[System.Core] Don't auto increment when trimming hashset. Fixes #18687

[mono.git] / mcs / class / System.Core / System.Collections.Generic / HashSet.cs

diff --git a/mcs/class/System.Core/System.Collections.Generic/HashSet.cs b/mcs/class/System.Core/System.Collections.Generic/HashSet.cs
index 9f335aea547160e27adf00924e7162f7da495adb..a146fd9002379272a51617de921f214143b5714f 100644 (file)
--- a/mcs/class/System.Core/System.Collections.Generic/HashSet.cs
+++ b/mcs/class/System.Core/System.Collections.Generic/HashSet.cs
@@ -199,9 +199,9 @@ namespace System.Collections.Generic {
                        }
                }
 
-               void Resize ()
+               void Resize (int size)
                {
-                       int newSize = HashPrimeNumbers.ToPrime ((table.Length << 1) | 1);
+                       int newSize = HashPrimeNumbers.ToPrime (size);
 
                        // allocate new hash table and link slots array
                        var newTable = new int [newSize];
@@ -250,7 +250,7 @@ namespace System.Collections.Generic {
                                return false;
 
                        if (++count > threshold) {
-                               Resize ();
+                               Resize ((table.Length << 1) | 1);
                                index = (hashCode & int.MaxValue) % table.Length;
                        }
 
@@ -371,7 +371,7 @@ namespace System.Collections.Generic {
 
                public void TrimExcess ()
                {
-                       Resize ();
+                       Resize (count);
                }
 
                // set operations