Is "void" a scalar type?

Question

On some sites I have found that void is a scalar type:

• https://ee.hawaii.edu/~tep/EE160/Book/chap5/section2.1.3.html

• http://herbert.the-little-red-haired-girl.org/en/prgmsc1/docs/part2a.pdf

• https://www.zentut.com/c-tutorial/c-data-types/

Other sites contain no information about this:

• https://www.sqa.org.uk/e-learning/LinkedDS01CD/page_03.htm

• https://i.stack.imgur.com/tFDt3.png

Is void a scalar type or not?

Answer 1

From the C18 standard (6.2.5 §21) :

Arithmetic types and pointer types are collectively called scalar types.

void is neither an arithmetic type, nor a pointer type, so it's not a scalar type.

From 6.2.5 §19 :

The void type comprises an empty set of values; it is an incomplete object type that cannot be completed.