void unpack_check <S, T>()
where S : unmanaged
where T : unmanaged
{
for (var j = 0; j < SampleSize; j++)
{
var src = Random.Next <S>();
Span <T> dst = stackalloc T[bitsize <S>()];
gbits.unpack(src, dst);
var bs = BitString.FromScalar(src);
for (var i = 0; i < bs.Length; i++)
{
var expect = bs[i] ? one <T>() : zero <T>();
var actual = dst[i];
Claim.eq(expect, actual);
}
}
var x = Random.Span <S>(SampleSize);
Span <T> y1 = new T[x.Length * bitsize <S>()];
gbits.unpack(x, y1);
var y2 = BitString.FromScalars(x);
for (var i = 0; i < y1.Length; i++)
{
var expect = y2[i] ? one <T>() : zero <T>();
var actual = y1[i];
Claim.yea(gmath.eq(expect, actual));
}
}