diff --git a/.travis.yml b/.travis.yml
index 2b986aa..f4daab3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -120,6 +120,16 @@ matrix:
           sources:
             - ubuntu-toolchain-r-test
 
+    - os: linux
+      compiler: g++-9
+      env: TOOLSET=gcc COMPILER=g++-9 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - g++-9
+          sources:
+            - ubuntu-toolchain-r-test
+
     - os: linux
       compiler: clang++
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11
@@ -244,7 +254,7 @@ matrix:
 
     - os: linux
       compiler: clang++-8
-      env: TOOLSET=clang COMPILER=clang++-8 STANDARD=03,11,14,17,2a
+      env: TOOLSET=clang COMPILER=clang++-8 CXXSTD=03,11,14,17,2a
       addons:
         apt:
           packages:
diff --git a/include/boost/functional/factory.hpp b/include/boost/functional/factory.hpp
index 4e0e1ba..a7cd9d7 100644
--- a/include/boost/functional/factory.hpp
+++ b/include/boost/functional/factory.hpp
@@ -10,10 +10,10 @@ Distributed under the Boost Software License, Version 1.0.
 #ifndef BOOST_FUNCTIONAL_FACTORY_HPP
 #define BOOST_FUNCTIONAL_FACTORY_HPP
 
+#include <boost/config.hpp>
 #include <boost/core/empty_value.hpp>
 #include <boost/core/pointer_traits.hpp>
 #include <boost/type_traits/remove_cv.hpp>
-#include <boost/config.hpp>
 #if !defined(BOOST_NO_CXX11_ALLOCATOR)
 #include <memory>
 #endif
@@ -141,15 +141,15 @@ public:
 private:
     typedef typename fc_pointer<A>::type pointer;
 
-    fc_allocate(const fc_allocate&);
-    fc_allocate& operator=(const fc_allocate&);
-
     pointer release() BOOST_NOEXCEPT {
         pointer p = p_;
         p_ = pointer();
         return p;
     }
 
+    fc_allocate(const fc_allocate&);
+    fc_allocate& operator=(const fc_allocate&);
+
     A a_;
     pointer p_;
 };