Added thirdparty: boost library

thirdparty/include/boost/log/utility/manipulators/auto_newline.hpp

@@ -0,0 +1,66 @@
+/*
+ *             Copyright Andrey Semashev 2019.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          https://www.boost.org/LICENSE_1_0.txt)
+ */
+/*!
+ * \file   utility/manipulators/auto_newline.hpp
+ * \author Andrey Semashev
+ * \date   23.06.2019
+ *
+ * The header contains implementation of a stream manipulator for inserting a newline, unless there is already one inserted.
+ */
+
+#ifndef BOOST_LOG_UTILITY_MANIPULATORS_AUTO_NEWLINE_HPP_INCLUDED_
+#define BOOST_LOG_UTILITY_MANIPULATORS_AUTO_NEWLINE_HPP_INCLUDED_
+
+#include <boost/log/detail/config.hpp>
+#include <boost/log/utility/formatting_ostream_fwd.hpp>
+#include <boost/log/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+
+BOOST_LOG_OPEN_NAMESPACE
+
+/*!
+ * Stream manipulator for inserting a newline character, unless the last character
+ * inserted into the stream is already a newline.
+ */
+struct auto_newline_manip {}
+BOOST_INLINE_VARIABLE const auto_newline = {};
+
+/*!
+ * Stream output operator for the \c auto_newline manipulator
+ */
+template< typename CharT, typename TraitsT, typename AllocatorT >
+inline basic_formatting_ostream< CharT, TraitsT, AllocatorT >& operator<< (basic_formatting_ostream< CharT, TraitsT, AllocatorT >& strm, auto_newline_manip)
+{
+    typedef basic_formatting_ostream< CharT, TraitsT, AllocatorT > stream_type;
+    typedef typename stream_type::char_type char_type;
+    typedef typename stream_type::string_type string_type;
+    if (BOOST_LIKELY(strm.good()))
+    {
+        string_type* str = strm.rdbuf()->storage();
+        if (BOOST_LIKELY(!!str))
+        {
+            strm.rdbuf()->pubsync();
+            if (str->empty() || *str->rbegin() != static_cast< char_type >('\n'))
+                strm.rdbuf()->push_back(static_cast< char_type >('\n'));
+        }
+    }
+
+    return strm;
+}
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_UTILITY_MANIPULATORS_AUTO_NEWLINE_HPP_INCLUDED_