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author | Alexander Fokin <apfokin@gmail.com> | 2022-02-10 16:45:38 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:38 +0300 |
commit | 863a59a65247c24db7cb06789bc5cf79d04da32f (patch) | |
tree | 139dc000c8cd4a40f5659e421b7c75135d080307 /util/generic/mapfindptr.h | |
parent | f64e95a9eb9ab03240599eb9581c5a9102426a96 (diff) | |
download | ydb-863a59a65247c24db7cb06789bc5cf79d04da32f.tar.gz |
Restoring authorship annotation for Alexander Fokin <apfokin@gmail.com>. Commit 1 of 2.
Diffstat (limited to 'util/generic/mapfindptr.h')
-rw-r--r-- | util/generic/mapfindptr.h | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/util/generic/mapfindptr.h b/util/generic/mapfindptr.h index bc10cac60f..b44585af48 100644 --- a/util/generic/mapfindptr.h +++ b/util/generic/mapfindptr.h @@ -1,7 +1,7 @@ #pragma once -#include <type_traits> - +#include <type_traits> + /** MapFindPtr usage: if (T* value = MapFindPtr(myMap, someKey) { @@ -11,50 +11,50 @@ if (T* value = MapFindPtr(myMap, someKey) { */ template <class Map, class K> -inline auto MapFindPtr(Map& map, const K& key) { +inline auto MapFindPtr(Map& map, const K& key) { auto i = map.find(key); return (i == map.end() ? nullptr : &i->second); } template <class Map, class K> -inline auto MapFindPtr(const Map& map, const K& key) { +inline auto MapFindPtr(const Map& map, const K& key) { auto i = map.find(key); return (i == map.end() ? nullptr : &i->second); } /** helper for THashMap/TMap */ -template <class Derived> +template <class Derived> struct TMapOps { template <class K> - inline auto FindPtr(const K& key) { + inline auto FindPtr(const K& key) { return MapFindPtr(static_cast<Derived&>(*this), key); } template <class K> - inline auto FindPtr(const K& key) const { + inline auto FindPtr(const K& key) const { return MapFindPtr(static_cast<const Derived&>(*this), key); } - template <class K, class DefaultValue> - inline auto Value(const K& key, const DefaultValue& defaultValue) const -> std::remove_reference_t<decltype(*this->FindPtr(key))> { - if (auto found = FindPtr(key)) { + template <class K, class DefaultValue> + inline auto Value(const K& key, const DefaultValue& defaultValue) const -> std::remove_reference_t<decltype(*this->FindPtr(key))> { + if (auto found = FindPtr(key)) { return *found; } - return defaultValue; + return defaultValue; } - - template <class K, class V> - inline const V& ValueRef(const K& key, V& defaultValue) const { - static_assert(std::is_same<std::remove_const_t<V>, typename Derived::mapped_type>::value, "Passed default value must have the same type as the underlying map's mapped_type."); - - if (auto found = FindPtr(key)) { - return *found; - } - return defaultValue; - } - - template <class K, class V> - inline const V& ValueRef(const K& key, V&& defaultValue) const = delete; + + template <class K, class V> + inline const V& ValueRef(const K& key, V& defaultValue) const { + static_assert(std::is_same<std::remove_const_t<V>, typename Derived::mapped_type>::value, "Passed default value must have the same type as the underlying map's mapped_type."); + + if (auto found = FindPtr(key)) { + return *found; + } + return defaultValue; + } + + template <class K, class V> + inline const V& ValueRef(const K& key, V&& defaultValue) const = delete; }; |