seeds sample: fix compiler warnings

bkueng · bkueng · commit 728b8253f8d7 · 2014-09-10T08:52:30.000+02:00
the exact warnings are:
/builds/precommit-contrib_macosx/opencv_contrib/modules/ximgproc/samples/seeds.cpp:32:6: warning: no previous prototype for function 'trackbarChanged' [-Wmissing-prototypes]
/builds/precommit-contrib_macosx/opencv_contrib/modules/ximgproc/samples/seeds.cpp:32:26: warning: unused parameter 'pos' [-Wunused-parameter]
/builds/precommit-contrib_macosx/opencv_contrib/modules/ximgproc/samples/seeds.cpp:32:37: warning: unused parameter 'data' [-Wunused-parameter]
diff --git a/modules/ximgproc/samples/seeds.cpp b/modules/ximgproc/samples/seeds.cpp
@@ -13,6 +13,8 @@ using namespace cv;
 using namespace cv::ximgproc;
 using namespace std;
 
+void trackbarChanged(int pos, void* data);
+
 static void help()
 {
     cout << "\nThis program demonstrates SEEDS superpixels using OpenCV class SuperpixelSEEDS\n"
@@ -29,7 +31,7 @@ static const char* window_name = "SEEDS Superpixels";
 
 static bool init = false;
 
-void trackbarChanged(int pos, void* data)
+void trackbarChanged(int, void*)
 {
     init = false;
 }

Original file line number	Diff line number	Diff line change
`@@ -13,6 +13,8 @@ using namespace cv;`
`13`	`13`	`using namespace cv::ximgproc;`
`14`	`14`	`using namespace std;`
`15`	`15`
	`16`	`+void trackbarChanged(int pos, void* data);`
	`17`	`+`
`16`	`18`	`static void help()`
`17`	`19`	`{`
`18`	`20`	`cout << "\nThis program demonstrates SEEDS superpixels using OpenCV class SuperpixelSEEDS\n"`
`@@ -29,7 +31,7 @@ static const char* window_name = "SEEDS Superpixels";`
`29`	`31`
`30`	`32`	`static bool init = false;`
`31`	`33`
`32`		`-void trackbarChanged(int pos, void* data)`
	`34`	`+void trackbarChanged(int, void*)`
`33`	`35`	`{`
`34`	`36`	`init = false;`
`35`	`37`	`}`