#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "utlist.h"
#define BUFLEN 20
typedef struct el {
char bname[BUFLEN];
struct el *next, *prev;
} el;
int namecmp(el *a, el *b) {
return strcmp(a->bname,b->bname);
}
el *head = NULL; /* important- initialize to NULL! */
int main(int argc, char *argv[]) {
el *name, *elt, *tmp, etmp;
char linebuf[BUFLEN];
int count;
FILE *file;
if ( (file = fopen( "test11.dat", "r" )) == NULL ) {
perror("can't open: ");
exit(-1);
}
while (fgets(linebuf,BUFLEN,file) != NULL) {
if ( (name = (el*)malloc(sizeof(el))) == NULL) exit(-1);
strncpy(name->bname,linebuf,BUFLEN);
DL_APPEND(head, name);
}
DL_SORT(head, namecmp);
DL_FOREACH(head,elt) printf("%s", elt->bname);
DL_COUNT(head, elt, count);
printf("%d number of elements in list\n", count);
memcpy(&etmp.bname, "WES\n", 5);
DL_SEARCH(head,elt,&etmp,namecmp);
if (elt) printf("found %s\n", elt->bname);
/* now delete each element, use the safe iterator */
DL_FOREACH_SAFE(head,elt,tmp) {
DL_DELETE(head,elt);
}
fclose(file);
return 0;
}
//cpp/8957