ex_adder: full_adder.h

// File : full_adder.h
#include "half_adder.h"

SC_MODULE(full_adder)
{
        sc_in<bool> a,b,carry_in;
        sc_out<bool> sum,carry_out;

        sc_signal<bool> c1,s1,c2;
        void prc_or();

        half_adder *ha1_ptr,*ha2_ptr;

        SC_CTOR(full_adder) : a("a"),b("b"),carry_in("carry_in"),
                                sum("sum"), carry_out("carry_out"),
                                c1("c1"),s1("s1"),c2("c2")
        {
                ha1_ptr=new half_adder("ha1");
                // Named association:
                ha1_ptr->a(a);
                ha1_ptr->b(b);
                ha1_ptr->sum(s1);
                ha1_ptr->carry(c1);

                ha2_ptr=new half_adder("ha2");
                // Positional association:
                (*ha2_ptr)(s1,carry_in,sum,c2);

                SC_METHOD(prc_or);
                sensitive << c1 << c2;
        }

        // A destructor
        ~full_adder()
        {
                delete ha1_ptr;
                delete ha2_ptr;
        }
};