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