Not working in Windows

[bayasdev]

Windows 10 LTSC 2019
TDM-GCC 9.2

[LinoBigatti]

I think this relies on POSIX printf.

[carlini]

Yeah, I tested this on most variants of Linux I could come across and OSX. It wouldn't surprise me if it wasn't compatible with Windows.

From your output, it looks like it's the fact that I use %N$ to reduce the number of necessary arguments to printf. This is something that is also nonstandard. The printf implementation might decide to just treat this as a raw string to print. There might be some way to get this behavior on Windows---but I don't know. If not, one "fix" would be to duplicate the arguments to printf so that it can just use the standard %s and read the next argument.

(It's also possible that this won't work for another reason: the macro-expanded format string is ~100,000 bytes long, which significantly exceeds the maximum that the C standard says compilers must allow. I think that's 4095 bytes for c99.)