by using swap function is pointer to a pointer used then?? On Thu, Jul 14, 2011 at 1:36 AM, Piyush Kapoor <[email protected]> wrote:
> u need a pointer to a pointer to swap the pointers... > > > On Thu, Jul 14, 2011 at 1:21 AM, Anika Jain <[email protected]>wrote: > >> can some body tell me that: >> >> void swap(node *p,node *q) >> { >> node *t; >> t=p; >> p=q; >> q=t; >> } >> >> void mirror(node *p) >> { >> if (p==NULL) >> return; >> >> else >> { mirror(p->r); >> mirror(p->l); >> swap(p->r,p->l); >> } >> } >> >> in this the swapping is occuring but if i do : >> >> void mirror(node *p) >> { >> if (p==NULL) >> return; >> >> else >> { mirror(p->r); >> mirror(p->l); >> node *t; >> t=p->r; >> p->r=p->l; >> p->l=t; >> } >> } >> >> >> here it is not getting done .. why?? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > > > -- > *Regards,* > *Piyush Kapoor,* > *CSE-IT-BHU* > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
