Re: [DNG] Making sense of C pointer syntax.

Author: Hendrik Boom
Date:
To: dng
Subject: Re: [DNG] Making sense of C pointer syntax.

On Thu, Mar 31, 2016 at 03:58:49PM +0200, aitor_czr wrote:
> Hi,
>
> On 03/31/16 13:38, Emiliano Marini <emilianomarini82@???> wrote:
> >Besides, * and [] are interchangeable. You can define a string as an array
> >and use it later as a pointer:
> >
> >char s[] = "hola"; > >char x = s[1]; // Here x = 'o' > >char y = *(s+2); // Here y = 'l'

> >
> >And vice versa:
> >
> >char *s = "hola"; > >char x = s[0]; // Here x = 'h' > >char y = *(s+3); // Here y = 'a'

>
> This is right, and the following sintax are analogous:
>
> *(p+i) <---> p[i]

In fact, in the original C specification, p[i] was *defined* to mean *(p+i).

-- hendrik

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