typedefstruct{intikey;/* key,这里使用ikey是做索引,区别key值 */charname[10];/* value */UT_hash_handlehh;/* makes this structure hashable */}HashTable;HashTable*pKVPair,*pTmp;// pTmp 类似于for循环的i值HASH_ITER(hh,pHashTable,pKVPair,pTmp){/* 遍历操作 */printf("key [%d]: name [...
HASH_ITER是一个宏定义,程序执行时被替换为一个循环。 void delete_all() { struct my_struct *current_user, *tmp; HASH_ITER(hh, users, current_user, tmp) { HASH_DEL(users,current_user); /* delete; users advances to next */ free(current_user); /* optional- if you want to fr...
HASH_ADD_KEYPTR( hh, users, s->name,strlen(s->name), s ); } HASH_FIND_STR( users,"betty", s);if(s)printf("betty's id is %d ", s->id); HASH_ITER(hh, users, s, tmp) { HASH_DEL(users, s);free(s); }return0; } 3.3 指针键值 登录后复制#include#include#include"uthash...
HASH_ITER是一个宏定义,程序执行时被替换为一个循环。 void delete_all() { struct my_struct *current_user, *tmp; HASH_ITER(hh, users, current_user, tmp) { HASH_DEL(users,current_user); /* delete; users advances to next */ ...
HASH_ITER(hh_id, utests[i]->uthash_by_id, cc, cc_tmp){ printf("%d\n", cc->id); printf("%s\n", cc->sock); }//与上段代码作用相同//HASH_ITER(hh_sock, utests[i]->uthash_by_sock, cc, cc_tmp){//printf("%d\n", cc->id);//printf("%s\n", cc->sock);//} ...
HASH_ITER是一个宏定义,程序执行时被替换为一个循环。 代码语言:javascript 复制 voiddelete_all(){struct my_struct*current_user,*tmp;HASH_ITER(hh,users,current_user,tmp){HASH_DEL(users,current_user);/* delete; users advances to next */free(current_user);/* optional- if you want to...
(struct my_struct));s->id=i;snprintf(s->name,10,"user%d",i);HASH_ADD_INT(users,id,s);}// 遍历元素struct my_struct*current_user,*tmp;HASH_ITER(hh,users,current_user,tmp){printf("id=%d,name=%s\n",current_user->id,current_user->name);// 删除元素HASH_DEL(users,current_user)...
HASH_ITER是一个宏定义,程序执行时被替换为一个循环。 void delete_all() { struct my_struct *current_user, *tmp; HASH_ITER(hh, users, current_user, tmp) { HASH_DEL(users,current_user); free(current_user); }} 1. 2.7 删除哈希表所有元素 ...
HASH_DEL(head, user); // 清空hash表,利用hash中的迭代器进行删除和打印 voidDeleteAll(structhash_entry*head){structhash_entry*currentUser,*tmp;HASH_ITER(hh,head,currentUser,tmp){printf("id:%d,name:%s\n",tmp->id,tmp->name);HASH_DEL(head,currentUser);/* delete; head advances to next ...
然后我们使用HASH_FIND_INT宏在散列表中查找具有这个键值的元素。若查找成功,指针变量result将指向对应的User结构体;否则,result将为NULL。 另外,使用HASH_ITER宏可以在散列表中遍历所有的键值对。以下是一个示例代码: c User *current_user; User *temp_user; HASH_ITER(hh, users, current_user, temp_user) ...