public bool SequenceEqual(RepeatEnumerable <int> second, IEqualityComparer <int> comparer)
{
if (IsDefaultValue())
{
throw CommonImplementation.Uninitialized("first");
}
if (second.IsDefaultValue())
{
throw CommonImplementation.Uninitialized(nameof(second));
}
if (this.InnerCount == 0 && second.InnerCount == 0)
{
return(true);
}
if (this.InnerCount > 1 || second.InnerCount > 1)
{
return(false);
}
// must be exactly one now item
comparer = comparer ?? EqualityComparer <int> .Default;
// only equal sequences if their single element is equal
return(comparer.Equals(this.Start, second.Item));
}
public bool SequenceEqual(RepeatEnumerable <TItem> second, IEqualityComparer <TItem> comparer)
{
if (IsDefaultValue())
{
throw CommonImplementation.Uninitialized("first");
}
if (second.IsDefaultValue())
{
throw CommonImplementation.Uninitialized(nameof(second));
}
return(second.InnerCount == 0);
}
public bool SequenceEqual(RepeatEnumerable <TItem> second)
{
if (IsDefaultValue())
{
throw CommonImplementation.Uninitialized("first");
}
if (second.IsDefaultValue())
{
throw CommonImplementation.Uninitialized(nameof(second));
}
if (second.InnerCount != 1)
{
return(false);
}
return(EqualityComparer <TItem> .Default.Equals(default(TItem), second.Item));
}
public bool SequenceEqual(RepeatEnumerable <TItem> second, IEqualityComparer <TItem> comparer)
{
if (IsDefaultValue())
{
throw CommonImplementation.Uninitialized("first");
}
if (second.IsDefaultValue())
{
throw CommonImplementation.Uninitialized(nameof(second));
}
if (InnerCount != second.InnerCount)
{
return(false);
}
comparer = comparer ?? EqualityComparer <TItem> .Default;
return(comparer.Equals(Item, second.Item));
}