extended Wshadow supression to foa::table

include/boost/unordered/detail/foa/core.hpp

@@ -991,41 +991,6 @@ _STL_RESTORE_DEPRECATED_WARNING
 #pragma warning(pop)
 #endif
 
-#if defined(BOOST_GCC)
-/* GCC's -Wshadow triggers at scenarios like this: 
- *
- *   struct foo{};
- *   template<typename Base>
- *   struct derived:Base
- *   {
- *     void f(){int foo;}
- *   };
- * 
- *   derived<foo>x;
- *   x.f(); // declaration of "foo" in derived::f shadows base type "foo"
- *
- * This makes shadowing warnings unavoidable in general when a class template
- * derives from user-provided classes, as is the case with table_core and
- * empty_value's below.
- */
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wshadow"
-#endif
-
-#if defined(BOOST_MSVC)
-#pragma warning(push)
-#pragma warning(disable:4714) /* marked as __forceinline not inlined */
-#endif
-
-#if BOOST_WORKAROUND(BOOST_MSVC,<=1900)
-/* VS2015 marks as unreachable generic catch clauses around non-throwing
- * code.
- */
-#pragma warning(push)
-#pragma warning(disable:4702)
-#endif
-
 /* We expose the hard-coded max load factor so that tests can use it without
  * needing to pull it from an instantiated class template such as the table
  * class.
@@ -1084,6 +1049,21 @@ struct try_emplace_args_t{};
  *     the element_type itself is moved.
  */
 
+#include <boost/unordered/detail/foa/ignore_wshadow.hpp>
+
+#if defined(BOOST_MSVC)
+#pragma warning(push)
+#pragma warning(disable:4714) /* marked as __forceinline not inlined */
+#endif
+
+#if BOOST_WORKAROUND(BOOST_MSVC,<=1900)
+/* VS2015 marks as unreachable generic catch clauses around non-throwing
+ * code.
+ */
+#pragma warning(push)
+#pragma warning(disable:4702)
+#endif
+
 template<typename TypePolicy,typename Hash,typename Pred,typename Allocator>
 class 
 
@@ -1878,9 +1858,7 @@ private:
 #pragma warning(pop) /* C4714 */
 #endif
 
-#if defined(BOOST_GCC)
+#include <boost/unordered/detail/foa/restore_wshadow.hpp>
-#pragma GCC diagnostic pop /* ignored "-Wshadow" */
-#endif
 
 } /* namespace foa */
 } /* namespace detail */

include/boost/unordered/detail/foa/ignore_wshadow.hpp

@@ -0,0 +1,35 @@
+/* Copyright 2023 Joaquin M Lopez Munoz.
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * See https://www.boost.org/libs/unordered for library home page.
+ */
+
+#include <boost/config.hpp>
+
+#if defined(BOOST_GCC)
+#if !defined(BOOST_UNORDERED_DETAIL_RESTORE_WSHADOW)
+ /* GCC's -Wshadow triggers at scenarios like this: 
+ *
+ *   struct foo{};
+ *   template<typename Base>
+ *   struct derived:Base
+ *   {
+ *     void f(){int foo;}
+ *   };
+ * 
+ *   derived<foo>x;
+ *   x.f(); // declaration of "foo" in derived::f shadows base type "foo"
+ *
+ * This makes shadowing warnings unavoidable in general when a class template
+ * derives from user-provided classes, as is the case with foa::table_core
+ * deriving from empty_value.
+ */
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wshadow"
+#else
+#pragma GCC diagnostic pop
+#endif
+#endif

include/boost/unordered/detail/foa/restore_wshadow.hpp

@@ -0,0 +1,11 @@
+/* Copyright 2023 Joaquin M Lopez Munoz.
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * See https://www.boost.org/libs/unordered for library home page.
+ */
+
+#define BOOST_UNORDERED_DETAIL_RESTORE_WSHADOW
+#include <boost/unordered/detail/foa/ignore_wshadow.hpp>
+#undef BOOST_UNORDERED_DETAIL_RESTORE_WSHADOW

include/boost/unordered/detail/foa/table.hpp

@@ -205,6 +205,8 @@ union uninitialized_storage
  * boost::unordered_[flat|node]_[map|set].
  */
 
+#include <boost/unordered/detail/foa/ignore_wshadow.hpp>
+
 template<typename TypePolicy,typename Hash,typename Pred,typename Allocator>
 class table:table_core<TypePolicy,Hash,Pred,Allocator>
 {
@@ -504,6 +506,8 @@ private:
   }
 };
 
+#include <boost/unordered/detail/foa/restore_wshadow.hpp>
+
 } /* namespace foa */
 } /* namespace detail */
 } /* namespace unordered */