commit get_gradient_points: rephrase an open coded 'hypot'

diff --git a/lib/common/utils.c b/lib/common/utils.c
index 310f4988f61e9f82a3f3b7cd9974c5aa46087934..85870bbfa3c2b7fdc9b54a9c9779ae05ecf7e549 100644 (file)
--- a/lib/common/utils.c
+++ b/lib/common/utils.c
@@ -1773,8 +1773,7 @@ void get_gradient_points(pointf *A, pointf *G, int n, double angle, int flags) {
       center.y = min.y + (max.y - min.y)/2;
     if (isRadial) {
        double inner_r, outer_r;
-       outer_r = sqrt((center.x - min.x)*(center.x - min.x) +
-                     (center.y - min.y)*(center.y - min.y));
+       outer_r = hypot(center.x - min.x, center.y - min.y);
        inner_r = outer_r /4.;
        if (isRHS) {
            G[0].y = center.y;