C++ Standard Library C++ STL Library
Python Java C++ C C# PHP R SQL DS Algo InterviewQ
C++ Standard Library C++ STL Library

C++ - <cstddef> (stddef.h)

The C++ <cstddef> header defines several types and macros. Many of these definitions also appear in other header files. These types and macros are available to use in a current program after including the header file using - #include <cstddef> or #include <stddef.h>. All types and macros of this header file are listed below:

Library Types

TypesDescription
ptrdiff_t Signed integer type of the result of difference of two pointers.
size_t Unsigned integer type.
nullptr_t Null pointer type.

Library Macros

Macro constants

MacrosDescription
NULL Null pointer.
5
AlphaCodingSkills
AlphaCodingSkills Android App
Facebook Page Twitter Page LinkedIn Page
Learning Tutorials
Miscellaneous Topics
Useful Links
Python Libraries
About Us  |  Privacy Policy  |  Contact Us
AlphaCodingSkills is a online learning portal that provides tutorials on Python, Java, C++, C, C#, PHP, R, Ruby, Rust, Scala, Swift, Perl, SQL, Data Structures and Algorithms. Tutorials, examples and references are reviewed and simplified continuously to improve comprehensibility and eliminate any possible error. We use cookies to ensure best browsing experience on our website. While using this website, you acknowledge to have read and accepted our cookie and privacy policy.