fdim.hpp

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#ifndef STAN_MATH_PRIM_FUN_FDIM_HPP
#define STAN_MATH_PRIM_FUN_FDIM_HPP
 
#include <stan/math/prim/meta.hpp>
#include <stan/math/prim/functor/apply_scalar_binary.hpp>
 
namespace stan {
namespace math {
 
template <typename T1, typename T2, require_all_arithmetic_t<T1, T2>* = nullptr>
inline double fdim(T1 x, T2 y) {
  using std::fdim;
  return fdim(x, y);
}
 
template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr>
inline auto fdim(T1&& a, T2&& b) {
  return apply_scalar_binary(
      [](auto&& c, auto&& d) {
        return fdim(std::forward<decltype(c)>(c), std::forward<decltype(d)>(d));
      },
      std::forward<T1>(a), std::forward<T2>(b));
}
 
}  // namespace math
}  // namespace stan
#endif