StructAndPointer.txt

https://www.programiz.com/c-programming/c-structures

Fact 1:

Struct Example without typedef:

struct person
{
   int age;
   float weight;
};

int main(){
    struct person p1;
    p1.age = 24;
    p1.weight = 57.9;
    printf("Age %d", p1.age);
}

Fact 2:

Struct Example with typedef:

#include <stdio.h>

typedef struct personData
{
   int age;
   float weight;
} person;  // "personData" is the name of struct, "person" is alternative of struct type 
           // now you can use "person" to create struct object.
int main(){
    person p1;
    p1.age = 24;
    p1.weight = 57.9;
    printf("Age %d", p1.age);
}


Fact 2:

Struct Input:

#include <stdio.h>

typedef struct personData
{
   int age;
   float weight;
} person;  // "personData" is the name of struct, "person" is alternative of struct type
           // now you can use "person" to create struct object.
int main(){
    person person1;
    printf("Enter age : ");
    scanf("%d", &person1.age);
    printf("Age : %d", person1.age);
}

Fact 3

Access structur member through pointer

#include<stdio.h>

typedef struct personData
{
    int age;
    float weight;
} person;

int main(){
    person person1, *personPtr;
    person1.age = 12;
    person1.weight = 56.9;
    personPtr = &person1;
    printf("%d \n", personPtr->age); // you use -> only when the variable is pointer 
    printf("%.1f", personPtr->weight);
}