public void Test_ParallelHelper_ForEach_Ref2D(
int sizeY,
int sizeX,
int row,
int column,
int height,
int width)
{
int[,]
data = CreateRandomData2D(sizeY, sizeX),
copy = (int[, ])data.Clone();
// Prepare the target data iteratively
foreach (ref int n in copy.AsSpan2D(row, column, height, width))
{
n = unchecked (n * 397);
}
Memory2D <int> memory = data.AsMemory2D(row, column, height, width);
Assert.AreEqual(memory.Length, height * width);
Assert.AreEqual(memory.Height, height);
Assert.AreEqual(memory.Width, width);
// Do the same computation in paralellel, then compare the two arrays
ParallelHelper.ForEach(memory, new Multiplier(397));
CollectionAssert.AreEqual(data, copy);
}
static Triangle[] AsTriangles(int[,] grid)
{
var span = grid.AsSpan2D();
var list = new List <Triangle>(span.Height);
for (var i = 0; i < span.Height; i++)
{
var row = span.GetRowSpan(i);
list.Add(new(
row[0],
row[1],
row[2]));
}
return(list.ToArray());
}