再來看C++,由於STL已內建一些容器,所以不需再重新實作linked list,有兩個選擇:std::vector或者std::list。std::vector的優點是non-sequential access超快,新增資料於後端超快,但insert和erase任意資料則超慢;std::list則剛好相反,insert和erase速度超快,但non-sequential access超慢,由於本例只有新增與non-sequentia...
int LinkedList_Length(LinkedList* list) { if (list != NULL) { return list->length; } } int LinkedList_Insert(LinkedList* list, LinkedListNode* node, int pos) { if (list == NULL || pos < 0 || node == NULL) { return -1; fprintf(stderr,"Wrong argument.\n"); } LinkedListNode*...
2.2 代码实现 list.h #ifndef LIST_H#define LIST_H#include<iostream>usingnamespacestd;typedefstructdata{stringName;intValue;}Item;typedefstructnode{Itemm_Value;node*m_pNext;}Node;typedefNode*ListNode;voidInitList(ListNode*pList);unsignedintListNodeCnt(constListNode*pList);voidAddListNode(Itemitem,List...
1voidLinkedList::Delete(intx)2{3ListNode * current = first, *previous =0;45while(current !=0&& current->data !=x) {6previous =current;7current = current->next;8}910if(current ==0) {11std::cout <<"There is no"<< x <<"in list.\n";12}13elseif(current ==first) {14first =...
usingnamespacestd; classNode { public: intdata; Node *next; }; voidpush(Node** head_ref, intnew_data) { Node* new_node = newNode(); new_node->data = new_data; new_node->next = (*head_ref); (*head_ref) = new_node; ...
std::atomic<int> is not lock-free std::atomic_flag 是 C++ 中的一个原子布尔类型,它用于实现原子锁操作。 std::atomic_flag 默认是清除状态(false)。可以使用 ATOMIC_FLAG_INIT 宏进行初始化,例如:std::atomic_flag flag = ATOMIC_FLAG_INIT; std::atomic_flag 提供了两个成员函数 test_and_set()...
intmain(){structNode* head = NULL;append(&head, 6);push(&head, 7);push(&head, 1);append(&head, 4);insertAfter(head->next, 8);printf("\n Created Linked list is: ");printList(head);return0;} 输出: 创建的链接列表为:1 7 8 6 4...
{ SQLHENV hEnv = NULL; SQLHDBC hDbc = NULL; SQLHSTMT hStmt = NULL; WCHAR* pwszConnStr; WCHAR wszInput[SQL_QUERY_SIZE]; // Allocate an environment if (SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &hEnv) == SQL_ERROR) { fwprintf(stderr, L"Unable to allocate an environment ...
(), pwszConnStr, SQL_NTS, NULL, 0, NULL, SQL_DRIVER_COMPLETE)); fwprintf(stderr, L"Connected!\n"); TRYODBC(hDbc, SQL_HANDLE_DBC, SQLAllocHandle(SQL_HANDLE_STMT, hDbc, &hStmt)); wprintf(L"Enter SQL commands, type (control)Z to exit\nSQL COMMAND>"); // Loop to get input ...
(), pwszConnStr, SQL_NTS, NULL, 0, NULL, SQL_DRIVER_COMPLETE)); fwprintf(stderr, L"Connected!\n"); TRYODBC(hDbc, SQL_HANDLE_DBC, SQLAllocHandle(SQL_HANDLE_STMT, hDbc, &hStmt)); wprintf(L"Enter SQL commands, type (control)Z to exit\nSQL COMMAND>"); // Loop to get input ...