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A variable-length array (VLA) is an array data structure whose length is determined at runtime, not at compile time. Learn how VLAs are implemented in different programming languages, such as C, Fortran, COBOL, C#, and Object Pascal.
In computer science, an associative array, map, symbol table, or dictionary is an abstract data type that stores a collection of (key, value) pairs, such that each possible key appears at most once in the collection. In mathematical terms, an associative array is a function with finite domain. [1] It supports 'lookup', 'remove', and 'insert ...
For example, in the Pascal programming language, the declaration type MyTable = array [1..4,1..2] of integer, defines a new array data type called MyTable. The declaration var A: MyTable then defines a variable A of that type, which is an aggregate of eight elements, each being an integer variable identified by two indices.
c = a + b In addition to support for vectorized arithmetic and relational operations, these languages also vectorize common mathematical functions such as sine. For example, if x is an array, then y = sin (x) will result in an array y whose elements are sine of the corresponding elements of the array x. Vectorized index operations are also ...
A dynamic array is a data structure that allows elements to be added or removed from a variable-size list. Learn how dynamic arrays work, their advantages and disadvantages, and their performance comparison with other list data structures.
Learn about array programming, a solution that allows operations on entire sets of values at once. Compare array programming languages, concepts, and examples with scalar languages.
Arrays can have multiple dimensions, thus it is not uncommon to access an array using multiple indices. For example, a two-dimensional array A with three rows and four columns might provide access to the element at the 2nd row and 4th column by the expression A[1][3] in the case of a zero-based indexing
C is a general-purpose, low-level language created by Dennis Ritchie in the 1970s for Unix. It is widely used and influential in operating systems, device drivers, and embedded systems, and has a standardized syntax and semantics.