Setting the correct noexcept value depending on the strategy.

include/scope_exit.h

             {
                 return true;
             }
+
         };
 
     }

include/scope_fail.h

 
 
             int m_uncaught_on_creation = uncaught_exceptions();
+
         };
 
+
+        template<class F>
+        constexpr bool is_noexcept_dtor_v<F, scope_fail_strategy> = noexcept(std::declval<F>()());
+
     }
 
 
 
         using detail::scope_guard_base<EF, detail::scope_fail_strategy>::scope_guard_base;
 
-
     private:
 
     };

include/scope_guard_base.h

 namespace detail
 {
 
+    template<class F, class S>
+    constexpr bool is_noexcept_dtor_v = true;
+
+
     template<class EF, class Strategy>
     class scope_guard_base : private Strategy
     {
 
         scope_guard_base(const scope_guard_base&) = delete;
 
-        ~scope_guard_base() noexcept(true)
+
+        ~scope_guard_base() noexcept(is_noexcept_dtor_v<EF, Strategy>)
         {
             if( (m_execute_on_destruction == true) && (this->should_execute() == true) )
             {

include/scope_success.h

                 return ( std::uncaught_exception() == true ? 1 : 0 );
             }
 
-
             int m_uncaught_on_creation = uncaught_exceptions();
         };