math/opencl_2prim_2sub__row_8hpp_source.html

#ifndef STAN_MATH_OPENCL_PRIM_SUB_ROW_HPP

#define STAN_MATH_OPENCL_PRIM_SUB_ROW_HPP

#ifdef STAN_OPENCL


#include <stan/math/opencl/matrix_cl.hpp>

#include <stan/math/opencl/prim/block.hpp>


namespace stan {

namespace math {


template <typename T_x,

          typename = require_nonscalar_prim_or_rev_kernel_expression_t<T_x>>

inline auto sub_row(T_x&& x, size_t i, size_t j, size_t ncols) {

  return block(std::forward<T_x>(x), i, j, 1, ncols);

}

}  // namespace math

}  // namespace stan

#endif

#endif

matrix_cl.hpp

stan::math::sub_row
auto sub_row(T_x &&x, size_t i, size_t j, size_t ncols)
Return a 1 x ncols subrow starting at (i-1, j-1).
Definition sub_row.hpp:23

stan::math::block
auto block(T_x &&x, size_t i, size_t j, size_t nrows, size_t ncols)
Return a nrows x ncols submatrix starting at (i-1, j-1).
Definition block.hpp:24

stan
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Definition unit_vector_constrain.hpp:15

block.hpp