[Mingw-users] g++:cout won't print integers at runtime

[Janse v. V. T, M. <161...@su...> <161...@su...>]

I don't know what I did exactly but my MinGW is not working properly.
This code:

#include<iostream>

int main()
{
std::cout<<5;
return 0;
}

Compiles and makes an executable, but when I run it it crashes.
Just a dialog that says this program has stopped working

This code however:

#include<iostream>
int main()
{
std::cout<<'5';
return 0;
}

Does work, and prints 5 as expected.
Another symptom is that I can't open files with fstream:

std::ofstream q("new.txt");

compiles an executable that crashes exactly the same way.

I'm using 64-bit windows7.
I recently installed(and uninstalled) mono for C#
I've tried reinstalling all the mingw packages

I compile with the following command prompt lines:

g++ -c magic.cpp -o magic.o
g++ magic.o -o magic.exe