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scalar_type_pre.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_META_SCALAR_TYPE_PRE_HPP
2 #define STAN_MATH_PRIM_SCAL_META_SCALAR_TYPE_PRE_HPP
3
4 #include <stan/math/prim/scal/meta/is_vector.hpp>
5 #include <stan/math/prim/scal/meta/value_type.hpp>
6
7 namespace stan {
8 namespace {
9 template <bool is_vec, typename T, typename T_container>
10 struct scalar_type_helper_pre {
11 typedef T_container type;
12 };
13
14 template <typename T, typename T_container>
15 struct scalar_type_helper_pre<true, T, T_container> {
16 typedef typename
17 scalar_type_helper_pre<is_vector<typename stan::math::value_type<T>::type>
18 ::value,
19 typename stan::math::value_type<T>::type,
20 typename
21 stan::math::value_type<T_container>::type>::type
22 type;
23 };
24 }
25
32 template <typename T>
33 struct scalar_type_pre {
34 typedef typename
35 scalar_type_helper_pre<is_vector
36 <typename stan::math::value_type<T>::type>::value,
37 typename stan::math::value_type<T>::type, T>::type
38 type;
39 };
40
41 }
42 #endif
43
stan::scalar_type_pre::type
scalar_type_helper_pre< is_vector< typename stan::math::value_type< T >::type >::value, typename stan::math::value_type< T >::type, T >::type type
Definition: scalar_type_pre.hpp:38
stan
Definition: log_sum_exp.hpp:8
is_vector.hpp
stan::is_vector
Definition: is_vector.hpp:10
value_type.hpp
stan::scalar_type_pre
Metaprogram structure to determine the type of first container of the base scalar type of a template ...
Definition: scalar_type_pre.hpp:33
stan::math::value_type
Primary template class for metaprogram to compute the type of values stored in a container.
Definition: value_type.hpp:18

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