How to write with VC++ and convert the final code to gcc

[write vc++ code with intetion to convert the final]

Hello,
I need to write a program in VC++. I would like to know
how can I write it in such a way that once I will finish
it, will be easy to convert it to gcc.
If you have any general guidenss or good references please
let me know.

Thank you in advance.

 

[Tom Reynoldson]

You should have no problems if you stick to using only the
standard library #includes (<string>, <map> etc.) and
don't touch MFC, ATL etc.

I'm in the middle of a cross-platform app and the code
compiles and runs without modification (none at all, just
a different Makefile) on both VC++7.1 and g++ (gcc)

Microsoft and g++ seem to have slightly different
preprocessors, but a little tweaking will easily sort that
out.