How are extern variables defined?
62409
What is the difference between a definition and a declaration?
137497
How to use setenv() to export a variable in c++?
12666
Header file and extern keyword
104651
How can I access a shadowed global variable in C?
91047
Pre-declare all private/local variables?
108400
Using "namespace foo {" instead of explicitly qualifying outside of header files
19728
Declaring type of pointers?
6518
What does `mv ./*` without specifying destination do?
28019
What is the effect of extern "C" in C++?
35109
C++ global and local variables
145669
Where is `exit` defined?
130477
In C, how do I restrict the scope of a global variable to the file in which it's declared?
158943
how to call function in executable from my library?
105287
(Why) is using an uninitialized variable undefined behavior?
154469
How can I access directory-local variables in my major mode hooks?
96031
What's the difference between the WIN32 and _WIN32 defines in C++
72198
execv() and const-ness