Re: Random Input-Size and recognizing ENTER-press

[Pascal Obry <pascal@obry.net>]

Jeffrey Carter <spam@spam.com> writes:

> You might want to take a look at the source for Ada.Strings.Unbounded from
> GNAT before advocating an approach such as this. Every addition of a
> Character allocates a new String, copies the old String + new Character into
> the new String, and deallocates the old String. For a string of N
> Characters, that's N allocations and deallocations. Using Get_Line to obtain
> the Characters can improve that to N / Buffer'Length + 1.

That's not right. There is a buffer that is allocated when there is no more
space into an Unbounded_String. So there is far less that N allocation when
adding N characters into an Unbounded_String.

Pascal.

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