Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here. ArchiveDisclaimer


NULL is the null-pointer value used with many pointer operations and functions. It is equivalent to 0. NULL is defined in the following header files: CRTDBG.H, LOCALE.H, STDDEF.H, STDIO.H, STDLIB.H, STRING.H, TCHAR.H, TIME.H and WCHAR.H.

© 2015 Microsoft