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关于结构体指针函数的返回值传递给结构体指针的理解
2022-07-28 10:32:00 【打蛋王子】
假设存在下面定义
struct class *class1; /* 类 */
class1 = class_create(THIS_MODULE, IMX6UIRQ_NAME);//struct class *class_create (struct module *owner, const char *name)class_create(); 函数返回值是一个指向class类的变量的指针,其中class1也是一个指向class类的变量的指针,相当于两个同类指针之间的单向数据传递,最后结果是它们指向同一个类,即class_create创造出来的类。
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