Are there any drawbacks to declaring variables in header files without the "extern" keyword?
14909
How do I use extern to share variables between source files?
28897
Variable declaration placement in C
150533
What's the difference between a header file and a library?
108994
How can I get around declaring an unused variable in a for loop?
20500
Declaring variables in external script
1289
Why can templates only be implemented in the header file?
35583
How do you properly use namespaces in C++?
10226
Headers Including Each Other in C++
28019
What is the effect of extern "C" in C++?
110354
What does the extern keyword mean?
55702
What are forward declarations in C++?
60984
When using C headers in C++, should we use functions from std:: or the global namespace?
70969
Is there any way to access a local variable in outer scope in C++?
86696
Is it possible to declare multiple static variables with same name in a single C file?
108400
Using "namespace foo {" instead of explicitly qualifying outside of header files
47488
Declaring a variable with "class " keyword vs Declaring one without "class" keyword in function signatures
130477
In C, how do I restrict the scope of a global variable to the file in which it's declared?