math.h: fix compilation error if not on GNU/Clang, fix builtin usage …

…condition
XPhyro · Aug 23, 2024 · 3ef8df6 · 3ef8df6
1 parent af39c0d
commit 3ef8df6
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/c/include/math.h b/src/c/include/math.h
@@ -10,11 +10,11 @@
 int popcountu(unsigned int x)
 {
     int popcount;
-    int i;
 
-#if !defined(__GNUC__) || !defined(__clang__)
+#if defined(__GNUC__) || defined(__clang__)
     popcount = __builtin_popcount(x & 0xff);
 #else
+    int i;
     for (i = 0, popcount = 0; i < sizeof(x) * 8; popcount += (x & (1 << i++)) >> 0) {}
 #endif