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#include <stdio.h>
#include "utlist.h"
typedef struct el {
int id;
struct el *next, *prev;
} el;
int main()
{
int i;
el *head = NULL;
el els[10], *e, *tmp, *tmp2;
for(i=0; i<10; i++) {
els[i].id=(int)'a'+i;
}
/* test CDL macros */
printf("CDL macros\n");
CDL_PREPEND(head,&els[0]);
CDL_PREPEND(head,&els[1]);
CDL_PREPEND(head,&els[2]);
CDL_FOREACH(head,e) {
printf("%c ", e->id);
}
/* point head to head->next */
CDL_FOREACH_SAFE(head,e,tmp,tmp2) {
printf("deleting %c ", e->id);
CDL_DELETE(head,e);
}
printf("\n");
if (head != NULL) {
printf("non-null head\n");
}
/* test DL macros */
printf("DL macros\n");
DL_APPEND(head,&els[0]);
DL_APPEND(head,&els[1]);
DL_APPEND(head,&els[2]);
DL_FOREACH(head,e) {
printf("%c ", e->id);
}
DL_FOREACH_SAFE(head,e,tmp) {
printf("deleting %c ", e->id);
DL_DELETE(head,e);
}
printf("\n");
if (head != NULL) {
printf("non-null head\n");
}
/* test LL macros */
printf("LL macros\n");
LL_APPEND(head,&els[0]);
LL_APPEND(head,&els[1]);
LL_APPEND(head,&els[2]);
LL_FOREACH(head,e) {
printf("%c ", e->id);
}
LL_FOREACH_SAFE(head,e,tmp) {
printf("deleting %c ", e->id);
LL_DELETE(head,e);
}
printf("\n");
if (head != NULL) {
printf("non-null head\n");
}
return 0;
}
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