将字符串转换为wchar_t（宽字符）C ++

Question

我想知道如何将string str = "whatever"转换为wchar_t，以便将字符串存储为wchar_t chResponse[] = ...(converted from string)..

我正在尝试以下代码：

string str = "whatever";
std::wstring_convert<std::codecvt_utf8<wchar_t>> utf8conv;
auto w_result = utf8conv.from_bytes(str); // convert utf8 to wchar_t
wchar_t chResponse[] = w_result;

它给了我这个错误：

error C2075: 'chResponse' : array initialization needs curly braces