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c# Programming Glossary: inequality

C# Binary Trees and Dictionaries

http://stackoverflow.com/questions/2151747/c-sharp-binary-trees-and-dictionaries

for very long strings. On the hand comparing strings for inequality almost always faster than hashing since it may require looking..

Why does >= return false when == returns true for null values?

http://stackoverflow.com/questions/4399932/why-does-return-false-when-returns-true-for-null-values

This makes nullable equality inconsistent with nullable inequality. None of these choices is obviously correct they all have pros..

Why must we define both == and != in C#?

http://stackoverflow.com/questions/6916884/why-must-we-define-both-and-in-c

where the equality operator is defined then the inequality operator is a copy paste with each and every comparison reversed.. allow the programmer to implement checks for equality and inequality however they like. Some of the answers point to cases where.. for F# and only overloads the equality operator not the inequality module Module1 type Foo let mutable myInternalValue 0 member..

Reference equality performance difference? ((object)obj1 == (object)obj2) vs. object.ReferenceEquals( obj1, obj2 )

http://stackoverflow.com/questions/735554/reference-equality-performance-difference-objectobj1-objectobj2-vs-ob

Even if the compiler balances out those methods what about inequality object obj null as compared to... object.ReferenceEquals obj.. seems clearer when checking equality but for inequality one might miss the preceding object.ReferenceEquals whereas..