C语言基于面向对象的编程方法示例
原型声明:
typedef struct _OBJECT_OPS {
int (*get_name)(char *param);
int (*set_name)(const char *param);
int (*dump)(int level);
} OBJECT_OPS;
原型初始化:
OBJECT_OPS myself = {
.get_name = get_my_name,
.set_name = set_my_name,
.dump = my_dump,
};
OBJECTS_OPT *p_platform_ops = &myself;
调用:
#define PLATFORM_CALL(func, ...) \
((p_platform_ops && p_platform_ops->func) ? p_platform_ops->func(__VA_ARGS__) : false)
extern OBJECTS_OPT *p_platform_ops;
int general_get_name(char *param)
{
return PLATFORM_CALL(get_name, param);
}
此时,上层直接调用general_get_name
即可。
请记得给general_get_name
函数声明。