ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/system/system_error.hpp b/include/ndnboost/system/system_error.hpp
new file mode 100644
index 0000000..ffa732d
--- /dev/null
+++ b/include/ndnboost/system/system_error.hpp
@@ -0,0 +1,84 @@
+// Boost system_error.hpp --------------------------------------------------//
+
+// Copyright Beman Dawes 2006
+
+// 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)
+
+#ifndef NDNBOOST_SYSTEM_ERROR_HPP
+#define NDNBOOST_SYSTEM_ERROR_HPP
+
+#include <string>
+#include <stdexcept>
+#include <cassert>
+#include <ndnboost/system/error_code.hpp>
+
+namespace ndnboost
+{
+ namespace system
+ {
+ // class system_error ------------------------------------------------------------//
+
+ class NDNBOOST_SYMBOL_VISIBLE system_error : public std::runtime_error
+ // NDNBOOST_SYMBOL_VISIBLE is needed by GCC to ensure system_error thrown from a shared
+ // library can be caught. See svn.boost.org/trac/boost/ticket/3697
+ {
+ public:
+ system_error( error_code ec )
+ : std::runtime_error(""), m_error_code(ec) {}
+
+ system_error( error_code ec, const std::string & what_arg )
+ : std::runtime_error(what_arg), m_error_code(ec) {}
+
+ system_error( error_code ec, const char* what_arg )
+ : std::runtime_error(what_arg), m_error_code(ec) {}
+
+ system_error( int ev, const error_category & ecat )
+ : std::runtime_error(""), m_error_code(ev,ecat) {}
+
+ system_error( int ev, const error_category & ecat,
+ const std::string & what_arg )
+ : std::runtime_error(what_arg), m_error_code(ev,ecat) {}
+
+ system_error( int ev, const error_category & ecat,
+ const char * what_arg )
+ : std::runtime_error(what_arg), m_error_code(ev,ecat) {}
+
+ virtual ~system_error() throw() {}
+
+ const error_code & code() const throw() { return m_error_code; }
+ const char * what() const throw();
+
+ private:
+ error_code m_error_code;
+ mutable std::string m_what;
+ };
+
+ // implementation ------------------------------------------------------//
+
+ inline const char * system_error::what() const throw()
+ // see http://www.boost.org/more/error_handling.html for lazy build rationale
+ {
+ if ( m_what.empty() )
+ {
+#ifndef NDNBOOST_NO_EXCEPTIONS
+ try
+#endif
+ {
+ m_what = this->std::runtime_error::what();
+ if ( !m_what.empty() ) m_what += ": ";
+ m_what += m_error_code.message();
+ }
+#ifndef NDNBOOST_NO_EXCEPTIONS
+ catch (...) { return std::runtime_error::what(); }
+#endif
+ }
+ return m_what.c_str();
+ }
+
+ } // namespace system
+} // namespace ndnboost
+
+#endif // NDNBOOST_SYSTEM_ERROR_HPP
+
+