Ayende @ Rahienhttp://ayende.comAyende @ RahienCopyright (C) Ayende Rahien 2004 - 2021 (c) 202660Josh commented on Dictionary<Enum,T> PuzzlerWell 1) you could forego the default comparison mechanism by supplying your own IComparer <t in the dictionary's constructor 2) It always bothered me that the CLR can't provide default implementations for IEquatable <t and GetHashCode() for value types based on its binary structure. >http://ayende.com/3885/dictionary-enum-t-puzzler#comment7http://ayende.com/3885/dictionary-enum-t-puzzler#comment7Sun, 22 Feb 2009 03:51:36 GMTfirefly commented on Dictionary<Enum,T> PuzzlerI am more interested on how to identify the bottleneck in the first place. http://ayende.com/3885/dictionary-enum-t-puzzler#comment6http://ayende.com/3885/dictionary-enum-t-puzzler#comment6Sun, 22 Feb 2009 01:44:12 GMTOmer Mor commented on Dictionary<Enum,T> PuzzlerSimone is right, and I'll update my article soon. The general solution is still valid: overcoming generics' shortcoming using dynamic code generation. Simone's idea is to use Expression Trees to generate the code instead of Lightweight Code Generation (DynamicMethod), which makes the code clearer (no need for IL). LCG is still useful when you can't use .Net 3.5 & C#3. Omer Mor http://ayende.com/3885/dictionary-enum-t-puzzler#comment5http://ayende.com/3885/dictionary-enum-t-puzzler#comment5Sat, 21 Feb 2009 20:41:17 GMTSimone commented on Dictionary<Enum,T> PuzzlerIt can be accomplished in 10 lines with C# 3.0, I posted a comment on the article, I think it's been updated. http://ayende.com/3885/dictionary-enum-t-puzzler#comment4http://ayende.com/3885/dictionary-enum-t-puzzler#comment4Sat, 21 Feb 2009 18:55:04 GMTGil Fink commented on Dictionary<Enum,T> PuzzlerThanks for sharing! http://ayende.com/3885/dictionary-enum-t-puzzler#comment3http://ayende.com/3885/dictionary-enum-t-puzzler#comment3Sat, 21 Feb 2009 10:47:09 GMTAyende Rahien commented on Dictionary<Enum,T> PuzzlerThe problem isn't with the number of elements, the problem is with the number of comparisions! http://ayende.com/3885/dictionary-enum-t-puzzler#comment2http://ayende.com/3885/dictionary-enum-t-puzzler#comment2Sat, 21 Feb 2009 06:03:43 GMTDmitry commented on Dictionary<Enum,T> PuzzlerIs this really an issue with a generic dictionary? How many values can an enum have in real life, 10-15? http://ayende.com/3885/dictionary-enum-t-puzzler#comment1http://ayende.com/3885/dictionary-enum-t-puzzler#comment1Sat, 21 Feb 2009 05:00:59 GMT