如何将int转换为wstring？

Question

我想将整数值(int)转换为std :: wstring.
做这个的最好方式是什么？
由于某些原因,我不能使用to_wstring.

任何帮助,将不胜感激.

Answer 1

使用std::wostringstream:

int i = 10;
std::wostringstream ws;
ws << i;
const std::wstring s(ws.str());

或者,boost::lexical_cast:

#include <boost\lexical_cast.hpp>
const std::wstring s(boost::lexical_cast<std::wstring>(10));

要转换回来,请使用wistringstream:

std::wistringstream win(L"10");
int x;
if (win >> x && win.eof())
{
    // The eof ensures all stream was processed and
    // prevents acccepting "10abc" as valid ints.
}