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# What is a C++ struct?

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C++ struct, short for C++ Structure, is an user-defined data type available in C++. It allows a user to combine data items of (possibly) different data types under a single name.

C++ structs are different from arrays because arrays only hold data of similar data-types; C++ struct, on the other hand,​ can store data of multiple data-types.

Each element in the structure is called a member.

## Syntax

A structure is defined with the struct keyword. A structure is a possible collection of primary data types and other structures.

• The structure_name holds the name we want to give to our structure.
• data_type variable is the C++ variables of different data types like int, char, float, etc.
struct structure_name{    //data_type variable 1    //data_type variable 2    //data_type variable 3    ...};

## Code

### Defining a structure

The code below initializes the structure of Employee. It has three member variables:

• name: An array of char type.
• age: A variable of int type.
• **salary**​: A variable of float type.
struct Employee{  char name[50];  int age;  float salary;};

### Initializing a structure

Structures can be assigned values when they are initialized.

#### Before initialization:

struct Employee{  char name[50];  int age;  float salary;};int main() {  struct Employee e1 = {"John", 32, 4200};  //accessing the values in the variable  printf("Name: %s\n", e1.name);  printf("Age : %d\n", e1.age);  printf("Salary : %f\n", e1.salary);}

#### After initialization:

struct Employee{  string name;  int age;  float salary;};int main() {  struct Employee e1;  e1.name = "Albert";  e1.age = 32;  e1.salary = 4200;  //accessing the values in the variable  cout<< "Name: " << e1.name <<endl;  cout<< "Age : " << e1.age <<endl;  cout<< "Salary : " << e1.salary <<endl;}

### Accessing a Structure

Variables in a structure are accessed by:

struct Employee{  int age;  float salary;};int main() {  struct Employee e1 = {32, 4200};  //accessing the values in the variable  cout<< "Age : " << e1.age << endl;  cout<< "Salary : " << e1.salary << endl;}

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