*.h file, function definitions.. help

I was told by my professor that my function prototypes should be included in my *.h file. But, do I also include the function definitions in that file, or do those go in my *.cpp file? Please help..

Josh Stevanus
jrstevan@svsu.edu

Function definitions go in the .cpp.

An example of how you potentially could have things set up in a sample project...

File.H

Code:

#ifndef FUNC_H
#define FUNC_H
int func(int);
#endif

File.Cpp

Code:

#include "File.H"

int func(int data)
{
    ...
}

Main.Cpp

Code:

#include "File.H"

int main()
{
    int result, val;
    ...
    result = func(val);
}

Thus this sample project has 2 cpp files and 1 header file. You compile the 2 cpp files into object files and its the linkers job to combine those (typically along with some other library code) into a fully functioning executable file.