make a variable global across all .cpp

[marhuum]

How do we make a variable global across all .cpp files/modules of one (will-be) binary, which is to be compiled and linked by g++ in one line?

[deleted account xyzzy]

extern

https://stackoverflow.com/questions/10422034/when-to-use-extern-in-c

[jonnin]

with a couple of extra lines you can make it a static class variable.