std::string going out of scope

[peterworth]

i'm sure the whole stl being used in a dll thing has been discussed a lot already, but i always seem to have 1 specific problem, as demonstrated by this code:

#include "stdafx.h"
#include "MyLibrary.h"

int main(int argc, char* argv[])
{
	Node node;
	node.x = 900;
	node.y = 955;
	node.description = "node 1";

	return 0;
}

MyLibrary is a dll project, and the MyLibrary header includes this definition od Node:

class ITINARARYFINDA_API Node {
public:
	float x;
	float y;
	std::string description;
};

the problem is, that there is a debug assertion failed error on expression _CrtIsValidHeapPointer(pUserData) at runtime, when the main function returns. i'm fairly sure it occurs when the std::string goes out of scope, since i've had similar problems before.

am i doing something wrong here?