fixed compile error on Windows

Vadim Pisarevsky · Vadim Pisarevsky · commit 53fdae93bdcc · 2012-09-07T15:25:32.000+04:00
diff --git a/samples/cpp/simpleflow_demo.cpp b/samples/cpp/simpleflow_demo.cpp
@@ -131,7 +131,7 @@ static bool readOpticalFlowFromFile(FILE* file, Mat& flow) {
 }
 
 static bool isFlowCorrect(float u) {
-  return !isnan(u) && (fabs(u) < 1e9);
+  return !cvIsNaN(u) && (fabs(u) < 1e9);
 }
 
 static float calc_rmse(Mat flow1, Mat flow2) {

Original file line number	Diff line number	Diff line change
`@@ -131,7 +131,7 @@ static bool readOpticalFlowFromFile(FILE* file, Mat& flow) {`
`131`	`131`	`}`
`132`	`132`
`133`	`133`	`static bool isFlowCorrect(float u) {`
`134`		`- return !isnan(u) && (fabs(u) < 1e9);`
	`134`	`+ return !cvIsNaN(u) && (fabs(u) < 1e9);`
`135`	`135`	`}`
`136`	`136`
`137`	`137`	`static float calc_rmse(Mat flow1, Mat flow2) {`