On Thursday, 20 January 2022 at 04:00:59 UTC, forkit wrote:
void makeUniqueIDs(ref uint[] arr, size_t sz)
{
...
}
arrg!
what was i thinking! ;-)
// ---
void makeUniqueIDs(ref uint[] arr, size_t sz)
{
arr.reserve(sz);
// id needs to be 9 digits, and needs to start with 999
int[] a = iota(999_000_000, 1_000_000_000).array;
// above will contain 1_000_000 records that we can choose
from.
int i = 0;
uint x;
while(i != sz)
{
x = cast(uint)a.choice(rnd);
// ensure every id added is unique.
if (!arr.canFind(x))
{
arr ~= x;
i++;
}
else
i--;
}
}
//------
