Add missing include into the tests comparison helper

CLang may complain about not knowing what std::numeric_limits are
if <limits> is not included.

Change-Id: I74118c3f0082e22f634ae11bce542a0de709260b

diff --git a/src/programs/mdrun/tests/comparison_helpers.h b/src/programs/mdrun/tests/comparison_helpers.h
index d55c0a2274b812c7a1446b6b854fd867199fba90..4f91f91472d4366b0bc76f6a30a4f1e17f471d0e 100644 (file)
--- a/src/programs/mdrun/tests/comparison_helpers.h
+++ b/src/programs/mdrun/tests/comparison_helpers.h
@@ -43,6 +43,8 @@
 #ifndef GMX_PROGRAMS_MDRUN_TESTS_COMPARISON_HELPERS_H
 #define GMX_PROGRAMS_MDRUN_TESTS_COMPARISON_HELPERS_H
 
+#include <limits>
+
 namespace gmx
 {