public static int BinarySearch <T, TComparer>(
this ReadOnlySpan <T> span, T value, TComparer comparer)
where TComparer : IComparer <T>
{
if (comparer == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.comparer);
}
var comparable = new SpanHelpers.ComparerComparable <T, TComparer>(
value, comparer);
return(BinarySearch(span, comparable));
}
public static int BinarySearch <T, TComparer>(
this ReadOnlySpan <T> span, T value, TComparer comparer)
where TComparer : IComparer <T>
{
if (comparer == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.comparer);
}
// TODO: Do we accept a null comparer and then revert to T as IComparable if possible??
// T:System.ArgumentException:
// comparer is null, and value is of a type that is not compatible with the elements
// of array.
// T:System.InvalidOperationException:
// comparer is null, and T does not implement the System.IComparable`1 generic interface
var comparable = new SpanHelpers.ComparerComparable <T, TComparer>(
value, comparer);
return(BinarySearch(span, comparable));
}