C ++在字节向量和wstring之间转换 [英] C++ convert between Byte vector and wstring

问题描述

我需要以低级别处理宽字符串中存储的数据。我可以使用以下方法转换 字节的向量：

I need to process the data stored in wide strings at a low level. I am able to convert to a vector of Bytes with the following method:

typedef unsigned char Byte;

wstring mystring = L"my wide string";
Byte const *pointer = reinterpret_cast<Byte const*>(&mystring[0]);
size_t size = mystring.size() * sizeof(mystring.front());
vector<Byte> byteVector(pointer, pointer + size);

但是，我遇到了麻烦，我对铸造不是很熟悉。如何将的的字节转换为 wstring

However, I am having trouble going the other way; I am not very familiar with casting. How do I convert a vector of Bytes to a wstring?

推荐答案

您可以这样做

mystring.assign（reinterpret_cast< ; wstring :: const_pointer>（& byteVector [0]），byteVector.size（）/ sizeof（wstring :: value_type））;

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