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22 lines
459 B
C
22 lines
459 B
C
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#pragma once
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#include <map>
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namespace vcpkg
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{
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template<class Key, class Value>
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struct Cache
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{
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template<class F>
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Value const& get_lazy(const Key& k, const F& f) const
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{
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auto it = m_cache.find(k);
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if (it != m_cache.end()) return it->second;
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return m_cache.emplace(k, f()).first->second;
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}
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private:
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mutable std::map<Key, Value> m_cache;
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};
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}
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