Header <cstdlib>: The following functions have different behavior:
atexit
exit
abort
Subclause [support.start.term] describes the changes.
Header <csetjmp>: The following functions have different behavior:
longjmp
Subclause [csetjmp.syn] describes the changes.
The macro offsetof, defined in <cstddef>, accepts a restricted set of type arguments in this International Standard. Subclause [support.types.layout] describes the change.
The functions aligned_alloc, calloc, malloc, and realloc are restricted in this International Standard. Subclause [c.malloc] describes the changes.