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While heterogeneous lookup in ordered containers has been available since C++14, we only got heterogeneous lookup for unordered containers in C++20. To enable heterogeneous lookup, the container must be instantiated with a hasher and an equality comparator that support all types we want to use for lookup. Compiler Explorer link: https://lnkd.in/dsj9EgDg #cpp #cplusplus #coding #programming #dailybiteofcpp
