Deleting an element from an array

[Jarrett Billingsley]

On Tue, Feb 3, 2009 at 10:14 AM, Frank Benoit
<keinfarbton at googlemail.com> wrote:
>
> arr = arr[ 0 .. lowerBound ] ~ arr[ upperBound .. $ ];
>

That's simple enough, but inefficient.

Something like this:

import std.c.string; // or import tango.stdc.string;

T[] erase(T)(ref T[] arr, size_t idx)
{
    if(arr.length == 0)
        throw new Exception("FAILCOPTER");

    if(idx < arr.length - 1)
        memmove(&arr[idx], &arr[idx + 1], T.sizeof * (arr.length - idx - 1));

    arr.length = arr.length - 1;
    return arr;
}