From 0d0a0c2f8aa1eb2dfce3830b931a18d14662c8aa Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Sat, 24 Oct 2015 16:03:28 +0200
Subject: timer: guard against overflow on win32

---
 opentrack-compat/timer.hpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/opentrack-compat/timer.hpp b/opentrack-compat/timer.hpp
index 1d424832..f0741295 100644
--- a/opentrack-compat/timer.hpp
+++ b/opentrack-compat/timer.hpp
@@ -24,9 +24,7 @@ static inline void opentrack_clock_gettime(int, struct timespec* ts)
 
     (void) QueryPerformanceCounter(&d);
 
-    long long part = d.QuadPart;
-    part *= 1000000000ULL;
-    part /= freq.QuadPart;
+    long long part = d.QuadPart / ((long double)freq.QuadPart) * 1000000000.L;
 
     ts->tv_sec = part / 1000000000ULL;
     ts->tv_nsec = part % 1000000000ULL;
-- 
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