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-rw-r--r--lib/birdlib.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/birdlib.h b/lib/birdlib.h
index bb19df54..c82082c1 100644
--- a/lib/birdlib.h
+++ b/lib/birdlib.h
@@ -34,6 +34,7 @@
#define ABS(a) ((a)>=0 ? (a) : -(a))
#define DELTA(a,b) (((a)>=(b))?(a)-(b):(b)-(a))
#define ARRAY_SIZE(a) (sizeof(a)/sizeof(*(a)))
+#define BYTES(n) ((((uint) (n)) + 7) / 8)
#define CALL(fn, args...) ({ if (fn) fn(args); })
#define ADVANCE(w, r, l) ({ r -= l; w += l; })