Annex C (informative) Compatibility [diff]

C.7 C standard library [diff.library]

C.7.5 Modifications to behavior [diff.mods.to.behavior]

C.7.5.3 Memory allocation functions [diff.malloc]

The functions aligned_alloc, calloc, malloc, and realloc are restricted in C++.
Subclause [c.malloc] describes the changes.