我在使用C ++中的位字段时遇到问题 [英] I am having a problem using bit fields in C++

问题描述

我有一个问题，我需要在C和C＃之间进行通信，我需要将数据从C格式发送到C＃并相应地在C＃中打印图形。

i只能使用4侧面的位（前三角形）和（x，y）的4,4位。然后在C＃中检索它们，然后相应地绘制一个三角形。问题是，仅使用4位我只能传输0-15个数字，但是，用户可以自由输入0到32767之间的数字。我将如何将存储在4位中的数字的限制从16增加到32768以及那么如何在c＃中检索这些数据呢。即时通讯使用socket进行进程间通信。



我尝试过：



套接字已用于进程间通信和位字段用于初始分配变量为Short用于存储位

i have a problem in which i needs to communicate between C and C# and i need to send data from C in bit format to C# and print Graphics in C# accordingly.
i have to use only 4 bits for side(ex triangle) and 4,4 bits for (x,y).then retrieve them in C# and then accordingly draw a triangle. Problem is that, using 4 bits only i ll be able to transfer only 0-15 numbers but, the user is free to enter numbers from 0 to 32767. How will i increase the limit of numbers stored in 4 bits from 16 to 32768 and how to retrieve this data in c# then. i m using socket for inter-process communication.

What I have tried:

sockets have been used for inter-process communication and bit fields for initial assignment of variable to Short for storing bits

推荐答案

您不能存储任何大于15的值四位：在4位数字中只有16种不同的0和1组合：

You cannot store any value larger than 15 in four bits: there are only 16 different combinations of 0 and 1 in a four bit number:

0000   0
0001   1
0010   2
0011   3
0100   4
0101   5
0110   6
0111   7
1000   8
1001   9
1010  10
1011  11
1100  12
1101  13
1110  14
1111  15

要获得更大的价值，您需要更多的位数。

要存储介于0和32767之间的值，您需要至少15位。

这是一个数学定律，而不是计算法！

To get any larger value, you need more bits.
To store values between 0 and 32767 inclusive, you need a minimum of 15 bits.
This is a law of mathematics, not computing!

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