https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64677
--- Comment #8 from Sanjay Patel <spatel at rotateright dot com> --- (In reply to Andrew Pinski from comment #7) > Can you try this under Linux too, just to double check there? Wow, that other bug shows that there are a lot of variables here. I don't know what to make of this: First, I'm just trying g++ 4.8.2 on Ubuntu 14.04 because that's what I have available at the moment. It seems I don't need the -std=c++11 flag as I do on OS X? But using that flag changes the result at -O1! $ g++ -O0 complex_div.cpp ; ./a.out -0.0083223357032193145 (does not match Wolfram) $ g++ -O1 complex_div.cpp ; ./a.out -0.0083223357032193145 (does not match Wolfram) $ g++ -O0 complex_div.cpp -std=c++11 ; ./a.out -0.0083223357032193145 (does not match Wolfram) $ g++ -O1 complex_div.cpp -std=c++11 ; ./a.out -0.0083223357032193128 (matches Wolfram...but why is this different?!)
