Fix double use of eigen expression in rev pow

stan-dev · Jul 22, 2021 · 74cab27 · 74cab27
1 parent 023bf9e
commit 74cab27
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/stan/math/prim/fun/pow.hpp b/stan/math/prim/fun/pow.hpp
@@ -41,7 +41,7 @@ inline complex_return_t<U, V> complex_pow(const U& x, const V& y) {
 template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr,
           require_all_not_matrix_st<is_var, T1, T2>* = nullptr>
 inline auto pow(const T1& a, const T2& b) {
-  return apply_scalar_binary(a, b, [&](const auto& c, const auto& d) {
+  return apply_scalar_binary(a, b, [](const auto& c, const auto& d) {
     using std::pow;
     return pow(c, d);
   });

diff --git a/stan/math/rev/fun/pow.hpp b/stan/math/rev/fun/pow.hpp
@@ -329,7 +329,7 @@ template <typename T, typename Mat, require_arithmetic_t<T>* = nullptr,
 inline auto pow(T base, const Mat& exponent) {
   using ret_type = plain_type_t<Mat>;
   arena_t<ret_type> arena_exponent = exponent;
-  arena_t<ret_type> ret = exponent.val().unaryExpr(
+  arena_t<ret_type> ret = arena_exponent.val().unaryExpr(
       [base](auto&& x) { return std::pow(base, x); });
   reverse_pass_callback([base, arena_exponent, ret]() mutable {
     if (base == 0.0) {