/*
-Copyright Rene Rivera 2008-2015
+Copyright Rene Rivera 2008-2021
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)
/* tag::reference[]
= `BOOST_ARCH_X86_64`
-http://en.wikipedia.org/wiki/Ia64[Intel IA-64] architecture.
+https://en.wikipedia.org/wiki/X86-64[X86-64] architecture.
[options="header"]
|===
# define BOOST_ARCH_X86_64_AVAILABLE
#endif
+#if BOOST_ARCH_X86_64
+# undef BOOST_ARCH_WORD_BITS_64
+# define BOOST_ARCH_WORD_BITS_64 BOOST_VERSION_NUMBER_AVAILABLE
+#endif
+
#define BOOST_ARCH_X86_64_NAME "Intel x86-64"
#include <boost/predef/architecture/x86.h>