Memory corruption when calling boost::filesystem::exists() from static initializer with Unicode paths

[memger@…]

Assume we have a class MyClass with the constructor as shown below. Now, if we create a static instance of MyClass (or have some other mechanism to execute this code at static initialization time), then this code will create an access violation exception when exists() is called.

MyClass::MyClass() {
	boost::filesystem::path path(L"C:\\Windows");
	path /= boost::filesystem::path(L"notepad.exe");
	if (!boost::filesystem::exists(path)) {
		std::cout << "notepad.exe doesn't exist!" << std::endl;
	}
}

The code was tested on Windows 7 X64 SP1 with VS 2008 SP1 with boost 1.49.