And… you got your nitpickery wrong. A C null pointer is just 0. The exact definition in the statement is "a null pointer is a integral constant expression with

And… you got your nitpickery wrong. A C null pointer is just 0. The exact definition in the statement is "a null pointer is a integral constant expression with value 0". There are some stddef.h which cast it to a void*, but technically that's just a compatibility hack. See http://c-faq.com/null/macro.html http://c-faq.com/null/macro.html http://c-faq.com/null/safermacs.html http://c-faq.com/null/safermacs.html http://c-faq.com/null/nullor0.html http://c-faq.com/null/nullor0.html http://c-faq.com/null/long0.html http://c-faq.com/null/long0.html