public ComposedSet <T, TDB> TrimEnd(ComposedSet <T, TDB> cset)
{
if (EndsWith(cset))
{
var trimmed = new ComposedSet <T, TDB>(this);
trimmed.indices.RemoveRange(trimmed.indices.Count - cset.indices.Count, cset.indices.Count);
return(trimmed);
}
return(this);
}
public static bool IsNullOrEmpty(ComposedSet <T, TDB> cset)
{
if (cset == null)
{
return(true);
}
if (cset.indices.Count == 0)
{
return(true);
}
return(false);
}
public bool StartsWith(ComposedSet <T, TDB> a)
{
int length = indices.Count;
int alength = a.indices.Count;
if (alength > length)
{
return(false);
}
for (int i = 0; i < alength; ++i)
{
if (a.indices[i] != indices[i])
{
return(false);
}
}
return(true);
}
public bool EndsWith(ComposedSet <T, TDB> a)
{
int length = indices.Count;
int alength = a.indices.Count;
if (alength > length)
{
return(false);
}
if (alength == 0)
{
return(false);
}
for (int i = 0; i < alength; ++i)
{
if (a.indices[alength - i - 1] != indices[length - i - 1])
{
return(false);
}
}
return(true);
}
public ComposedSet(ComposedSet <T, TDB> cset)
{
indices = new List <int>(cset.indices);
}
