mirror of https://github.com/bsnes-emu/bsnes.git
59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
#pragma once
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#include <nall/set.hpp>
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namespace nall {
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template<typename T, typename U> struct map {
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struct node_t {
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T key;
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U value;
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node_t() = default;
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node_t(const T& key) : key(key) {}
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node_t(const T& key, const U& value) : key(key), value(value) {}
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auto operator< (const node_t& source) const -> bool { return key < source.key; }
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auto operator==(const node_t& source) const -> bool { return key == source.key; }
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};
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auto find(const T& key) const -> maybe<U&> {
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if(auto node = root.find({key})) return node().value;
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return nothing;
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}
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auto insert(const T& key, const U& value) -> void { root.insert({key, value}); }
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auto remove(const T& key) -> void { root.remove({key}); }
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auto size() const -> unsigned { return root.size(); }
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auto reset() -> void { root.reset(); }
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auto begin() -> typename set<node_t>::iterator { return root.begin(); }
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auto end() -> typename set<node_t>::iterator { return root.end(); }
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auto begin() const -> const typename set<node_t>::iterator { return root.begin(); }
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auto end() const -> const typename set<node_t>::iterator { return root.end(); }
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protected:
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set<node_t> root;
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};
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template<typename T, typename U> struct bimap {
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auto find(const T& key) const -> maybe<U&> { return tmap.find(key); }
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auto find(const U& key) const -> maybe<T&> { return umap.find(key); }
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auto insert(const T& key, const U& value) -> void { tmap.insert(key, value); umap.insert(value, key); }
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auto remove(const T& key) -> void { if(auto p = tmap.find(key)) { umap.remove(p().value); tmap.remove(key); } }
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auto remove(const U& key) -> void { if(auto p = umap.find(key)) { tmap.remove(p().value); umap.remove(key); } }
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auto size() const -> unsigned { return tmap.size(); }
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auto reset() -> void { tmap.reset(); umap.reset(); }
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auto begin() -> typename set<typename map<T, U>::node_t>::iterator { return tmap.begin(); }
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auto end() -> typename set<typename map<T, U>::node_t>::iterator { return tmap.end(); }
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auto begin() const -> const typename set<typename map<T, U>::node_t>::iterator { return tmap.begin(); }
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auto end() const -> const typename set<typename map<T, U>::node_t>::iterator { return tmap.end(); }
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protected:
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map<T, U> tmap;
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map<U, T> umap;
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};
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}
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