Re: Ada array vs C pointer (call by reference)

[Stephen Leake <Stephe.Leake@nasa.gov>]

Robert A Duff <bobduff@shell01.TheWorld.com> writes:

> Keith Thompson <kst-u@mib.org> writes:
>
>> Interfaces.C.C_Float, which (assuming the Ada implementation gets it
>> right), is guaranteed to match C's float, or of using Float, which has
>> no such guarantee (but saves a little typing).  Why would you even
>> consider using Float?
>
> You might have a program that uses Float all over the place,
> and you want to add some interface to C in one tiny corner
> of that program.  You might be tempted to use Float at the
> interface to C in order to avoid a lot of type conversions.

A better way to avoid a lot of type conversions is to provide a thin C
interface using Interfaces.C.C_Float, and a thin Ada wrapper that does
the type conversion to Ada.Float (or some other user provided type).

-- 
-- Stephe