A Lap around the Comparers Library

The Comparers library has four main parts:

1. Comparer implementations. You can use the Compare/EqualityCompare and CompareSource/EqualityCompareSource classes to create comparer instances with a fluent API.
2. Extension methods for comparers. The ComparerExtensions and EqualityComparerExtensions classes provide extensions that can be used to modify any comparer (including custom or built-in comparers).
3. Assistance for a type defining its own default comparer.
4. Extension methods for LINQ to Objects/Rx/Ix. All operators that take a comparer get overloads that allow a fluent API syntax for defining a comparer right within the LINQ query.

Every full comparer provided by this library implements IFullComparer<T>, which derives from all four interfaces IComparer<T>, IComparer, IEqualityComparer<T>, and IEqualityComparer. Every equality comparer provided by this library implements IFullEqualityComparer<T>, which derives from both IEqualityComparer<T> and IEqualityComparer.

This means they can be used with any generic or non-generic container or algorithm. Also, all the comparers implement equality comparison as well, so they can be used with hash-based containers and algorithms.

Since the .NET Comparer<T>.Default type does not implement IEqualityComparer<T>, this library provides its own default comparer.