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OFFSETOF

Offsetof

Standard macro in the C programming language

C's offsetof() macro is an ANSI C library feature found in stddef.h. It evaluates to the offset (in bytes) of a given member within a struct or union type

Offsetof

Message Passing Interface

Message-passing system for parallel computers

disp[] = { offsetof(struct B, a) + offsetof(struct A, f), offsetof(struct B, a) + offsetof(struct A, p), offsetof(struct B, pp), offsetof(struct B, vp)

Message Passing Interface

Message_Passing_Interface

Flexible array member

C language feature

structure, its content should always be accessed via indexing (arr[i]) or offsetof, not sizeof. Flexible array members were officially standardized in C99

Flexible array member

Flexible_array_member

C data types

Data types supported by the C programming language

of: Variables C syntax Uninitialized variable Integer (computer science) Offsetof Barr, Michael (2 December 2007). "Portable Fixed-Width Integers in C".

C data types

C_data_types

Sizeof

Storage size operator in C and C++

containing a flexible array member named a, sizeof s is therefore equivalent to offsetof(s, a): #include <stdio.h> typedef struct { char val; int a[]; // Flexible

Sizeof

C++ classes

Type of data structure

padding at the beginning of a POD-struct. A POD-struct may be used with the offsetof macro. C++ classes have their own members. These members include variables

C++ classes

C++_classes