about array setting

[Chris Nicholson-Sauls]

dfun wrote:
> about array setting
> on this page http://www.digitalmars.com/d/arrays.html
> give an example
> 
> int[3] s;
> int* p;
> s[] = 3;		// same as s[0] = 3, s[1] = 3, s[2] = 3
> p[0..2] = 3;		// same as p[0] = 3, p[1] = 3
> 
> pring error => Error: Access Violation
> why?
> use dmd 1.0

Because 'p' doesn't actually point to anything.  It is an incomplete example (one which 
assumes users will fill in the details).  Try something like the following:

<code>
int[3] s ;
int*   p ;

s[] = 3; // same as s[0] = 3, s[1] = 3, s[2] = 3
p = s.ptr;
p[0 .. 2] = 1; // same as p[0] = 1, p[1] = 1
                // and, in this case, s[0] = 1, s[1] = 1
</code>

-- Chris Nicholson-Sauls