1
// 2结构通过指针绑链表依赖于其他的B是关系回到A
struct A_cust // customer information, a double-linked list with another pointer
{
char cust_info [20]; // as an example
A_cust *prevCust; // prev customer record
A_cust *nextCust; // next customer record
B_tran *point_to_B; // to the list of transaction records
};
struct B_tran // transaction records, a double-linked list with another pointer
{
char cust_tran [20]; // as an example
B_tran *prevTran; // prev customer transaction
B_tran *nextCust; // next customer transaction
A_cust *point_to_A // to the list of customer records
};
编译器不知道“B_tran”,当它解析“A_cust” 如果我把定义“B_tran”的第一则编译器根本不知道什么是“A_cust”是
任何想法,欧内斯特
这就是所谓的向前声明。 – gcochard