From: jfvschra AT eduserv1 DOT rug DOT ac DOT be (Johan Verschraegen)
Newsgroups: comp.os.msdos.djgpp
Subject: Gcc bug?
Date: 24 Sep 1998 13:54:25 GMT
Organization: University of Ghent, Belgium
Lines: 52
Message-ID: <6udiuh$f9p$1@inf6serv.rug.ac.be>
NNTP-Posting-Host: eduserv1.rug.ac.be
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

I use gcc from djgpp to compile the following C++ program under DOS. I
get two warnings: (1)assuming & on 'Test::PrintMode0()' and
                  (2)assuming & on 'Test::PrintMode1()'
There's also an error: (3)in method 'void Test::Print()'
                          must use .* or ->* to call printer-to-member
                          function in 'Test::PrintPtr(...)'
When i tried to compile to program with gcc under Unix i got no errors and
the program worked fine. Please help me with how to solve this.

//begin of the program
#include <stdio.h>

class Test
{
 int testint;
 void (Test::*PrintPtr)();
 public:
   Test(int in_testint)
     {
     testint=in_testint;
     }
   void SetMode(int mode)
     {
     if(mode==0) PrintPtr=PrintMode0; <-(1)first warning
     if(mode==1) PrintPtr=PrintMode1; <-(2)second warning
     }
   void PrintMode0()
     {
     printf("mode 0: %d\n", testint);
     }
   void PrintMode1()
     {
     printf("mode 1: %d\n", testint);
     }
   void Print()
     {
     PrintPtr(); <-(3) here i get the error
     }
};

int main()
{
 Test test1(10);

 test1.SetMode(0);
 test1.Print();  //This should print 10
 return 0;
}