public Arr <B> Map(Arr <A> ma, Func <A, B> f)
{
var bs = new B[ma.Count];
var iter = ma.GetEnumerator();
for (int i = 0; iter.MoveNext(); i++)
{
bs[i] = f(iter.Current);
}
return(bs);
}
public bool Equals(Arr <A> x, Arr <A> y)
{
if (x.Count != y.Count)
{
return(false);
}
var xiter = x.GetEnumerator();
var yiter = y.GetEnumerator();
while (xiter.MoveNext() && yiter.MoveNext())
{
if (!equals <EqA, A>(xiter.Current, yiter.Current))
{
return(false);
}
}
return(true);
}
public int Compare(Arr <A> mx, Arr <A> my)
{
var cmp = mx.Count.CompareTo(my.Count);
if (cmp == 0)
{
var xiter = mx.GetEnumerator();
var yiter = my.GetEnumerator();
while (xiter.MoveNext() && yiter.MoveNext())
{
cmp = default(OrdA).Compare(xiter.Current, yiter.Current);
if (cmp != 0)
{
return(cmp);
}
}
return(0);
}
else
{
return(cmp);
}
}
public IEnumerator GetEnumerator()
{
return(Arr.GetEnumerator());
}
public IEnumerator <T> GetEnumerator() => Arr.GetEnumerator();