Index: modules/core/include/opencv2/core/operations.hpp
===================================================================
--- modules/core/include/opencv2/core/operations.hpp	(revision 7013)
+++ modules/core/include/opencv2/core/operations.hpp	(working copy)
@@ -820,7 +820,7 @@
     else
     {
         Mat A(*this, false), B(b, false);
-        ok = (0.0 == invert(A, B, method));
+        ok = (bool)invert(A, B, method);
     }
     return ok ? b : Matx<_Tp, n, m>::zeros();
 }