Comment by saagarjha

Well, yes and no. I do actually agree with your claim that Linux uses a nonstandard C because it builds with special flags and without them it would not work. But for code that just happens to have unintentional bugs that result in UB–I definitely consider that C. Code that has a gentleman's agreement with the compiler on certain UBs is straddling the line but I would still usually call it C, unless someone tried to claim that because GCC accepted something it must be part of the standard. My point really isn't that you're wrong or that this isn't useful in the right context–that's why I called it pedantic–but the difference between "we build our code with special flags and this doesn't work with any other code that is ostensibly in this language because of that" and "this works on major compilers but is not standards compliant" is kind large and I don't think you really needed to go where you did. Sort of like if you made a typo in a comment about the English language I don't go "you must be using a language other than English, because clearly this is not valid" I say you have a typo, but if you're one of the people who makes everything lowercase and doesn't use punctuation I might reasonable say "it's mostly English but I'm not sure I can really call it that without qualification".