Fix strict aliasing rule violations in dtoa.c.

src/platform-posix.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 220 matching lines @@
   if (!IsValid())  {
     return false;
   }
 
   sockaddr_in addr;
   memset(&addr, 0, sizeof(addr));
   addr.sin_family = AF_INET;
   addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
   addr.sin_port = htons(port);
   int status = bind(socket_,
-                    reinterpret_cast<struct sockaddr *>(&addr),
+                    BitCast<struct sockaddr *>(&addr),
                     sizeof(addr));
   return status == 0;
 }
 
 
 bool POSIXSocket::Listen(int backlog) const {
   if (!IsValid()) {
     return false;
   }
 
@@ skipping 101 matching lines @@
   return ntohl(value);
 }
 
 
 Socket* OS::CreateSocket() {
   return new POSIXSocket();
 }
 
 
 } }  // namespace v8::internal