#include #include #include #include "utlist.h" #define BUFLEN 20 typedef struct el { char bname[BUFLEN]; struct el *next, *prev;} el; int namecm<strong>本文来源gaodai#ma#com搞@@代~&码网</strong>p(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;}
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转载请注明原文链接：C语言使用utlist实现的双向链表
转载请注明原文链接：C语言使用utlist实现的双向链表
