Changeset 14850 for stable

Timestamp:

04/11/17 17:28:08 (8 years ago)

Author:

mkommend

Message:

#2746: Merged r14750, r14769 into stable.

Location:

stable

Files:

• . (modified) (1 prop)
• HeuristicLab.Common/3.3/EnumerableExtensions.cs (modified) (2 diffs)

stable/HeuristicLab.Common/3.3/EnumerableExtensions.cs

@@ -120 +120 @@
 
       for (int i = 0; i < length; ++i) {
-        yield return range.Select(x => elements[x]);
+        yield return range.Select(x => elements[x]).ToArray();
 
         if (i == length - 1) break;
@@ -150 +150 @@
       if (k > n - k)
         k = n - k;
-      long r = 1;
-      for (long d = 1; d <= k; d++) {
-        r *= n--;
-        r /= d;
+
+      // enable explicit overflow checking for very large coefficients
+      checked {
+        long r = 1;
+        for (long d = 1; d <= k; d++) {
+          r *= n--;
+          r /= d;
+        }
+        return r;
       }
-      return r;
     }
   }