Re: Idiomatic way to generate all possible values a static array of ubyte can have

[jkpl via Digitalmars-d-learn]

On Saturday, 2 April 2016 at 09:11:34 UTC, jkpl wrote:

On Saturday, 2 April 2016 at 08:48:10 UTC, rikki cattermole wrote:

On 02/04/2016 9:36 PM, jkpl wrote:

On Saturday, 2 April 2016 at 08:27:07 UTC, rikki cattermole wrote:

Okay that is a problem then.

Yes clearly!

Maybe this, a bit better:


    foreach (b0; randomCover(iota(0,256)))
    foreach (b1; randomCover(iota(0,256)))
    ...
    foreach (b255; randomCover(iota(0,256)))
    {
        ...
    }

Still not the right approach,


import std.stdio;
import std.random;
import std.range;

void testRunner(bool function(ubyte[128]) test)
{
    uint[32] arr;

    foreach (v0;  randomCover(iota(0U,uint.max)))
    foreach (v1;  randomCover(iota(0U,uint.max)))
    foreach (v2;  randomCover(iota(0U,uint.max)))
    foreach (v3;  randomCover(iota(0U,uint.max)))
    foreach (v4;  randomCover(iota(0U,uint.max)))
    foreach (v5;  randomCover(iota(0U,uint.max)))
    foreach (v6;  randomCover(iota(0U,uint.max)))
    foreach (v7;  randomCover(iota(0U,uint.max)))
    foreach (v8;  randomCover(iota(0U,uint.max)))
    foreach (v9;  randomCover(iota(0U,uint.max)))
    foreach (v10; randomCover(iota(0U,uint.max)))
    foreach (v11; randomCover(iota(0U,uint.max)))
    foreach (v12; randomCover(iota(0U,uint.max)))
    foreach (v13; randomCover(iota(0U,uint.max)))
    foreach (v14; randomCover(iota(0U,uint.max)))
    foreach (v15; randomCover(iota(0U,uint.max)))
    foreach (v16; randomCover(iota(0U,uint.max)))
    foreach (v17; randomCover(iota(0U,uint.max)))
    foreach (v18; randomCover(iota(0U,uint.max)))
    foreach (v19; randomCover(iota(0U,uint.max)))
    foreach (v20; randomCover(iota(0U,uint.max)))
    foreach (v21; randomCover(iota(0U,uint.max)))
    foreach (v22; randomCover(iota(0U,uint.max)))
    foreach (v23; randomCover(iota(0U,uint.max)))
    foreach (v24; randomCover(iota(0U,uint.max)))
    foreach (v25; randomCover(iota(0U,uint.max)))
    foreach (v26; randomCover(iota(0U,uint.max)))
    foreach (v27; randomCover(iota(0U,uint.max)))
    foreach (v28; randomCover(iota(0U,uint.max)))
    foreach (v29; randomCover(iota(0U,uint.max)))
    foreach (v30; randomCover(iota(0U,uint.max)))
    foreach (v31; randomCover(iota(0U,uint.max)))
    {
        arr = [v0,v1,v2,v3,v4,v5,v6,v7,v8,v9,
               v10,v11,v12,v13,v14,v15,v16,v17,v18,v19,
               v20,v21,v22,v23,v24,v25,v26,v27,v28,v29,
               v30, v31
        ];

        writeln(arr);

        //if (test(cast(ubyte[128]) arr))
            return;
    }
}

bool test(ubyte[128] arr)
{
    if (arr[0] == 0U)
        return true;
    else
        return false;
}

void main()
{
    testRunner(&test);
}