clarify #endif comment

diff --git a/include/caffe/util/math_functions.hpp b/include/caffe/util/math_functions.hpp
index 12823f8..d3ecf58 100644 (file)
--- a/include/caffe/util/math_functions.hpp
+++ b/include/caffe/util/math_functions.hpp
@@ -267,7 +267,7 @@ void caffe_gpu_##name<double>(const int n, const double* x, double* y) { \
       n, x, y); \
 }
 
-#endif  // CPU_ONLY
+#endif  // !CPU_ONLY
 
 }  // namespace caffe