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-rw-r--r--src/coins.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/coins.h b/src/coins.h
index 9f90fe6bd0..ff60288163 100644
--- a/src/coins.h
+++ b/src/coins.h
@@ -247,7 +247,10 @@ private:
public:
CCoinsKeyHasher();
- uint64_t operator()(const uint256& key) const {
+ // This *must* return size_t. With Boost 1.46 on 32-bit systems the
+ // unordered_map will behave unpredictably if the custom hasher returns a
+ // uint64_t, resulting in failures when syncing the chain (#4634).
+ size_t operator()(const uint256& key) const {
return key.GetHash(salt);
}
};