Top "Extern" questions

How do I use extern to share variables between source files?

I know that global variables in C sometimes have the extern keyword. What is an extern variable? What is the …

c global-variables extern

How do I share a global variable between c files?

If i define a global variable in a .c file, how can i use the value of the same variable …

c extern

static and extern global variables in C and C++

I made 2 projects, the first one in C and the second one in C++, both work with same behavior. C …

c++ c static global-variables extern

using extern template (C++11)

Figure 1: function templates TemplHeader.h template<typename T> void f(); TemplCpp.cpp template<typename T> void …

c++ templates c++11 extern

How to make a structure extern and define its typedef

I'm trying to implement tree algorithms in C. I have declared a extern struct in a header file that is …

c extern structure

Why won't extern link to a static variable?

Why does extern int n not compile when n is declared (in a different file) static int n, but works …

c static extern

Create extern char array in C

How to create an external character array in C? I have tried various ways to define char cmdval[128] but it …

c char extern

"Unable to find an entry point named [function] in dll" (c++ to c# type conversion)

I have a dll which comes from a third party, which was written in C++. Here is some information that …

c# c++ dll dllimport extern

C++ extern keyword on functions. Why no just include the header file?

If I understand it correctly this means extern void foo(); that the function foo is declared in another translation unit. 1) …

c++ linker extern

Mixing extern and const

Can I mix extern and const, as extern const? If yes, does the const qualifier impose it's reign only within …

c++ c constants scope extern