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-rw-r--r--src/arith_uint256.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/arith_uint256.cpp b/src/arith_uint256.cpp
index 13fa176f8b..791dad7a60 100644
--- a/src/arith_uint256.cpp
+++ b/src/arith_uint256.cpp
@@ -176,7 +176,7 @@ unsigned int base_uint<BITS>::bits() const
for (int pos = WIDTH - 1; pos >= 0; pos--) {
if (pn[pos]) {
for (int nbits = 31; nbits > 0; nbits--) {
- if (pn[pos] & 1 << nbits)
+ if (pn[pos] & 1U << nbits)
return 32 * pos + nbits + 1;
}
return 32 * pos + 1;