Undefine primitive datatypes

[dhaval1987]

Hi,

Is there a way where in we can undefine primitive data types?
The requirement is that when I write something like
int a;
the compiler must substitute int with int64 or int depending on certain predefined macros. Since I cannot modify the existing code, the only apparent option I have is to write something like
#if defined (MACROX)
typedef int int;
#else
typedef int __int64;
#endif
But this is not allowed by the compiler.
Hence I thought of undefining the primitive data types and then mapping each of them to desired data types depending on the macros.

Kindly help.

Thank you.

[Athar]

You can't undefine them, although you can do a
#define int __int64

It'll probably end in disaster either way.