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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 check_matching_dims("add", "m1", m1, "m2", m2);
30 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type,
31 R, C>
32 result(m1.rows(), m1.cols());
33 for (int i = 0; i < result.size(); ++i)
34 result(i) = m1(i) + m2(i);
35 return result;
36 }
37
47 template <typename T1, typename T2, int R, int C>
48 inline
49 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type, R, C>
50 add(const Eigen::Matrix<T1, R, C>& m,
51 const T2& c) {
52 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type,
53 R, C>
54 result(m.rows(), m.cols());
55 for (int i = 0; i < result.size(); ++i)
56 result(i) = m(i) + c;
57 return result;
58 }
59
69 template <typename T1, typename T2, int R, int C>
70 inline
71 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type, R, C>
72 add(const T1& c,
73 const Eigen::Matrix<T2, R, C>& m) {
74 Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type,
75 R, C>
76 result(m.rows(), m.cols());
77 for (int i = 0; i < result.size(); ++i)
78 result(i) = c + m(i);
79 return result;
80 }
81
82 }
83 }
84 #endif
check_matching_dims.hpp
stan
Definition: log_sum_exp.hpp:8
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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