Workaround for GCC 13.0 and 13.1

Author: mborland

include/boost/math/tools/promotion.hpp

@@ -185,6 +185,32 @@ namespace boost
       #endif
 
       #ifdef __STDCPP_FLOAT64_T__
+
+      #if __GNUC__ == 13 && __GNUC_MINOR__ < 2
+      template <> struct promote_args_2<int, std::float64_t> { using type = double; };
+      template <> struct promote_args_2<std::float64_t, int> { using type = double; };
+      template <> struct promote_args_2<std::float64_t, float> { using type = double; };
+      template <> struct promote_args_2<float, std::float64_t> { using type = double; };
+      template <> struct promote_args_2<std::float64_t, double> { using type = double; };
+      template <> struct promote_args_2<double, std::float64_t> { using type = double; };
+      template <> struct promote_args_2<std::float64_t, long double> { using type = long double; };
+      template <> struct promote_args_2<long double, std::float64_t> { using type = long double; };
+      
+
+      #ifdef __STDCPP_FLOAT16_T__
+      template <> struct promote_args_2<std::float64_t, std::float16_t> { using type = double; };
+      template <> struct promote_args_2<std::float16_t, std::float64_t> { using type = double; };
+      #endif
+
+      #ifdef __STDCPP_FLOAT32_T__
+      template <> struct promote_args_2<std::float64_t, std::float32_t> { using type = double; };
+      template <> struct promote_args_2<std::float32_t, std::float64_t> { using type = double; };
+      #endif
+
+      template <> struct promote_args_2<std::float64_t, std::float64_t> { using type = double; };
+
+      #else
+
       template <> struct promote_args_2<int, std::float64_t> { using type = std::float64_t; };
       template <> struct promote_args_2<std::float64_t, int> { using type = std::float64_t; };
       template <> struct promote_args_2<std::float64_t, float> { using type = std::float64_t; };
@@ -193,6 +219,7 @@ namespace boost
       template <> struct promote_args_2<double, std::float64_t> { using type = std::float64_t; };
       template <> struct promote_args_2<std::float64_t, long double> { using type = long double; };
       template <> struct promote_args_2<long double, std::float64_t> { using type = long double; };
+      
 
       #ifdef __STDCPP_FLOAT16_T__
       template <> struct promote_args_2<std::float64_t, std::float16_t> { using type = std::float64_t; };
@@ -206,8 +233,29 @@ namespace boost
 
       template <> struct promote_args_2<std::float64_t, std::float64_t> { using type = std::float64_t; };
       #endif
+      #endif
 
       #ifdef __STDCPP_FLOAT32_T__
+
+      #if __GNUC__ == 13 && __GNUC_MINOR__ < 2
+      template <> struct promote_args_2<int, std::float32_t> { using type = float; };
+      template <> struct promote_args_2<std::float32_t, int> { using type = float; };
+      template <> struct promote_args_2<std::float32_t, float> { using type = float; };
+      template <> struct promote_args_2<float, std::float32_t> { using type = float; };
+      template <> struct promote_args_2<std::float32_t, double> { using type = double; };
+      template <> struct promote_args_2<double, std::float32_t> { using type = double; };
+      template <> struct promote_args_2<std::float32_t, long double> { using type = long double; };
+      template <> struct promote_args_2<long double, std::float32_t> { using type = long double; };
+
+      #ifdef __STDCPP_FLOAT16_T__
+      template <> struct promote_args_2<std::float32_t, std::float16_t> { using type = float; };
+      template <> struct promote_args_2<std::float16_t, std::float32_t> { using type = float; };
+      #endif
+
+      template <> struct promote_args_2<std::float32_t, std::float32_t> { using type = float; };
+      
+      #else
+
       template <> struct promote_args_2<int, std::float32_t> { using type = std::float32_t; };
       template <> struct promote_args_2<std::float32_t, int> { using type = std::float32_t; };
       template <> struct promote_args_2<std::float32_t, float> { using type = std::float32_t; };
@@ -224,6 +272,7 @@ namespace boost
 
       template <> struct promote_args_2<std::float32_t, std::float32_t> { using type = std::float32_t; };
       #endif
+      #endif
 
       #ifdef __STDCPP_FLOAT16_T__
       template <> struct promote_args_2<int, std::float16_t> { using type = std::float16_t; };