Programming and Graphics

184 Introduction to C++ Programming and Graphics

The source file “clrunner.cc” contains the class implementation:

#include<iostream>

#include<string>

using namespace std;

//--- CLASS DEFINITION

class runner

{

public:

...

private:

...

};

//--- CLASS IMPLEMENTATION

runner::runner()

{

time = 2000.0;

}

...

double runner::gettime() const

{

return time;

}

A makefile that compiles separately the main function and the class, and
then links the object files to generate the executable is structured as follows:

runnerfast: clrunner.o runnerfast.o

c++ -o runnerfast clrunner.o runnerfast.o

runnerfast.o: runnerfast.cc

c++ -c runnerfast.cc

clrunner.o: clrunner.cc clrunner.h

c++ -c clrunner.cc

To compile the program and create the executable named “runnerfast”, we
issue the command:

make runnerfast

and then hit thekey.

Note that the “include” statement:

#include "clrunner.h"