Remove reference capture

Author: andrjohns

stan/math/prim/fun/bessel_first_kind.hpp

@@ -55,7 +55,7 @@ template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr,
           require_not_var_matrix_t<T2>* = nullptr>
 inline auto bessel_first_kind(const T1& a, const T2& b) {
   return apply_scalar_binary(
-    [&](const auto& c, const auto& d) { return bessel_first_kind(c, d); },
+    [](const auto& c, const auto& d) { return bessel_first_kind(c, d); },
     a, b);
 }
 

stan/math/prim/fun/bessel_second_kind.hpp

@@ -55,7 +55,7 @@ inline T2 bessel_second_kind(int v, const T2 z) {
 template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr>
 inline auto bessel_second_kind(const T1& a, const T2& b) {
   return apply_scalar_binary(
-    [&](const auto& c, const auto& d) { return bessel_second_kind(c, d); },
+    [](const auto& c, const auto& d) { return bessel_second_kind(c, d); },
     a, b);
 }
 

stan/math/prim/fun/binary_log_loss.hpp

@@ -46,7 +46,7 @@ template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr,
           require_not_var_matrix_t<T2>* = nullptr>
 inline auto binary_log_loss(const T1& a, const T2& b) {
   return apply_scalar_binary(
-      [&](const auto& c, const auto& d) { return binary_log_loss(c, d); },
+      [](const auto& c, const auto& d) { return binary_log_loss(c, d); },
       a, b);
 }
 

stan/math/prim/fun/binomial_coefficient_log.hpp

@@ -163,7 +163,7 @@ inline return_type_t<T_n, T_k> binomial_coefficient_log(const T_n n,
 template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr>
 inline auto binomial_coefficient_log(const T1& a, const T2& b) {
   return apply_scalar_binary(
-    [&](const auto& c, const auto& d) { return binomial_coefficient_log(c, d); },
+    [](const auto& c, const auto& d) { return binomial_coefficient_log(c, d); },
     a, b);
 }
 

stan/math/prim/fun/choose.hpp

@@ -51,7 +51,7 @@ inline int choose(int n, int k) {
 template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr>
 inline auto choose(const T1& a, const T2& b) {
   return apply_scalar_binary(
-    [&](const auto& c, const auto& d) { return choose(c, d); }, a, b);
+    [](const auto& c, const auto& d) { return choose(c, d); }, a, b);
 }
 
 }  // namespace math

stan/math/prim/fun/falling_factorial.hpp

@@ -82,7 +82,7 @@ template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr,
           require_all_not_var_matrix_t<T1, T2>* = nullptr>
 inline auto falling_factorial(const T1& a, const T2& b) {
   return apply_scalar_binary(
-    [&](const auto& c, const auto& d) { return falling_factorial(c, d); },
+    [](const auto& c, const auto& d) { return falling_factorial(c, d); },
     a, b);
 }
 

stan/math/prim/fun/fdim.hpp

@@ -37,7 +37,7 @@ inline double fdim(T1 x, T2 y) {
 template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr>
 inline auto fdim(const T1& a, const T2& b) {
   return apply_scalar_binary(
-    [&](const auto& c, const auto& d) { return fdim(c, d); }, a, b);
+    [](const auto& c, const auto& d) { return fdim(c, d); }, a, b);
 }
 
 }  // namespace math

stan/math/prim/fun/fmax.hpp

@@ -35,7 +35,7 @@ inline double fmax(T1 x, T2 y) {
 template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr>
 inline auto fmax(const T1& a, const T2& b) {
   return apply_scalar_binary(
-    [&](const auto& c, const auto& d) { return fmax(c, d); }, a, b);
+    [](const auto& c, const auto& d) { return fmax(c, d); }, a, b);
 }
 
 }  // namespace math

stan/math/prim/fun/fmin.hpp

@@ -35,7 +35,7 @@ inline double fmin(T1 x, T2 y) {
 template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr>
 inline auto fmin(const T1& a, const T2& b) {
   return apply_scalar_binary(
-    [&](const auto& c, const auto& d) { return fmin(c, d); }, a, b);
+    [](const auto& c, const auto& d) { return fmin(c, d); }, a, b);
 }
 
 }  // namespace math

stan/math/prim/fun/fmod.hpp

@@ -35,7 +35,7 @@ inline double fmod(const T1& a, const T2& b) {
  */
 template <typename T1, typename T2, require_any_container_t<T1, T2>* = nullptr>
 inline auto fmod(const T1& a, const T2& b) {
-  return apply_scalar_binary([&](const auto& c, const auto& d) {
+  return apply_scalar_binary([](const auto& c, const auto& d) {
     using std::fmod;
     return fmod(c, d);
   }, a, b);