Re: Command Languages Versus Programming Languages

In article <vhr0fj$1bq0o$1@dont-email.me>,
James Kuyper  <jameskuyper@alumni.caltech.edu> wrote:

On 11/22/24 14:05, Dan Cross wrote:

In article <87h67zrtns.fsf@doppelsaurus.mobileactivedefense.com>,
Rainer Weikusat <rweikusat@talktalk.net> wrote:...

char **argv
>
declares an array of pointers

>
No, it declares a pointer to a pointer to char.

>
Agreed.
>

(as each pointer in C points to an array)

>
That's absolutely not true. A pointer in C may refer to
an array, or a scalar. Consider,
>
char c;
char *p = &c;
char **pp = &p;

>
Not actually relevant. For purposes of pointer arithmetic, a pointer to
a single object is treated as if it pointed at the first element of a
1-element array of that object's type.

a) Please stop emailing me this stuff _and_ posting it here.  I
have asked you this in the past, and previously you'd said that
it was because you switched news readers.  That's fine, but that
was a year ago or more.

b) What you are referring to, from the section on Additive
Operators (6.5.7 in n3220; 6.5.6 in C99) is in reference to
pointer arithmetic; the statement that I was replying to was a
general statement about pointers, independent of issues of
pointer arithmetic.  That is, it is not the case that, "each
pointer in C points to an array".  The above example, to which
you replied, is a counterpoint to the general statement.

So while what you are saying is true, it doesn't change the
general point.

- Dan C.