As far as I know C <i>is</i> context-free. If C&#x27;s grammar is ambiguous, that just makes it an ambiguous context-free grammar [1].<p>[1]: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Ambiguous_grammar" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Ambiguous_grammar</a>