add boost on mac

macx64/include/boost/beast/core/ostream.hpp

@@ -0,0 +1,90 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// 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)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_WRITE_OSTREAM_HPP
+#define BOOST_BEAST_WRITE_OSTREAM_HPP
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/beast/core/detail/ostream.hpp>
+#include <type_traits>
+#include <streambuf>
+#include <utility>
+
+#ifdef BOOST_BEAST_ALLOW_DEPRECATED
+#include <boost/beast/core/make_printable.hpp>
+#endif
+
+namespace boost {
+namespace beast {
+
+/** Return an output stream that formats values into a <em>DynamicBuffer</em>.
+
+    This function wraps the caller provided <em>DynamicBuffer</em> into
+    a `std::ostream` derived class, to allow `operator<<` stream style
+    formatting operations.
+
+    @par Example
+    @code
+        ostream(buffer) << "Hello, world!" << std::endl;
+    @endcode
+
+    @note Calling members of the underlying buffer before the output
+    stream is destroyed results in undefined behavior.
+
+    @param buffer An object meeting the requirements of <em>DynamicBuffer</em>
+    into which the formatted output will be placed.
+
+    @return An object derived from `std::ostream` which redirects output
+    The wrapped dynamic buffer is not modified, a copy is made instead.
+    Ownership of the underlying memory is not transferred, the application
+    is still responsible for managing its lifetime. The caller is
+    responsible for ensuring the dynamic buffer is not destroyed for the
+    lifetime of the output stream.
+*/
+template<class DynamicBuffer>
+#if BOOST_BEAST_DOXYGEN
+__implementation_defined__
+#else
+detail::ostream_helper<
+    DynamicBuffer, char, std::char_traits<char>,
+        detail::basic_streambuf_movable::value>
+#endif
+ostream(DynamicBuffer& buffer)
+{
+    static_assert(
+        net::is_dynamic_buffer<DynamicBuffer>::value,
+        "DynamicBuffer type requirements not met");
+    return detail::ostream_helper<
+        DynamicBuffer, char, std::char_traits<char>,
+            detail::basic_streambuf_movable::value>{buffer};
+}
+
+//------------------------------------------------------------------------------
+
+#ifdef BOOST_BEAST_ALLOW_DEPRECATED
+template<class T>
+detail::make_printable_adaptor<T>
+buffers(T const& t)
+{
+    return make_printable(t);
+}
+#else
+template<class T>
+void buffers(T const&)
+{
+    static_assert(sizeof(T) == 0,
+        "The function buffers() is deprecated, use make_printable() instead, "
+        "or define BOOST_BEAST_ALLOW_DEPRECATED to silence this error.");
+}
+#endif
+
+} // beast
+} // boost
+
+#endif