add braces

Co-authored-by: Andrew Murray <[email protected]>

Author: drhead

src/libImaging/Resample.c

@@ -82,33 +82,43 @@ lanczos_filter(double x) {
 static inline double
 mks_2013_filter(double x) {
     /* https://johncostella.com/magic/ */
-    if (x < 0.0)
+    if (x < 0) {
         x = -x;
-    if (x < 0.5)
-        return 17.0 / 16.0 - 7.0 / 4.0 * pow(x, 2.0);
-    if (x < 1.5)
+    }
+    if (x < 0.5) {
+        return 17.0 / 16.0 - 7.0 / 4.0 * pow(x, 2);
+    }
+    if (x < 1.5) {
         return (1.0 - x) * (7.0 / 4.0 - x);
-    if (x < 2.5)
-        return -1.0 / 8.0 * pow(x - 5.0 / 2.0, 2.0);
-    return (0.0);
+    }
+    if (x < 2.5) {
+        return -1.0 / 8.0 * pow(x - 5.0 / 2.0, 2);
+    }
+    return 0;
 }
 
 static inline double
 mks_2021_filter(double x) {
     /* https://johncostella.com/magic/ */
-    if (x < 0.0)
+    if (x < 0) {
         x = -x;
-    if (x < 0.5)
-        return 577.0 / 576.0 - 239.0 / 144.0 * pow(x, 2.0);
-    if (x < 1.5)
+    }
+    if (x < 0.5) {
+        return 577.0 / 576.0 - 239.0 / 144.0 * pow(x, 2);
+    }
+    if (x < 1.5) {
         return 35.0 / 36.0 * (x - 1.0) * (x - 239.0 / 140.0);
-    if (x < 2.5)
+    }
+    if (x < 2.5) {
         return 1.0 / 6.0 * (x - 2.0) * (65.0 / 24.0 - x);
-    if (x < 3.5)
+    }
+    if (x < 3.5) {
         return 1.0 / 36.0 * (x - 3.0) * (x - 15.0 / 4.0);
-    if (x < 4.5)
-        return -1.0 / 288.0 * pow(x - 9.0 / 2.0, 2.0);
-    return (0.0);
+    }
+    if (x < 4.5) {
+        return -1.0 / 288.0 * pow(x - 9.0 / 2.0, 2);
+    }
+    return 0;
 }
 
 static struct filter BOX = {box_filter, 0.5};