minix man page for addchain

ADDCHAIN(3)						       MBK UTILITY FUNCTIONS						       ADDCHAIN(3)

NAME

       addchain - create a chain and add it to a list

ORIGIN

       This  software  belongs	to  the  ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in
       Paris, France.

       Web : http://asim.lip6.fr/recherche/alliance/
       E-mail : alliance-users@asim.lip6.fr

SYNOPSYS

       #include "mut.h"
       chain_list *addchain(pthead, ptdata)
       chain_list *pthead;
       void *ptdata;

PARAMETERS

       pthead		   Pointer to a chain_list

       ptdata		   Generic pointer to any kind of information

DESCRIPTION

       addchain creates a new chain element and adds it to the front of the list pointed to by pthead, and becomes itself the list head.
       The chain_lists are mosty used to create temporary lists of homogeneous elements, for binary trees, and so on.
       The ptdata points to any kind of list or may itself be a value, if proper cast is performed at compilation time, and fills the  DATA  field
       of the chain structure.	For details on the structure, see chain(3).

RETURN VALUE

       addchain returns a pointer to the new head of list.

EXAMPLE

       #include "mut.h"
       #include "mlo.h"
       chain_list *get_external_connectors(ptfig)
       lofig_list *ptfig;
       {
       locon_list *pt = ptfig->LOCON;
       chain_list *c = NULL; /* initialized for regularity */
	  while (pt) {
	     if (pt->TYPE == EXTERNAL)
		c = addchain(c, (void *)pt)
	     pt = pt->NEXT;
	  }
	  return c;
       }

SEE ALSO

       mbk(1), chain(3), freechain(3), delchain(3).

BUG REPORT

       This tool is under development at the ASIM department of the LIP6 laboratory.
       We need your feedback to improve documentation and tools.

ASIM
/LIP6							  October 1, 1997						       ADDCHAIN(3)