05-20-2013
Quote:
Originally Posted by
migurus
I have no system available to test your code.
For your Q.1 I'd use "struct numlist *numbers" in main and change make_list to return pointer to structure.
The Q.2 is not clear to me, what does not look right to you?
Q.1: ok, thanks. y
Q.2: Inside of the function make_list() i declare a struct num_list tmp, but i don't allocate any memory. I allocate memory to the list, depending how much elements it will contain. Will the struct num_list tmp have enough memory to store the list, no matter how much elements the list contains? (The question reveals that memory allocation is not always clear to me).
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ADDPTYPE(3) MBK UTILITY FUNCTIONS ADDPTYPE(3)
NAME
addptype - create a ptype and add it to a ptype_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"
ptype_list *addptype(pthead,type,ptdata)
ptype_list *pthead;
void *ptdata;
long type;
PARAMETERS
pthead Pointer to a ptype list
type Flag indicating the pointer owner
ptdata Generic pointer to any kind of information
DESCRIPTION
addptype creates a new ptype element and adds it to the front of the list pointed to by pthead, and becomes itself the list head.
The ptype_lists are mosty used to create lists of homogeneous elements in mbk, but also for trees, graphs, and so on.
The type argument indicates the pointer type, at the C type meaning, for its owner.
The types allow to access the pointers with adequat cast, and for example to share informations in the USER fields of mbk structures.
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 ptype structure. For details on the structure, see ptype(3).
RETURN VALUE
addptype returns a pointer to the new head of list.
EXAMPLE
#include "mut.h"
#include "mph.h"
void corner(ptfig, name)
phfig_list *ptfig;
char *name;
{
phins_list *i = getphins(ptfig, name);
num_list *ptnum;
phfig_list *model;
model = getphfig(i->FIGNAME);
ptnum = addnum((num_list *)NULL, model->X2 - model->X1);
ptnum = addnum(ptnum, model->Y2 - model->Y1);
i->USER = addptype(i->USER, (long)PLACEABOX, (void *)ptnum);
}
SEE ALSO
mbk(1), ptype(3), freeptype(3), getptype(3), delptype(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 ADDPTYPE(3)