如何将视觉c ++中的字符串字面量转换为unsigned char数组 [英] How to convert a string literal to unsigned char array in visual c++

问题描述

如何将字符串转换为unsigned char在c ++ ...

How to convert a string to Unsigned char in c++...

我有，

unsigned char m_Test[8];

我想分配一个字符串Hello world

I want to assign a string "Hello world" to m_Test.

如何处理？

推荐答案

首先，数组必须至少足够容纳字符串：

Firstly, the array has to be at least big enough to hold the string:

 unsigned char m_Test[20];

那么你使用strcpy。您需要转换第一个参数以避免警告：

then you use strcpy. You need to cast the first parameter to avoid a warning:

 strcpy( (char*) m_Test, "Hello World" );

或者如果你想成为一个C ++纯粹主义者：

Or if you want to be a C++ purist:

 strcpy( static_cast <char*>( m_Test ), "Hello World" );

如果您要初始化字符串而不是分配字符串，您还可以说：

If you want to initialise the string rather than assign it, you could also say:

 unsigned char m_Test[20] = "Hello World";

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