From 093e916151f8728071d97fb91c4e87c99a6b6c5e Mon Sep 17 00:00:00 2001
From: MITSUNARI Shigeo <herumi@nifty.com>
Date: Fri, 7 May 2021 17:39:20 +0900
Subject: [PATCH] fix for (bitlen(p) + 1) % 64 = 0

---
 include/mcl/gmp_util.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/mcl/gmp_util.hpp b/include/mcl/gmp_util.hpp
index e444993..4111c37 100644
--- a/include/mcl/gmp_util.hpp
+++ b/include/mcl/gmp_util.hpp
@@ -960,6 +960,7 @@ struct SmallModp {
 	}
 	uint32_t getTop(const Unit *x) const
 	{
+		if (shiftR_ == 0) return x[N_ - 1];
 		return (x[N_ - 1] >> shiftR_) | (x[N_] << shiftL_);
 	}
 	uint32_t cvtInt(const mpz_class& x) const