Squashed 'boost/' content from commit b4feb19f2

git-subtree-dir: boost
git-subtree-split: b4feb19f287ee92d87a9624b5d36b7cf46aeadeb

boost/align/align.hpp

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+/*
+(c) 2014-2015 Glen Joseph Fernandes
+<glenjofe -at- gmail.com>
+
+Distributed under the Boost Software
+License, Version 1.0.
+http://boost.org/LICENSE_1_0.txt
+*/
+#ifndef BOOST_ALIGN_ALIGN_HPP
+#define BOOST_ALIGN_ALIGN_HPP
+
+#include <boost/config.hpp>
+
+#if !defined(BOOST_NO_CXX11_STD_ALIGN)
+#include <boost/align/detail/align_cxx11.hpp>
+#else
+#include <boost/align/detail/align.hpp>
+#endif
+
+#endif

boost/align/detail/align.hpp

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+/*
+(c) 2014-2016 Glen Joseph Fernandes
+<glenjofe -at- gmail.com>
+
+Distributed under the Boost Software
+License, Version 1.0.
+http://boost.org/LICENSE_1_0.txt
+*/
+#ifndef BOOST_ALIGN_DETAIL_ALIGN_HPP
+#define BOOST_ALIGN_DETAIL_ALIGN_HPP
+
+#include <boost/align/detail/is_alignment.hpp>
+#include <boost/assert.hpp>
+
+namespace boost {
+namespace alignment {
+
+inline void* align(std::size_t alignment, std::size_t size,
+    void*& ptr, std::size_t& space)
+{
+    BOOST_ASSERT(detail::is_alignment(alignment));
+    if (size <= space) {
+        char* p = (char*)(((std::size_t)ptr + alignment - 1) &
+            ~(alignment - 1));
+        std::size_t n = space - (p - static_cast<char*>(ptr));
+        if (size <= n) {
+            ptr = p;
+            space = n;
+            return p;
+        }
+    }
+    return 0;
+}
+
+} /* .alignment */
+} /* .boost */
+
+#endif

boost/align/detail/align_cxx11.hpp

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+/*
+(c) 2014 Glen Joseph Fernandes
+<glenjofe -at- gmail.com>
+
+Distributed under the Boost Software
+License, Version 1.0.
+http://boost.org/LICENSE_1_0.txt
+*/
+#ifndef BOOST_ALIGN_DETAIL_ALIGN_CXX11_HPP
+#define BOOST_ALIGN_DETAIL_ALIGN_CXX11_HPP
+
+#include <memory>
+
+namespace boost {
+namespace alignment {
+
+using std::align;
+
+} /* .alignment */
+} /* .boost */
+
+#endif

boost/align/detail/is_alignment.hpp

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+/*
+(c) 2014 Glen Joseph Fernandes
+<glenjofe -at- gmail.com>
+
+Distributed under the Boost Software
+License, Version 1.0.
+http://boost.org/LICENSE_1_0.txt
+*/
+#ifndef BOOST_ALIGN_DETAIL_IS_ALIGNMENT_HPP
+#define BOOST_ALIGN_DETAIL_IS_ALIGNMENT_HPP
+
+#include <boost/config.hpp>
+#include <cstddef>
+
+namespace boost {
+namespace alignment {
+namespace detail {
+
+BOOST_CONSTEXPR inline bool is_alignment(std::size_t value)
+    BOOST_NOEXCEPT
+{
+    return (value > 0) && ((value & (value - 1)) == 0);
+}
+
+} /* .detail */
+} /* .alignment */
+} /* .boost */
+
+#endif