Is there a standard C++ equivalent of C#'s Vector3?

Question

Just wondering if C++ has a standard equivalent of the Vector2/3/4 (structures I think?) in C#?

Edit: For clarification a XNA C# Vector2/3/4 "structures" (I'm not entirely sure what they are) basically hold 2, 3, or 4 float values like a struct in C++ defined as:

struct Vector3
{
    float x, y, z;
};

I've been basically using just that code in C++, but I was hoping for a standard alternative and was unable to find one.

Answer 1

The Vector3 struct in C# is from XNA, not the base class libraries.

The equivelent in C++ would be to use XMFLOAT3.

Answer 2

Nothing standard that I know of, but here's some code to get you started

http://www.flipcode.com/archives/Faster_Vector_Math_Using_Templates.shtml

If you are using C++/CLI and targeting Windows and .NET, you can use Vector2, etc.