Undefined reference when using  in C++
5096
Why does the order in which libraries are linked sometimes cause errors in GCC?
5165
What are the differences between a pointer variable and a reference variable in C++?
125535
How do I fix this "identifier is not declared in the current scope" error?
32019
Using pointers with classes in C++
76488
What is a reference-to-pointer?
132343
C++ const std::map reference fails to compile
60457
Undefined reference to `sin`
103863
Create a reference with new in C++
134130
Understanding 'using' keyword : C++
58542
What is a reference variable in C++?
99387
C++ undefined reference to template class method
131352
Pointer vs. Reference
5239
Variable initialization in C++
68463
How to resolve the linker error in C++ compiler
78452
LaTeX Warning: There were undefined references
88290
In C++ How do references and pointers in parameters actually work? What are their set-in-stone protocol/"rule"?
45594
Which kind of pointer do I use when?