select() [4/6]

template<typename T_true , typename T_false , typename ReturnT = promote_scalar_t<return_type_t<T_true, T_false>, plain_type_t<T_true>>, require_container_t< T_true > * = nullptr, require_stan_scalar_t< T_false > * = nullptr>

ReturnT stan::math::select ( const bool  c, const T_true &  y_true, const T_false &  y_false  )

inline

If first argument is true return the second argument, else return the third argument.

Overload for use when the 'true' return is a container and the 'false' return is a scalar

If chosen, the scalar is returned as a container of the same size and plain type as the provided argument. Consequently, any Eigen expressions are evaluated.

Template Parameters

T_true	A container of stan Scalar types
T_false	A stan Scalar type

Parameters

c	Boolean condition value.
y_true	Value to return if condition is true.
y_false	Value to return if condition is false.

Definition at line 83 of file select.hpp.