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Baloff sade:
> Hello
> why is it that the lower index in an array occupies the highest
> number address. e.g.
>

The stack usually grows downward.

Tobias
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Baloff wrote:

> why is it that the lower index in an array occupies the highest
> number address. e.g.

Do you know negative numbers?

--
Salu2

Hello
why is it that the lower index in an array occupies the highest
number address. e.g.

#include <iostream>
using namespace std;

int main() {
int a[10];
cout << "sizeof(int) = "<< sizeof(int) << endl;
for(int i = 0; i < 10; i++)
cout << "&a[" << i << "] = "
<< (long)&a[i] << endl;
}

sizeof(int) = 4
&a[0] = -1073743552 why not start 3516
&a[1] = -1073743548
&a[2] = -1073743544
&a[3] = -1073743540
&a[4] = -1073743536
&a[5] = -1073743532
&a[6] = -1073743528
&a[7] = -1073743524
&a[8] = -1073743520
&a[9] = -1073743516 and ends with 3552

where the numbers located on the physical drive relative to each other?

thanks

On 01 Aug 2005 07:11:34 +1000, Baloff <> wrote in
comp.lang.c++:

>
> Hello
> why is it that the lower index in an array occupies the highest
> number address. e.g.
>
> #include <iostream>
> using namespace std;
>
> int main() {
> int a[10];
> cout << "sizeof(int) = "<< sizeof(int) << endl;
> for(int i = 0; i < 10; i++)
> cout << "&a[" << i << "] = "
> << (long)&a[i] << endl;
^^^^^^^^^^^

Change this to (unsigned long)&a[1] and prepare to be thrilled and
delighted.

> }
>
> sizeof(int) = 4
> &a[0] = -1073743552 why not start 3516
> &a[1] = -1073743548
> &a[2] = -1073743544
> &a[3] = -1073743540
> &a[4] = -1073743536
> &a[5] = -1073743532
> &a[6] = -1073743528
> &a[7] = -1073743524
> &a[8] = -1073743520
> &a[9] = -1073743516 and ends with 3552
>
> where the numbers located on the physical drive relative to each other?

--
Jack Klein
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"Baloff" <> wrote in message news:...

> why is it that the lower index in an array occupies the highest
> number address. e.g.

....

> &a[0] = -1073743552 why not start 3516
> &a[1] = -1073743548
> &a[2] = -1073743544
> &a[3] = -1073743540
> &a[4] = -1073743536
> &a[5] = -1073743532
> &a[6] = -1073743528
> &a[7] = -1073743524
> &a[8] = -1073743520
> &a[9] = -1073743516 and ends with 3552

Since when is -1073743552 greater than -1073743516?

Andrew Koenig wrote:
> "Baloff" <> wrote:
>
>> why is it that the lower index in an array occupies the highest
>> number address. e.g.
>
> > &a[0] = -1073743552 why not start 3516
> > &a[9] = -1073743516 and ends with 3552
>
> Since when is -1073743552 greater than -1073743516?

I have absolutely no idea.

Baloff wrote:
> Hello
> why is it that the lower index in an array occupies the highest
> number address. e.g.
>
> #include <iostream>
> using namespace std;
>
> int main() {
> int a[10];
> cout << "sizeof(int) = "<< sizeof(int) << endl;
> for(int i = 0; i < 10; i++)
> cout << "&a[" << i << "] = "
> << (long)&a[i] << endl;
ITYM

<< &a[i] << endl;

Or the not-quite-right:

<< (unsigned long)&a[i] << endl;

> }
>
> sizeof(int) = 4
> &a[0] = -1073743552 why not start 3516
> &a[1] = -1073743548
> &a[2] = -1073743544
> &a[3] = -1073743540
> &a[4] = -1073743536
> &a[5] = -1073743532
> &a[6] = -1073743528
> &a[7] = -1073743524
> &a[8] = -1073743520
> &a[9] = -1073743516 and ends with 3552
>
> where the numbers located on the physical drive relative to each other?
>
`Physical drive'? What's *that*?

HTH,
--ag


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