1 #ifndef STAN_MATH_PRIM_MAT_FUN_CSR_EXTRACT_U_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_CSR_EXTRACT_U_HPP
6 #include <Eigen/Sparse>
26 const std::vector<int>
28 std::vector<int> u(A.outerSize() + 1);
29 for (
int nze = 0; nze <= A.outerSize(); ++nze)
41 template <
typename T,
int R,
int C>
42 const std::vector<int>
44 Eigen::SparseMatrix<T, Eigen::RowMajor> B = A.sparseView();