Header files in dev-C++

Question

I\'m trying to add an header file to dev-C++ but when I compile it it doesn\'t work. Here are my exact steps (for my example, I\'m trying to get mysql.h to work):

Answer 1

You didn't say how you included it at the top of your file. This should work if you did

#include "mysql.h"

rather than

#include <mysql>

which is a mistake that people sometimes make.

EDIT: Perhaps try using relative paths rather than an absolute path (as you seem to be doing) when specifying additional include directories? I don't know if that would make a difference (and I don't have the time to check) but I've always used relative paths and it's always worked for me (it's also good practice anyway). So, instead of

C:\Projects\ProjectName\Include

something like

\Include or ..\Include depending on your project file structure.

Answer 2

Its very simple ...

Just make Your header file and save it as .h extension.

Then use #include "file_name.h" instead of using include

Example- This is my header file.

#include<iostream>
     using namespace std;

     namespace Ritesh
         {
             int a;
             int b;
             void sum();
         }
     void Ritesh::sum()
         {
             cout<<a+b;
         }

Then use of it-

#include<iostream>
#include "Ritesh.h"
   using namespace std;
   using namespace Ritesh;
   int main()
       {
           a=4;b=6;
           sum();
       }

Output- Output of program

Answer 3

I had the same problem....

You need to put the #include after "using namespace std;", in order to use your header file in the standard namespace.

For me it is working.

Best wishes.

Answer 4

Dev-C++ is a port of GCC, so try this page: http://gcc.gnu.org/onlinedocs/cpp/Search-Path.html.

Note that you probably have to tinkle with the Makefile.

Answer 5

On the left side, right click the Project and choose "Add to Project", and then select the header file.