Hello All,
I know that there is a similar thread about my problem, but I can't find it anymore.
Well basically I want 2 objects to know from each other. I know that in C++ I have to
use pointers to do that. I wrote some sample code to show you the problem:
#ifndef A_HPP_
#define A_HPP_
#include "B.hpp"
class A
{
public:
//B* bpt;
A();
virtual ~A();
private:
B* bpt;
};
#endif /*A_HPP_*/
=========================================
#include "A.hpp"
#include "B.hpp"
A::A()
{
}
A::~A()
{
}
========================================
#ifndef B_HPP_
#define B_HPP_
#include "A.hpp"
class B
{
public:
//A* apt;
B();
virtual ~B();
private:
A* apt;
};
#endif /*B_HPP_*/
=======================================
#include "B.hpp"
#include "A.hpp"
B::B()
{
}
B::~B()
{
}
======================================
The error I get is:
**** Build of configuration Linux GCC for project TestCrossPt ****
make all
g++ -c A.cpp
B.hpp:13: error: ISO C++ forbids declaration of ‘A’ with no type
B.hpp:13: error: expected ‘;’ before ‘*’ token
make: *** [A.o] Error 1
======================================
And this is the makefile I use:
all: test
test: A.o B.o TestCrossPt.o
g++ A.o B.o TestCrossPt.o -o test.exe -lpthread
A.o: A.cpp
g++ -c A.cpp
B.o: B.hpp
g++ -c B.cpp
TestCrossPt.o: TestCrossPt.cpp
g++ -c TestCrossPt.cpp
==========================================
Well, I am pretty new to C++ so please use easy language
many thanks
Rick
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