C++ Structures, Pointers, and Arrays: Core Concepts
This section delves into fundamental C++ concepts: structures, pointers, and arrays. While C++ inherits many of these ideas from C, it introduces powerful enhancements, particularly in the realm of structures.
C++ Structures
In C++, structures (struct) build upon their C counterparts by allowing the inclusion of member functions (methods) along ...
Posted on Fri, 29 May 2026 18:16:22 +0000 by Liquidedust
Practical Patterns for C Structures: Declarations, Arrays, and Pointer Mechanics
Variable Declaration Strategies
C provides three distinct approaches for declaring structure variables. Each method dictates how the type tag is managed across translation units.
Separate Type and Variable Declaration
First, establish the type using the struct keyword and a unique identifier. Later, instantiate variables using that complete typ ...
Posted on Sat, 16 May 2026 22:59:55 +0000 by scottlowe
C Structures and Unions Review
Definition
Aggregate data types can store more than one individual data type simultaneously. C provides two types of aggregate data types: arrays and structures. Arrays store collections of elements of the same type, while structures can hold collections of different types. However, unlike arrays, structure members cannot be accessed via subscr ...
Posted on Fri, 15 May 2026 05:42:26 +0000 by DJ_CARO
Understanding and Implementing Structures in C++
A structure in C++ is a user-defined composite data type that groups variables of different types under a single name.
Defining and Using a Structure
#include <iostream>
#include <string>
using namespace std;
struct PersonData {
string fullName;
int yearsOld;
int examScore;
} personThree; // Variable declared with the s ...
Posted on Sat, 09 May 2026 19:27:26 +0000 by tucker
Understanding Memory Alignment and Padding in C Structs
Calculating Member Offsets
To understand how structures are laid out in memory, it is useful to know the concept of an offset. The offset of a member is the distance in bytes from the start of the structure's base address. The first member always has an offset of 0.
You can utilize the standard macro offsetof (defined in stddef.h) to inspect th ...
Posted on Fri, 08 May 2026 22:44:06 +0000 by rathersurf