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Newsgroups: comp.lang.ada
Subject: Re: C Interface example
References: <1170516037.435847.326440@p10g2000cwp.googlegroups.com>
From: Stephen Leake <stephen_leake@stephe-leake.org>
Date: Sun, 04 Feb 2007 09:32:12 -0500
Message-ID: <ulkjeat8z.fsf@stephe-leake.org>
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Date: 2007-02-04T09:32:12-05:00
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artifact.one@googlemail.com writes:

> (vector.h)
>
> #ifndef VECTOR_H
> #define VECTOR_H
>
> float *vec_addNf(float *, float *, unsigned int);
>
> #endif
>
> (vec_add.c)
>
> #include "vector.h"
>
> float *vec_add(float *va, float *vb, unsigned int ne)
> {
>   unsigned int ind;
>   for (ind = 0; ind < ne; ++ind)
>     va[ind] += vb[ind];
>   return va;
> }
>
> Now what would be the most simple and portable way to write
> a vector,ads and vector.adb file? 

Drop the C code entirely, and use SAL;
http://stephe-leake.org/ada/sal.html

That way, you get array length checks, and appropriate exceptions,
rather than status, for singularities.

-- 
-- Stephe