如何从字节数组转换为Word数组在C [英] How to convert from byte array to word array in c

问题描述

使用C，我如下定义了一个字节和字：

Using c, I have defined a byte and word as follows:

typedef unsigned char byte;
typedef union {
    byte b[4];
    unsigned long w;
} word;

这让我很容易去从词字节，但是我不知道的一个好办法，走另一条路。是否有可能做这样的事从字节*强制转换为WORD *或者我必须坚持反复复制字节的话吗？

This allows me to easy go from words to bytes, but I'm not sure of a good way to go the other way. Is it possible to do something like cast from byte* to word* or do I have to stick with iteratively copying bytes to words?

推荐答案

一个关于C是你可以采取一个空指针并将其转换为任何伟大而可怕的事情。只要你知道自己在做什么工作，但要在习惯得到不是。

One of the great and terrible things about c is you can take a void pointer and cast it to anything. As long as you know what you are doing it will work, but not something you want to get in the habit of.

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