doc: remove outdated comment

No longer relevant because Boost 1.46 is no longer supported and
std::unordered_map is used instead of boost::unordered_map in CCoinsMap.
This commit is contained in:
Martin Zumsande 2021-08-22 17:32:43 +02:00
parent 16652a93ea
commit 4c69571e6e

View file

@ -33,10 +33,6 @@ public:
SaltedOutpointHasher();
/**
* 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).
*
* Having the hash noexcept allows libstdc++'s unordered_map to recalculate
* the hash during rehash, so it does not have to cache the value. This
* reduces node's memory by sizeof(size_t). The required recalculation has