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-rw-r--r--src/util.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/util.h b/src/util.h
index fab93c1c2..e0dfd7b20 100644
--- a/src/util.h
+++ b/src/util.h
@@ -2,6 +2,8 @@
#define INCLUDE_util_h__
#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
+#define bitsizeof(x) (CHAR_BIT * sizeof(x))
+#define MSB(x, bits) ((x) & (~0ULL << (bitsizeof(x) - (bits))))
/*
* Don't wrap malloc/calloc.