On Friday, 8 November 2024 at 23:27:40 UTC, Dom DiSc wrote:
I _very_ often use this pattern:
```d
fun(ref int[] a)
{
assert(a.length && a.length<=100);
int[100] b;
b[0 .. a.length-1] = a[];
b[a.length .. 100] = 5;
}
```
I consider this perfectly safe, but DScanner gives warnings for
this, no matter if a check is present or not.
What's the recommended fix for this? I have no idea what else
to use.
Why not use foreach in your code? Is there a specific reason for
this? If I'm not mistaken, this is what you want to do:
```d
import std.array, std.range, std.stdio;
void fun(size_t size, int padding = 42)(ref int[] arr)
{
assert(arr.length <= size, "Size Error!");
int[size] sarr = padding;
foreach(i, ref e; arr) sarr[i] = e;/*
sarr[0 .. arr.length+ 1] = arr[];
sarr[arr.length .. size] = padding;//*/
sarr.writefln!" %s";
}
void main()
{
int[] arr = iota(5).array;
arr.length.writeln(": ", arr);
arr.fun!10;
} /*
5: [0, 1, 2, 3, 4]
[0, 1, 2, 3, 4, 42, 42, 42, 42, 42]
//*/
```
SDB79
