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add.hpp
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1 #ifndef STAN_MATH_PRIM_MAT_FUN_ADD_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_ADD_HPP
3
4 #include <boost/math/tools/promotion.hpp>
5 #include <stan/math/prim/mat/fun/Eigen.hpp>
6 #include <stan/math/prim/mat/err/check_matching_dims.hpp>
7
8 namespace stan {
9 namespace math {
10
24 template <typename T1, typename T2, int R, int C>
25 inline
26 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type, R, C>
27 add(const Eigen::Matrix<T1, R, C>& m1,
28 const Eigen::Matrix<T2, R, C>& m2) {
29 stan::math::check_matching_dims("add",
30 "m1", m1,
31 "m2", m2);
32 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type,
33 R, C>
34 result(m1.rows(), m1.cols());
35 for (int i = 0; i < result.size(); ++i)
36 result(i) = m1(i) + m2(i);
37 return result;
38 }
39
49 template <typename T1, typename T2, int R, int C>
50 inline
51 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type, R, C>
52 add(const Eigen::Matrix<T1, R, C>& m,
53 const T2& c) {
54 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type,
55 R, C>
56 result(m.rows(), m.cols());
57 for (int i = 0; i < result.size(); ++i)
58 result(i) = m(i) + c;
59 return result;
60 }
61
71 template <typename T1, typename T2, int R, int C>
72 inline
73 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type, R, C>
74 add(const T1& c,
75 const Eigen::Matrix<T2, R, C>& m) {
76 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type,
77 R, C>
78 result(m.rows(), m.cols());
79 for (int i = 0; i < result.size(); ++i)
80 result(i) = c + m(i);
81 return result;
82 }
83
84 }
85 }
86 #endif
check_matching_dims.hpp
stan::math::check_matching_dims
bool check_matching_dims(const char *function, const char *name1, const Eigen::Matrix< T1, R1, C1 > &y1, const char *name2, const Eigen::Matrix< T2, R2, C2 > &y2)
Return true if the two matrices are of the same size.
Definition: check_matching_dims.hpp:37
Eigen.hpp
stan::math::add
Eigen::Matrix< typename boost::math::tools::promote_args< T1, T2 >::type, R, C > add(const Eigen::Matrix< T1, R, C > &m1, const Eigen::Matrix< T2, R, C > &m2)
Return the sum of the specified matrices.
Definition: add.hpp:27

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