public static bool AllConsecutiveElements <T>(this SCG.IEnumerable <T> enumerable, Func <T, T, bool> predicate)
{
#region Code Contracts
// Argument must be non-null
Requires(enumerable != null, ArgumentMustBeNonNull);
// Argument must be non-null
Requires(predicate != null, ArgumentMustBeNonNull);
#endregion
using (var enumerator = enumerable.GetEnumerator()) {
if (enumerator.MoveNext())
{
var previous = enumerator.Current;
while (enumerator.MoveNext())
{
var current = enumerator.Current;
if (!predicate(previous, current))
{
return(false);
}
previous = current;
}
}
}
return(true);
}
protected static int countItems(SCG.IEnumerable <T> items)
{
ICollectionValue <T> jtems = items as ICollectionValue <T>;
if (jtems != null)
{
return(jtems.Count);
}
int count = 0;
using (SCG.IEnumerator <T> e = items.GetEnumerator())
while (e.MoveNext())
{
count++;
}
return(count);
}
public override System.Collections.Generic.IEnumerator <T> GetEnumerator()
{
return(enumerable.GetEnumerator());
}
public override SCG.IEnumerator <T> GetEnumerator() => _enumerable.GetEnumerator();
public override SCG.IEnumerator <T> GetEnumerator()
{
return(_enumerable.GetEnumerator());
}
