Template Function Pennylane::Util::static_lookup¶

Defined in File ConstantUtil.hpp

Function Documentation¶

template<auto op, class T, size_t size> constexpr auto Pennylane::Util::static_lookup(const std::array<std::pair<decltype(op), T>, size> &arr) -> T ¶

For lookup from any array of pair whose first elements are GateOperation.

As Util::lookup can be used in constexpr context, this function is redundant (by the standard). But GCC 9 still does not accept Util::lookup in constexpr some cases.

As we now move to GCC>=10, this function is deprecated.

api/function_ConstantUtil_8hpp_1a069de44b95505d0ae845465fe8893007

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Template Function Pennylane::Util::static_lookup¶

Function Documentation¶

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