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-rw-r--r--include/grpc/support/useful.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/grpc/support/useful.h b/include/grpc/support/useful.h
index 003e096cf9..9d8314e4be 100644
--- a/include/grpc/support/useful.h
+++ b/include/grpc/support/useful.h
@@ -74,4 +74,7 @@
#define GPR_ICMP(a, b) ((a) < (b) ? -1 : ((a) > (b) ? 1 : 0))
+#define GPR_HASH_POINTER(x, range) \
+ ((((size_t)x) >> 4) ^ (((size_t)x) >> 9) ^ (((size_t)x) >> 14)) % (range)
+
#endif /* GRPC_SUPPORT_USEFUL_H */