set default comparer when not provided for value types

justcoding121 · justcoding121 · commit 00733e100407 · 2019-01-23T21:54:04.000-05:00
diff --git a/src/Advanced.Algorithms/DataStructures/Tree/RedBlackTree.cs b/src/Advanced.Algorithms/DataStructures/Tree/RedBlackTree.cs
@@ -30,7 +30,7 @@ public RedBlackTree(bool enableNodeLookUp = false, IEqualityComparer<T> equality
                     throw new ArgumentException("equalityComparer parameter is required when node lookup us enabled and T is not a value type.");
                 }
 
-                NodeLookUp = new Dictionary<T, BSTNodeBase<T>>(equalityComparer);
+                NodeLookUp = new Dictionary<T, BSTNodeBase<T>>(equalityComparer ?? EqualityComparer<T>.Default);
             }
         }
 
@@ -58,7 +58,7 @@ public RedBlackTree(IEnumerable<T> sortedCollection, bool enableNodeLookUp = fal
                     throw new ArgumentException("equalityComparer parameter is required when node lookup us enabled and T is not a value type.");
                 }
 
-                NodeLookUp = nodes.ToDictionary(x => x.Value, x => x as BSTNodeBase<T>);
+                NodeLookUp = nodes.ToDictionary(x => x.Value, x => x as BSTNodeBase<T>, equalityComparer ?? EqualityComparer<T>.Default);
             }
         }
 

Original file line number	Diff line number	Diff line change
`@@ -30,7 +30,7 @@ public RedBlackTree(bool enableNodeLookUp = false, IEqualityComparer<T> equality`
`30`	`30`	`throw new ArgumentException("equalityComparer parameter is required when node lookup us enabled and T is not a value type.");`
`31`	`31`	`}`
`32`	`32`
`33`		`- NodeLookUp = new Dictionary<T, BSTNodeBase<T>>(equalityComparer);`
	`33`	`+ NodeLookUp = new Dictionary<T, BSTNodeBase<T>>(equalityComparer ?? EqualityComparer<T>.Default);`
`34`	`34`	`}`
`35`	`35`	`}`
`36`	`36`
`@@ -58,7 +58,7 @@ public RedBlackTree(IEnumerable<T> sortedCollection, bool enableNodeLookUp = fal`
`58`	`58`	`throw new ArgumentException("equalityComparer parameter is required when node lookup us enabled and T is not a value type.");`
`59`	`59`	`}`
`60`	`60`
`61`		`- NodeLookUp = nodes.ToDictionary(x => x.Value, x => x as BSTNodeBase<T>);`
	`61`	`+ NodeLookUp = nodes.ToDictionary(x => x.Value, x => x as BSTNodeBase<T>, equalityComparer ?? EqualityComparer<T>.Default);`
`62`	`62`	`}`
`63`	`63`	`}`
`64`	`64`