<p>From managed C++, I am calling an unmanaged C++ method which returns a double. How can I convert this double into a managed string?</p>

C++ is definitely not my strongest skillset.  Misread the question, but this should convert to a std::string, not exactly what you are looking for though, but leaving it since it was the original post....
```
```
double d = 123.45;
std::ostringstream oss;
oss << d;
std::string s = oss.str();
```
```
This should convert to a managed string however..
```
```
double d = 123.45
String^ s = System::Convert::ToString(d);
```
```