Search results
Results from the WOW.Com Content Network
In the C programming language, struct is the keyword used to define a composite, a.k.a. record, data type – a named set of values that occupy a block of memory. It allows for the different values to be accessed via a single identifier, often a pointer. A struct can contain other data types so is used for mixed-data-type records.
A structure can also be assigned as a unit to another structure of the same type. Structures (and pointers to structures) may also be used as function parameter and return types. For example, the following statement assigns the value of 74 (the ASCII code point for the letter 't') to the member named x in the structure tee, from above:
An autorelative pointer is a pointer whose value is interpreted as an offset from the address of the pointer itself; thus, if a data structure has an autorelative pointer member that points to some portion of the data structure itself, then the data structure may be relocated in memory without having to update the value of the auto relative ...
Structures may be initialized or assigned to using compound literals. A function may directly return a structure, although this is often not efficient at run-time. Since C99, a structure may also end with a flexible array member. A structure containing a pointer to a structure of its own type is commonly used to build linked data structures:
Not all languages support type conversion between pointers and integers, XOR on pointers is not defined in some contexts; While traversing the list, the address of the previously accessed node is needed to calculate the next node's address and the pointers will be unreadable if one isn't traversing the list—for example, if the pointer to a ...
In Germany, Nassi–Shneiderman diagrams were standardised in 1985 as DIN 66261. [5] They are still used in German introductions to programming, for example Böttcher and Kneißl's introduction to C, [6] Baeumle-Courth and Schmidt's introduction to C [7] and Kirch's introduction to C#. [8] Nassi–Shneiderman diagrams can also be used in ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
When a dangling pointer is used after it has been freed without allocating a new chunk of memory to it, this becomes known as a "use after free" vulnerability. [4] For example, CVE-2014-1776 is a use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 [5] being used by zero-day attacks by an advanced persistent threat. [6]