--- In [email protected], WLJiang WLJiang <iamwlji...@...> wrote: > > Wellï¼ #include <stdio.h> haven't any effect,it can delete, > and this Statement if(alist == NULL) not have anyquestion. > Because in head file already define NULL > > But you does not make clear how to modified.
Don't use NULL in C++. Use plain 0 as a null pointer constant... if (alist == 0) ... -- Peter
