c语言中结构体指针的强制类型转换
enum kind {E_INT, E_ADD, E_TIMES}; struct Exp { enum Exp_Kind_tkind; } struct Exp_Add{
enum Exp_Kind_tkind;
struct Exp *left;
struct Exp *right;
}
https://blog.csdn.net/flyqwang/article/details/6420228
enum kind {E_INT, E_ADD, E_TIMES}; struct Exp { enum Exp_Kind_tkind; } struct Exp_Add{
enum Exp_Kind_tkind;
struct Exp *left;
struct Exp *right;
}
https://blog.csdn.net/flyqwang/article/details/6420228