C类范围
发布时间:2020-12-16 09:26:08 所属栏目:百科 来源:网络整理
导读:我是从Objective C来到C并遇到问题…… 这有效: – function1(char *filePath) { Box box(filePath); // construct/create a box using filePath // can use box in this function and destructor is called when function exits} 但是我需要这样的东西,其
我是从Objective C来到C并遇到问题……
这有效: – function1(char *filePath) { Box box(filePath); // construct/create a box using filePath // can use box in this function and destructor is called when function exits } 但是我需要这样的东西,其中function1和function2是异步调用的. Box *boxPool[25]; // a pool of 25 box pointers function1(int item,char *filePath) { boxPool[item](filePath); // construct/create a box,store a pointer in boxPool that is retained on exit } function2(int item) { // use the box from boxPool[item] and then destruct/release it on exit } 解决方法
也许:
void function1(int item,char *filePath) { boxPool[item] = new Box(filePath); } void function2(int item) { //use boxPool[item] delete boxPool[item]; boxPool[item] = NULL; } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |