Template Function Pennylane::Util::reverse_lookup

• Defined in File ConstantUtil.hpp

Function Documentation

template<typename Key, typename Value, std::size_t size>
constexpr auto Pennylane::Util::reverse_lookup(const std::array<std::pair<Key, Value>, size> &arr, const Value &value) -> Key

Reverse lookup value in array of pairs. For a constexpr map-like behavior.

Template Parameters

• Key – Type of keys

• Value – Type of values

• size – Size of std::array

Parameters

• arr – Array to lookup

• value – Value to find

api/function_ConstantUtil_8hpp_1a64a9b416ed7b5a3c8965422906adf165

 

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