initialize_fill.hpp

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#ifndef STAN_MATH_PRIM_FUN_INITIALIZE_FILL_HPP
#define STAN_MATH_PRIM_FUN_INITIALIZE_FILL_HPP
 
#include <stan/math/prim/meta.hpp>
#include <stan/math/prim/fun/Eigen.hpp>
#include <vector>
 
namespace stan {
namespace math {
 
template <typename EigMat, typename S, require_eigen_t<EigMat>* = nullptr,
          require_stan_scalar_t<S>* = nullptr>
inline void initialize_fill(EigMat& x, const S& y) {
  x.fill(y);
}
 
template <
    typename T, typename S,
    require_t<std::is_assignable<std::decay_t<T>&, std::decay_t<S>>>* = nullptr>
inline void initialize_fill(T& x, S&& y) {
  x = std::forward<S>(y);
}
 
template <typename Vec, typename S, require_std_vector_t<Vec>* = nullptr>
inline void initialize_fill(Vec& x, S&& y) {
  for (auto& x_val : x) {
    initialize_fill(x_val, y);
  }
}
 
}  // namespace math
}  // namespace stan
 
#endif