static public int[] GetStartingIndex(this IArrayDefinition array)
{
var indexes = new int[array.Rank];
array.GetStartingIndex(indexes);
return(indexes);
}
static public bool IndexesIntersects(this IArrayDefinition first, IArrayDefinition second, out IArrayDefinition intersection)
{
int[] minimums = first.GetStartingIndex().Zip(second.GetStartingIndex(), Math.Max).ToArray();
int[] maximums = first.GetEndingIndex().Zip(second.GetEndingIndex(), Math.Min).ToArray();
if (Enumerable.Range(0, first.Rank).Any(x => minimums[x] > maximums[x]))
{
intersection = new IndexRange();
return(false);
}
intersection = new IndexRange(minimums, maximums.Zip(minimums, (x, y) => x - y + 1).ToArray());
return(true);
}
static public void GetResetIndex(this IArrayDefinition array, int[] indexes)
{
array.GetStartingIndex(indexes);
indexes[array.Rank - 1]--;
}
static public int[] GetResetIndex(this IArrayDefinition array)
{
int[] indexes = array.GetStartingIndex();
indexes[array.Rank - 1]--;
return(indexes);
}
