C语言里如何定义任意bit长度的类型来着

答案:2 悬赏:50 手机版

解决时间 2021-03-27 16:43

提问者网友：泪痣哥哥
2021-03-27 00:26

最佳答案

五星知识达人网友：woshuo
2019-09-04 06:42

下面就是一个例子，定义了一个结构体变量ch，包含多个位域。
struct{
unsigned con: 8;
unsigned forecolor: 4;
unsigned bgcolor: 3;
unsigned blink: 1;
}ch;

全部回答

1楼网友：低血压的长颈鹿
2020-11-06 19:21

c语言中bit类型是“位”数据类型，一般在嵌入式软件中应用较多，用于io口的控制，可以是单独申明位变量，也可以申请位结构数据类型，比如： struct st_flash { union { unsigned char byte; struct { unsigned char fwe :1; unsigned char swe1:1; unsigned char esu1:1; unsigned char psu1:1; unsigned char ev1 :1; unsigned char pv1 :1; unsigned char e1 :1; unsigned char p1 :1; } bit; } flmcr1; union { unsigned char byte; struct { unsigned char fler:1; unsigned char swe2:1; unsigned char esu2:1; unsigned char psu2:1; unsigned char ev2 :1; unsigned char pv2 :1; unsigned char e2 :1; unsigned char p2 :1; } bit; } flmcr2; union { unsigned char byte; struct { unsigned char eb7:1; unsigned char eb6:1; unsigned char eb5:1; unsigned char eb4:1; unsigned char eb3:1; unsigned char eb2:1; unsigned char eb1:1; unsigned char eb0:1; } bit; } ebr1; union { unsigned char byte; struct { unsigned char eb15:1; unsigned char eb14:1; unsigned char eb13:1; unsigned char eb12:1; unsigned char eb11:1; unsigned char eb10:1; unsigned char eb9 :1; unsigned char eb8 :1; } bit; } ebr2; };

我要举报

如以上回答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！

点此我要举报以上问答信息