made ZSTD_isPower2() an inline function

2024-10-23 11:50:57 -07:00
parent a167571db5
commit 7bad787d8b
2 changed files with 8 additions and 4 deletions
@@ -278,7 +278,11 @@
 *  Alignment check
 *****************************************************************/

-#define ZSTD_IS_POWER_2(a) (((a) & ((a)-1)) == 0)
+/* @return 1 if @u is a 2^n value, 0 otherwise
+ * useful to check a value is valid for alignment restrictions */
+MEM_STATIC int ZSTD_isPower2(size_t u) {
+    return (u & (u-1)) == 0;
+}

 /* this test was initially positioned in mem.h,
 * but this file is removed (or replaced) for linux kernel