From 1cb3447236d4a6fe8857d3bc97eb9418491951e7 Mon Sep 17 00:00:00 2001
From: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Sat, 9 Sep 2017 12:10:49 +0200
Subject: [PATCH] Adjust @safe-ty of 64-bit real unittest.

---
 std/conv.d | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/std/conv.d b/std/conv.d
index 1869f0508e8..e2cba07744f 100644
--- a/std/conv.d
+++ b/std/conv.d
@@ -3154,9 +3154,10 @@ if (isInputRange!Source && isSomeChar!(ElementType!Source) && !is(Source == enum
     assert(to!string(r) == to!string(real.max));
 }
 
-//Tests for the double implementation
-@safe unittest
+// Tests for the double implementation
+@system unittest
 {
+    // @system because strtod is not @safe.
     static if (real.mant_dig == 53)
     {
         import core.stdc.stdlib, std.exception, std.math;