ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/detail/current_directory.hpp b/include/ndnboost/iostreams/detail/current_directory.hpp
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+++ b/include/ndnboost/iostreams/detail/current_directory.hpp
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+/*
+ * 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.)
+ *
+ * See http://www.boost.org/libs/iostreams for documentation.
+
+ * File: ndnboost/iostreams/detail/execute.hpp
+ * Date: Thu Dec 06 13:21:54 MST 2007
+ * Copyright: 2007-2008 CodeRage, LLC
+ * Author: Jonathan Turkanis
+ * Contact: turkanis at coderage dot com
+ *
+ * Defines the function ndnboost::iostreams::detail::current_directory, used by
+ * ndnboost::iostreams::detail::absolute_path.
+ */
+
+#ifndef NDNBOOST_IOSTREAMS_DETAIL_CURRENT_DIRECTORY_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_DETAIL_CURRENT_DIRECTORY_HPP_INCLUDED
+
+#include <ndnboost/config.hpp> // make sure size_t is in std.
+#include <cstddef> // size_t
+#include <string>
+#include <ndnboost/iostreams/detail/buffer.hpp>
+#include <ndnboost/iostreams/detail/config/windows_posix.hpp>
+#include <ndnboost/iostreams/detail/system_failure.hpp>
+#ifdef NDNBOOST_IOSTREAMS_WINDOWS
+# define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
+# include <windows.h>
+#else
+# include <unistd.h> // sysconf.
+#endif
+
+// Must come last.
+#include <ndnboost/iostreams/detail/config/disable_warnings.hpp>
+
+namespace ndnboost { namespace iostreams { namespace detail {
+
+// Returns the current working directory
+inline std::string current_directory()
+{
+#ifdef NDNBOOST_IOSTREAMS_WINDOWS
+ DWORD length;
+ basic_buffer<char> buf(MAX_PATH);
+ while (true) {
+ length = ::GetCurrentDirectoryA(buf.size(), buf.data());
+ if (!length)
+ throw_system_failure("failed determining current directory");
+ if (length < static_cast<DWORD>(buf.size()))
+ break;
+ buf.resize(buf.size() * 2);
+ }
+ return std::string(buf.data(), length);
+#else // #ifdef NDNBOOST_IOSTREAMS_WINDOWS
+ basic_buffer<char> buf(pathconf(".", _PC_PATH_MAX));
+ if (!getcwd(buf.data(), static_cast<size_t>(buf.size())))
+ throw_system_failure("failed determining current directory");
+ return std::string(buf.data());
+#endif // #ifdef NDNBOOST_IOSTREAMS_WINDOWS
+}
+
+} } } // End namespaces detail, iostreams, boost.
+
+#include <ndnboost/iostreams/detail/config/enable_warnings.hpp>
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_DETAIL_CURRENT_DIRECTORY_HPP_INCLUDED