Stan Math Library
4.9.0
Automatic Differentiation
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using stan::ref_type_if< Condition, T, require_all_t< is_eigen< T >, bool_constant<!is_arena_matrix< T >::value > > >::T_dec = std::decay_t<decltype(std::declval<T>().derived())> |
Definition at line 39 of file ref_type.hpp.