std::endl crashes Windows 8, compiled using MinGW

Question

I have 3 computers, two of which use Windows 8. Using the latest version of MinGW\'s g++ (4.8.1-4) my hello world program freezes whenever I compile and run on the Windows 8

Answer 1

I had the same issue and found after a long painful search that I had multiple versions of the mingw provided libstdc++-6.dll on my computer. One was part of the mingw installation the others were part of other installation packages (gnuplot and GIMP). As I had gnuplot in my PATH the compiled mingw exe it would use an older, incompatible version of this dll and crash with the described symptoms. I can, therefore, confirm Dietmar Kühl's suspicion. As suggested above linking the library statically obviously helps in this case as the library functions are included in the exe at compile time.

Answer 2

In the second instance, the '\n' should cause an output flush in any case, although in Windows I believe console output is immediate (or perhaps automatic after a short timeout) in any case without an explicit flush.

I suggest the following experiments:

1) See if it is specific to the C++ library by using the C library (in MinGW Microsoft's C runtime is used rather than glibc):

#include <stdio.h>
int main()
{
    printf( "Hello, World!\n" ) ;
    return 0;
}

2) Eliminate the exit code by:

int main()
{
    return 0;
}

3) No newline at all:

#include <iostream>
int main()
{
    std::cout << "Hello, World! ;
    return 0;
}

4) Try different compiler options such as optimisation levels, or -fno-builtin for example, or as suggested here: -static-libgcc -static-libstdc++ (although I doubt ``-static-libgcc` will itself have any effect since MinGW uses Microsoft's C runtime DLL and the static library is only available with Microsoft's tools).