elca-matrix.ch> writes:
>
>	 subtype Length_Range is Natural range 0 .. Max_Length;
>
>	 type Bounded_String (Length : Length_Range := 0) is record
>	    Data : String (1 .. Length);
>	 end record;
>

As father Jones informes his son: Our situation has not improved.

The alternative bounded string is just an unbounded string. That means that
there is a potential copy of the string each time the size changes. This may
be worse than the original GNAT version of bounded string wich only performs
the copy on assignment.

I don't think the real time people would be happy with the above solution. I
don't think they like to think of what it might do to the heap. I'm not
particulary happy with the solution either.


Greetings,

-- 
// Tarjei T. Jensen 
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