Here's the code:



==============================================

#include <iostream>
using namespace std;

auto test = [] () {
	return [] (istream &ris) -> istream& {
		return ris;
	};
};

int main() {
	cin >> test();
	return 0;
}

==============================================



I'm not sure whether this code is correct but it just crashes g++ 4.5.0.
I'm compiling with:

g++ -std=c++0x -pedantic -Wall Test.cpp



I'm doing code like that because I wish to implement a custom parameterized I/O manipulator without using implementation-specific types such as smanip and stuff.
Note that it doesn't crash if I just call test() without using the result on cin, thus I think the problem is matching the returned lambda against the version of operator >> that takes a function as an argument.

PS: I don't think there's any difference but I'm using MinGW and I'm currently unable to test on Linux with real g++.