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-rw-r--r--Hilbert/BigBitVec.hpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/Hilbert/BigBitVec.hpp b/Hilbert/BigBitVec.hpp
index 2bb6db7..9003124 100644
--- a/Hilbert/BigBitVec.hpp
+++ b/Hilbert/BigBitVec.hpp
@@ -24,6 +24,8 @@
#include <Hilbert/Common.hpp>
#include <Hilbert/FixBitVec.hpp>
+#include <cstring>
+
#define BBV_MIN(a,b) ((a)<(b)?(a):(b))
#define BBV_MAX(a,b) ((a)>(b)?(a):(b))
#define FBVS_NEEDED(b) ((BBV_MAX(b,1)+FBV_BITS-1)/FBV_BITS)