extern

I'm completely confused. the famous stupid example x/y: we have 2 cpp files the first file extern int x; int y = x+1; Second ... hly speaking no declaration, but already a full-fledged definition, since it acquires both the address and the value zero ???

I wanted to understand how the static methods of the Console class work, and I wanted to write my own WriteLine method. I rea ... t figure it out any further. Does anyone know how the Write, Read methods work in the Console class? Thank you in advance.

There is such a file header (header). #ifndef GLOBAL_H #define GLOBAL_H enum { SPRITE, PANEL }; struct global { int ... mT2vV.o:(.bss+0x0): first defined here collect2: error: ld returned 1 exit status makefile:4: recipe for target 'all' failed