build: fix build error

8 years ago · 072956924b
parent 944d40a1b5
commit 072956924b
1 changed files with 1 additions and 1 deletions
--- a/modules/xfeatures2d/src/affine_feature2d.cpp
+++ b/modules/xfeatures2d/src/affine_feature2d.cpp
@ -211,7 +211,7 @@ bool calcAffineAdaptation(const Mat & fimage, Elliptic_KeyPoint & keypoint)
            float ratio = 1 - q;

            //if ratio == 1 means q == 0 and one axes equals to 0
-            if (!isnan(ratio) && ratio != 1)
+            if (!cvIsNaN(ratio) && ratio != 1)
            {
                //Update U matrix
                U = U * Mk;