diff options
| author | Alejandro Sior <aho@sior.be> | 2022-07-29 10:44:07 +0200 |
|---|---|---|
| committer | Alejandro Sior <aho@sior.be> | 2022-07-29 10:44:07 +0200 |
| commit | aab012d713e801891aa11b6654bb9128da89d20f (patch) | |
| tree | 0ddce08d5ae9401ed7dd00b54892ebaf646fc03f /rt | |
| parent | 3e88a00f88e39420c44fcdcea873c8b0c3f6f105 (diff) | |
rt/stddef.h: add the LOWER macro
Diffstat (limited to 'rt')
| -rw-r--r-- | rt/stddef.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/rt/stddef.h b/rt/stddef.h index 83d9957..0064316 100644 --- a/rt/stddef.h +++ b/rt/stddef.h @@ -3,6 +3,10 @@ #define nil ((void*)0) +/* Generate a number with the x lowest bits set to 1 */ +#define LOWER(X) ((1 << (X)) - 1) + +/* Align a number to the upper boundary */ #define ALIGN_UP(X, F) ((X) - (X) % (F) + (F)) #endif
\ No newline at end of file |