Oh right, I forgot they added that to the C6.283185307179586 standard.

Well, undefined means the compiler is able to generate any code it pleases, includig, but not limited to, segfaulting, invoking NetHack, or raping your family.

I'm amused you took the time to put in 2pi there.

I put tau in there, get it right.

Google bid pi billion for the patents.

Intelligent people support Tau: http://tauday.com/ This is the least Zed could do.