calib3d: fix warning from gcc7

e0ff5106 · Vladislav Sovrasov · sovrasov · ef7833a2 · e0ff5106
Commit e0ff5106 authored Aug 25, 2017 by Vladislav Sovrasov Committed by sovrasov Aug 25, 2017
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solvepnp.cpp modules/calib3d/src/solvepnp.cpp +1 -1

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--- a/modules/calib3d/src/solvepnp.cpp
+++ b/modules/calib3d/src/solvepnp.cpp
@@ -137,7 +137,7 @@ bool solvePnP( InputArray _opoints, InputArray _ipoints,
        CvMat c_cameraMatrix = cameraMatrix, c_distCoeffs = distCoeffs;
        CvMat c_rvec = rvec, c_tvec = tvec;
        cvFindExtrinsicCameraParams2(&c_objectPoints, &c_imagePoints, &c_cameraMatrix,
-                                     c_distCoeffs.rows*c_distCoeffs.cols ? &c_distCoeffs : 0,
+                                     (c_distCoeffs.rows && c_distCoeffs.cols) ? &c_distCoeffs : 0,
                                     &c_rvec, &c_tvec, useExtrinsicGuess );
        result = true;
    }