macros: add align() macro

7 years ago · efa91ba5c3
parent c684a57e24
commit efa91ba5c3
1 changed files with 1 additions and 0 deletions
--- a/include/macros.h
+++ b/include/macros.h
@ -21,6 +21,7 @@
 #define ROUND_DOWN(x, k) ((x) & ~((k) - 1))
 #define ROUND_UP(x, k) (((x) + (k) - 1) & ~((k) - 1))

+#define align(x, k) ((x) & ~((1 << (k)) - 1))
 #define is_aligned(x, k) (!((x) & ((1 << (k)) - 1)))
 #define align_eq(x, y, k) (!(((x) ^ (y)) >> k))