make MeasurementsStatistics a readonly ref struct (#1503)

Force `MeasurementsStatistics` to never allocate on the heap
dotnet · Aug 12, 2020 · 92474e8 · 92474e8
1 parent eb20d3e
commit 92474e8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/BenchmarkDotNet/Mathematics/MeasurementsStatistics.cs b/src/BenchmarkDotNet/Mathematics/MeasurementsStatistics.cs
@@ -10,7 +10,7 @@ namespace BenchmarkDotNet.Mathematics
     /// <summary>
     /// the goal of this struct is to avoid any heap allocations, please keep it in mind
     /// </summary>
-    internal struct MeasurementsStatistics
+    internal readonly ref struct MeasurementsStatistics
     {
         /// <summary>
         /// Standard error in nanoseconds.