[Bug c++/58057] New: gcc lexer cannot parse extern "\x43" void blah();

[schnoerr at mailzone dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58057

            Bug ID: 58057
           Summary: gcc lexer cannot parse  extern "\x43" void blah();
           Product: gcc
           Version: 4.7.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: schnoerr at mailzone dot com

g++ 4.7.3 fails to compile 
    extern "\x43" void blah();
which is obfuscated and equivalent to
    extern "C" void blah();

This is no problem for the g++ 4.6.3 so it must have been newly introduced in
g++.