reverse.3alc - Man Page
reverse a list of chained elements
Synopsis
#include "mut.h" chain_list ∗reverse(ptold) chain_list ∗ptold;
Parameter
- ptold
Pointer to a chain_list to be reversed
Description
The reverse function allows to reverse the order of the elements of a chain_list. It means that the last element becomes the first one, the one before the last one the second one, and so on.
- remark :
all mbk structures have for first field the NEXT field, so, with appropriate cast, one can reverse any mbk list. Let's notice that nothing in the C language description demands a structure to be defined in memory the same way its members are defined in C. But all compiler do it this way now a day. Let's hope it will continue!
Return Value
reverse returns a pointer to the head of the reversed list.
Example
#include "mut.h" void reverse_con(p) lofig_list ∗p; { p->LOCON = (locon_list ∗)reverse((chain_list ∗)p->LOCON); }
See Also
mbk(1), chain(3).
Referenced By
October 1, 1997 ASIM/LIP6 MBK UTILITY FUNCTIONS