标签:des os io ar for 代码 on c amp
void WStrToUTF8(std::string& dest, const std::wstring& src){
dest.clear();
for (size_t i = 0; i < src.size(); i++){
wchar_t w = src[i];
if (w <= 0x7f)
dest.push_back((char)w);
else if (w <= 0x7ff)
{
dest.push_back(0xc0 | ((w >> 6)& 0x1f));
dest.push_back(0x80| (w & 0x3f));
}
else if (w <= 0xffff)
{
dest.push_back(0xe0 | ((w >> 12)& 0x0f));
dest.push_back(0x80| ((w >> 6) & 0x3f));
dest.push_back(0x80| (w & 0x3f));
}
else if (sizeof(wchar_t) > 2 && w <= 0x10ffff)
{
dest.push_back(0xf0 | ((w >> 18)& 0x07)); // wchar_t 4-bytes situation
dest.push_back(0x80| ((w >> 12) & 0x3f));
dest.push_back(0x80| ((w >> 6) & 0x3f));
dest.push_back(0x80| (w & 0x3f));
}
else
dest.push_back(‘?‘);
}
}
std::string WStrToUTF8(const std::wstring& str)
{
std::string result;
WStrToUTF8(result, str);
return result;
}
std::string timeStr1 = WStrToUTF8(L"%d天%d小时");
标签:des os io ar for 代码 on c amp
原文地址:http://my.oschina.net/ffs/blog/311788