fix bug #3552:

replace std::swap with own code

fix bug #3552:
replace std::swap with own code
150e522b · Vladislav Vinogradov · e0d991cf · 150e522b
Commit 150e522b authored Feb 16, 2014 by Vladislav Vinogradov
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canny.cu modules/gpu/src/cuda/canny.cu +4 -3

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--- a/modules/gpu/src/cuda/canny.cu
+++ b/modules/gpu/src/cuda/canny.cu
@@ -42,8 +42,6 @@

 #if !defined CUDA_DISABLER

-#include <utility>
-#include <algorithm>//std::swap
 #include "opencv2/gpu/device/common.hpp"
 #include "opencv2/gpu/device/emulation.hpp"
 #include "opencv2/gpu/device/transform.hpp"
@@ -463,7 +461,10 @@ namespace canny

            count = min(count, map.cols * map.rows);

-            std::swap(st1, st2);
+            //std::swap(st1, st2);
+            short2* tmp = st1;
+            st1 = st2;
+            st2 = tmp;
        }
    }
 }