Scope(exit) has been recently added to Boost 1.38

[The Anh Tran]

http://www.boost.org/doc/libs/1_38_0/libs/scope_exit/doc/html/scope_exit/alternatives.html

try
{
    File passwd("/etc/passwd");
    BOOST_SCOPE_EXIT( (&passwd) )
    {
        passwd.close();
    } BOOST_SCOPE_EXIT_END
    // ...
}
catch(...)
{
    log("could not get user info");
    throw;
}