Compile errors

[Eljay Love-Jensen]

Hi Parms,

I strongly recommend avoiding <hash_map.h>, and instead recommend <ext/hash_map> which has symbols in the __gnu_cxx namespace.

If you do want to use the backward compatibility header files, make sure you do not co-mingle backward compatibility header files with C++ compliant header files.  I suspect that may cause problems.  (For instance, if you use <hash_map.h>, then you should use the non-compliant <iostream.h> and not the C++ compliant <iostream>.)

Otherwise you may run into symbol collisions, such as the one you are running into with the swap symbol already being used.

HTH,
--Eljay