Fix compiler warning.

diff --git a/settings.cpp b/settings.cpp
index 8d3b83c..973e6d6 100644 (file)
--- a/settings.cpp
+++ b/settings.cpp
@@ -122,7 +122,7 @@ int Settings::intervalIndex2Minutes (int index) const
 {
     int int2min[] = { -1, 1, 2, 5, 15, 30 };
 
-    if (index < 0 || sizeof (int2min) / sizeof (int2min[0]) <= index)
+    if (index < 0 || sizeof (int2min) / sizeof (int2min[0]) <= (unsigned int)index)
         return -1;
 
     return int2min[index];