cstddef
Standard library header <cstddef>
This header was originally in the C standard library as <stddef.h>.
This header is part of the utility library.
Macros
| NULL | implementation-defined null pointer constant (macro constant) |
|---|---|
| offsetof | byte offset from the beginning of a standard-layout type to specified member (function macro) |
Types
| size_t | unsigned integer type returned by the sizeof operator (typedef) |
|---|---|
| ptrdiff_t | signed integer type returned when subtracting two pointers (typedef) |
| nullptr_t (C++11) | the type of the null pointer literal nullptr (typedef) |
| max_align_t (C++11) | POD type with alignment requirement as great as any other scalar type (typedef) |
| byte (C++17) | the byte type (enum) |
Synopsis
namespace std {
using ptrdiff_t = /*see definition*/ ;
using size_t = /*see definition*/ ;
using max_align_t = /*see definition*/ ;
using nullptr_t = decltype(nullptr
enum class byte : unsigned char {} ;
template <class IntegerType>
constexpr byte& operator<<=(byte& b, IntegerType shift) noexcept;
template <class IntegerType>
constexpr byte operator<<(byte b, IntegerType shift) noexcept;
template <class IntegerType>
constexpr byte& operator>>=(byte& b, IntegerType shift) noexcept;
template <class IntegerType>
constexpr byte operator>>(byte b, IntegerType shift) noexcept;
constexpr byte& operator|=(byte& l, byte r) noexcept;
constexpr byte operator|(byte l, byte r) noexcept;
constexpr byte& operator&=(byte& l, byte r) noexcept;
constexpr byte operator&(byte l, byte r) noexcept;
constexpr byte& operator^=(byte& l, byte r) noexcept;
constexpr byte operator^(byte l, byte r) noexcept;
constexpr byte operator~(byte b) noexcept;
template <class IntegerType>
constexpr IntegerType to_integer(byte b) noexcept;
}
#define NULL /*see definition*/
#define offsetof(P, D) /*see definition*/
Notes
NULLis also defined in the following headers:
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
