Cross-Platform C++ code and single header - multiple implementations

Question

I have heard that a way to write Cross Platform c++ code is to define classes as follows (for example, a Window class):

window.h
window_win32.cpp
window_linux.cp         


        

Answer 1

Most of the time, you avoid such things in the header. There are times, however, when you want to expose them. In such cases, my solution has always been to use something like:

#include dependentInclude(syst,MyInclude.lhh)

dependentInclude being a macro which expands to the the path of the file I need, depending on the value of syst (which was set on the command line).