minor fix

modules/gpu/src/cuda/matrix_operations.cu

@@ -49,7 +49,7 @@
 using namespace cv::gpu;
 using namespace cv::gpu::impl;
 
-__constant__ __align__(16) double scalar_d[4];
+__constant__ double scalar_d[4];
 
 namespace mat_operators
 {
@@ -267,7 +267,7 @@ namespace cv
 
                             CopyToFunc func = tab[depth];
 
-                            if (func == 0) error("Operation \'ConvertTo\' doesn't supported on your GPU model", __FILE__, __LINE__);
+                            if (func == 0) cv::gpu::error("Unsupported convert operation", __FILE__, __LINE__);
 
                             func(mat_src, mat_dst, mask, channels);
                         }
@@ -321,7 +321,7 @@ namespace cv
 
                             SetToFunc_without_mask func = tab[depth];
 
-                            if (func == 0) error("Operation \'ConvertTo\' doesn't supported on your GPU model", __FILE__, __LINE__);
+                            if (func == 0) cv::gpu::error("Unsupported convert operation", __FILE__, __LINE__);
 
                             func(mat, channels);
                         }
@@ -350,7 +350,7 @@ namespace cv
 
                             SetToFunc_with_mask func = tab[depth];
 
-                            if (func == 0) error("Operation \'ConvertTo\' doesn't supported on your GPU model", __FILE__, __LINE__);
+                            if (func == 0) cv::gpu::error("Unsupported convert operation", __FILE__, __LINE__);
 
                             func(mat, mask, channels);
                         }
@@ -410,4 +410,4 @@ namespace cv
 					}
 				} // namespace impl
 	    } // namespace gpu
-} // namespace cv
+    } // namespace cv