Question

Some types and macros defined under the header file stddef.h may be defined under other header files too.

(a) True

(b) False

The question was posed to me during a job interview.

The origin of the question is Standard Definition in division C Library of C

Answer 1

Right answer is (a) True

The best explanation: There are some types and macros which are defined under various other header files, in addition to being defined under stddef.h. For example, the type size_t is defined under stdio.h, stdlib.h, string.h etc in addition to being defined under stddef.h.