Fastest Way to Append Multiple Elements to an Array
anonymous via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Sun Dec 14 16:18:27 PST 2014
On Sunday, 14 December 2014 at 23:52:15 UTC, zeljkog wrote:
> On 15.12.14 00:16, "Nordlöw" wrote:
>> or some other trick?
>
> void append(T, Args...)(ref T[] arr, Args args){
> arr.length += args.length;
> foreach(i, e; args)
> arr[$ - args.length + i] = args[i];
> }
>
>
> void main()
> {
> int[] arr = [1, 2, 3, 4, 5];
> arr.append(3, 10, 14);
> writeln(arr);
> }
>
> output:
> [1, 2, 3, 4, 5, 3, 10, 14]
Maybe *std.array.Appender* should be used in append().
(http://dlang.org/phobos/std_array.html#.Appender)
Even if i often myself feel too lazy to use it and use only the
concat. op instead.
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