Merge pull request #7210 from mshabunin:fix-warnings

modules/core/include/opencv2/core/utility.hpp

@@ -1126,7 +1126,7 @@ CV_EXPORTS InstrNode* getTrace();
 CV_EXPORTS void       resetTrace();
 CV_EXPORTS void       setFlags(int modeFlags);
 CV_EXPORTS int        getFlags();
-};
+}
 
 } //namespace cv
 

modules/core/perf/perf_umat.cpp

@@ -13,7 +13,6 @@ using namespace ::testing;
 using std::tr1::tuple;
 using std::tr1::get;
 
-namespace {
 
 struct OpenCLState
 {
@@ -64,5 +63,3 @@ OCL_PERF_TEST_P(UMatTest, CustomPtr, Combine(Values(sz1080p, sz2160p), Bool(), :
 
     SANITY_CHECK_NOTHING();
 }
-
-} // namespace cvtest

modules/core/test/test_ds.cpp

@@ -56,7 +56,7 @@ static void cvTsSimpleSeqShiftAndCopy( CvTsSimpleSeq* seq, int from_idx, int to_
                 (seq->count - from_idx)*elem_size );
     }
     seq->count += to_idx - from_idx;
-    if( elem && to_idx > from_idx )
+    if( elem )
         memcpy( seq->array + from_idx*elem_size, elem, (to_idx - from_idx)*elem_size );
 }