dlang_book/book/05-данные-и-функции-функциональный-стиль/src/chapter-5-5/app.d

T1[] find(T1, T2)(T1[] longer, T2[] shorter)
    if (is(typeof(longer[0 .. 1] == shorter) : bool))
{
    while (longer.length >= shorter.length)
    {
        if (longer[0 .. shorter.length] == shorter)
        {
            break;
        }
        longer = longer[1 .. $];
    }
    return longer;
}

unittest
{
    double[] d1 = [ 6.0, 1.5, 2.25, 3 ];
    float[] d2 = [ 1.5, 2.25 ];
    assert(find(d1, d2) == d1[1 .. $]);
}