void
main() 
{
    for (int i=0; 1; i++) 
    {
        cout << "i = " << i << endl ;
        sleep (10) ;
    }
   
    return ;
 }

$dbx -a 60622
Waiting to attach to process 60622 ...
Successfully attached to db.
Type 'help' for help.
reading symbolic information ...
stopped in _p_nsleep at 0xd0013b54 ($t1)
0xd0013b54 (_p_nsleep+0x10) 80410014        lwz   r2,0x14(r1)
(dbx) where
_p_nsleep(??, ??) at 0xd0013b54
raise.nsleep(??, ??) at 0xd018776c
sleep(??) at 0xd01e2578
main(), line 22 in "db.cpp"
(dbx) print i
4 
(dbx) printf("hello world")
printf("hello world")
^ unrecognized command
(dbx) print ("hello world");
hello world 
(dbx) file
db.cpp
(dbx) ?i
no match
(dbx) /i
    1   #include <iostream.h>
(dbx) next
stopped in main at line 19 in file "db.cpp" ($t1)
   19       for (int i=0; 1; i++) 
(dbx) next
stopped in main at line 21 in file "db.cpp" ($t1)
   21           cout << "i = " << i << endl ;
(dbx) next
stopped in main at line 22 in file "db.cpp" ($t1)
   22           sleep (10) ;
(dbx) next
stopped in main at line 19 in file "db.cpp" ($t1)
   19       for (int i=0; 1; i++) 
(dbx) print i
5 
(dbx) help
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Type "help <command>" or "help <topic>" for help on a command or topic.
(dbx) quit