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This commit is contained in:
koe 2022-12-15 13:04:34 -06:00
parent acfaaeda7a
commit 3d60475753
1 changed files with 3 additions and 1 deletions
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4
src/common/container_helpers.h
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@ -54,7 +54,7 @@ struct equals_from_less final
template <typename T> template <typename T>
bool operator()(const T &a, const T &b) { return !(a < b) && !(b < a); } bool operator()(const T &a, const T &b) { return !(a < b) && !(b < a); }
}; };
/// note: uniqueness uses 'equals_from_less' to match the use of operator< when testing if sorted /// note: test for sorted and uniqueness using the same criteria (operator<)
template <typename T> template <typename T>
bool is_sorted_and_unique(const T& container) bool is_sorted_and_unique(const T& container)
{ {
@ -67,6 +67,8 @@ bool is_sorted_and_unique(const T& container)
return true; return true;
} }
/// convenience wrapper for checking if a mapped object is mapped to a key embedded in that object /// convenience wrapper for checking if a mapped object is mapped to a key embedded in that object
/// example: std::unorderd_map<rct::key, std::pair<rct::key, rct::xmr_amount>> where the map key is supposed to
/// reproduce the pair's rct::key; use the predicate to get the pair's rct::key element
template <typename KeyT, typename ValueT> template <typename KeyT, typename ValueT>
bool keys_match_internal_values(const std::unordered_map<KeyT, ValueT> &map, bool keys_match_internal_values(const std::unordered_map<KeyT, ValueT> &map,
const std::function< const std::function<