Merging in changes trunk updates: adding standard error_info typedefs, updating the documentation.

[SVN r55094]

include/boost/exception/errinfo_file_name.hpp

@@ -0,0 +1,26 @@
+//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
+
+//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 UUID_FEE5120A6C1211DE94E8BC9155D89593
+#define UUID_FEE5120A6C1211DE94E8BC9155D89593
+
+#include <string>
+
+namespace
+boost
+    {
+    template <class Tag,class T> class error_info;
+
+    //Usage hint:
+    //FILE * f=fopen(name,mode);
+    //if( !f )
+    //    BOOST_THROW_EXCEPTION(
+    //        file_open_error() <<
+    //        errinfo_file_name(name) <<
+    //        errinfo_file_open_mode(mode) );
+    typedef error_info<struct errinfo_file_name_,std::string> errinfo_file_name;
+    }
+
+#endif