adding header file in existing win32 library.

[Brianx]

Hi All,
I have an existing win32 class library. For some recent changes in my project i want to include <vector> header file.
I am completely new so i went to Heder folder of my application ->Right Click ->Add New Item -> New header file( which i named same as vector.h)

But it gave me an error showing that xFunctional header in missing in vector class
I repeated the same process to add up this new header file->xFunctional header.

Finally i was not able to compile the program because it gave error for all the tags "<" in the xFunctional header.

I have following questions.
1. Is my approach correct? please suggest me.

2.I am wondering as - Whats the role of header files in any class library. If i make a simple class in header file(.h), then do i need to make similar function in the .cpp file? ( I would appreciate if someone can just give me little direction on this point.

Thanks in advance.

[Brianx]

It seems that there vector is a part of std. so i used

#include<vector>
using namespace std;

and then my code ...so it started working . Still i really dont understand this logic.
Would appreciate if someone tries to answer these queries.

[modoran]

You only need to add YOUR OWN headers to project, not the ones that came with VS compiler (that ones is listed automatically under "aditional depedency" column).