detail/foa/ignore_wshadow.hpp

0001 /* Copyright 2023 Joaquin M Lopez Munoz.
0002  * Distributed under the Boost Software License, Version 1.0.
0003  * (See accompanying file LICENSE_1_0.txt or copy at
0004  * http://www.boost.org/LICENSE_1_0.txt)
0005  *
0006  * See https://www.boost.org/libs/unordered for library home page.
0007  */
0008
0009 #include <boost/config.hpp>
0010
0011 #if defined(BOOST_GCC)
0012 #if !defined(BOOST_UNORDERED_DETAIL_RESTORE_WSHADOW)
0013  /* GCC's -Wshadow triggers at scenarios like this:
0014  *
0015  *   struct foo{};
0016  *   template<typename Base>
0017  *   struct derived:Base
0018  *   {
0019  *     void f(){int foo;}
0020  *   };
0021  *
0022  *   derived<foo>x;
0023  *   x.f(); // declaration of "foo" in derived::f shadows base type "foo"
0024  *
0025  * This makes shadowing warnings unavoidable in general when a class template
0026  * derives from user-provided classes, as is the case with foa::table_core
0027  * deriving from empty_value.
0028  */
0029
0030 #pragma GCC diagnostic push
0031 #pragma GCC diagnostic ignored "-Wshadow"
0032 #else
0033 #pragma GCC diagnostic pop
0034 #endif
0035 #endif