Arrays in C++

Flashcards covering the definition, declaration, initialization, accessing elements and traversing of arrays in C++.

Array

A data structure that represents a fixed-size sequence of elements of the same data type, stored in contiguous memory locations.

Fixed Size (Arrays)

The size of an array must be specified at compile time and cannot be changed during runtime.

Multiple Values (Arrays)

Arrays hold multiple values under a single variable name, allowing for efficient storage and access of related data.

Same Data Type (Arrays)

All elements within a specific array must be of the same type, such as all integers or all characters.

Contiguous Memory Locations (Arrays)

The elements of an array are stored one after another in memory, which is crucial for efficient access.

Indexing (Arrays)

Each element in an array can be accessed using its index, starting from 0 for the first element.

Array Declaration Syntax

You declare an array by specifying its data type, name, and size within square brackets.

Initializing Arrays with a List of Values

You can initialize the elements of an array when you declare it by providing a comma-separated list of values enclosed in curly braces.

Implicitly Sized Arrays

If you provide an initializer list during declaration, you can omit the size of the array, and the compiler will automatically deduce the size.

Accessing Array Elements

Array elements are accessed using indices, with indexing starting from 0.

Traversing Arrays

Loops are commonly used to iterate through array elements for processing or printing.

Multidimensional Arrays

Arrays can have more than one dimension, allowing for the representation of data in a grid or matrix format.

Limitation of Fixed Size (Arrays)

Arrays have a fixed size, which means their size cannot be changed during runtime.

Limitation of No Built-in Bounds Checking (Arrays)

Arrays in C++ do not have built-in bounds checking, which can lead to potential issues if indices are out of range.