public void Load1()
{
var x = Span128.Load(span <int>(1, 2, 3, 4, 5, 6, 7, 8));
Claim.eq(x.BlockCount, 2);
x.ClaimEqual(Span128.FromParts(1, 2, 3, 4, 5, 6, 7, 8));
}
public void BlockSlice()
{
var x = Span128.Load(span <int>(1, 2, 3, 4, 5, 6, 7, 8));
var block0 = x.SliceBlock(0);
Claim.eq(4, block0.Length);
block0.ClaimEqual(Span128.Load(span(1, 2, 3, 4)));
var block2 = x.SliceBlock(1);
Claim.eq(4, block2.Length);
block2.ClaimEqual(Span128.FromParts(5, 6, 7, 8));
}