Header Files

[benaam]

My A.cpp is
#include "A.h"
writeFile() {
cout<<&quot;hello&quot;<<endl;
}
and in A.h I defined writeFile as a static method.

Now in my B.cpp goes as follows:

#include &quot;A.h&quot;;
int main() {
A::wirteFile();
}

I put all the header files and .cpp files in the same directory. When i am running it on WinNT its working
fine. But when I am running it on solaris using g++ I am getting an error.
When i say
g++ B.cpp
it gives an error undefined symbol writeFile. What can be the error? What should be the directory structure
I should follow when putting my header files and .cpp files?

Thanx in Advance

 

[2ffat]

The way I was taught to make a header file was to put the initial declarations in then call the &quot;.cpp&quot; file. For example:

class A { 
   private: 
   static char *ca1; 
   static char *ca2; 

   static void readFile(void); 
   static string wirteFile(void); 

} 

#include "A.cpp"

A.CPP would look like

class A { 
   private: 
   static char *ca1; 
   static char *ca2; 

   static void readFile(void); 
   static string wirteFile(void); 

} 

char* A::ca1 = new char[10]; 
char* A::ca2 = new char[10]; 

void readFile() { 
   cout<<&quot;hello&quot;; 
} 

void writeFile() { 
    cout<<&quot;hello&quot;; 
}

You don't include the A.h in the cpp file but you create another file that calls the header file. For example, Main.CPP

#include "A.h"
int main()
{
   A::writeFile()
}

Your B.CPP could then call A.CPP the way you do it now.


James P. Cottingham

http://www.ivcusa.com