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pointer operators in c

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ZCaa369 answered on September 10, 2021 Popularity 10/10 Helpfulness 3/10

answer pointer operators in c

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pointer operators in c

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&  ==> address operator
*  ==> dereference operator

// Example
int a = 1;
int *ptr; // int * defines a pointer variable pointing at an int
ptr = &a; // the address of 'a' is assigned to the pointer

// 'ptr' is now equal to the address of 'a'
// when dereferenced using *, it returns the value at that address

printf("value of a: %d", *ptr); // prints "value of a: 1"

Popularity 10/10 Helpfulness 3/10 Language c

Source: Grepper

Tags: c operators

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Contributed on Sep 10 2021

ZCaa369

0 Answers Avg Quality 2/10

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pointer in c

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#include <stdio.h>

int main()
{
    int j;
    int i;
    int *p; // declare pointer

    i = 7;
    p = &i; // The pointer now holds the address of i
    j = *p;

    printf("i = %d \n", i);  // value of i
    printf("j = %d \n", j);  // value of j
    printf("*p = %d \n", p); // the address held by the pointer

    *p = 32; // asigns value to i via the pointer

    printf("i = %d \n", i);   // value of i
    printf("j = %d \n", j);   // value of j
    printf("*p = %d \n", p);  // the address held by the pointer
    printf("&i = %d \n", &i); // address of i
  
  	return 0;
    }

Popularity 10/10 Helpfulness 3/10 Language c

Source: Grepper

Tags: c

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Contributed on Feb 13 2022

Dirty Moose

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pointer in C

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#include <stdio.h>
int main()
{
   int* pc, c;
   
   c = 22;
   printf("Address of c: %p\n", &c);
   printf("Value of c: %d\n\n", c);  // 22
   
   pc = &c;
   printf("Address of pointer pc: %p\n", pc);
   printf("Content of pointer pc: %d\n\n", *pc); // 22
   
   c = 11;
   printf("Address of pointer pc: %p\n", pc);
   printf("Content of pointer pc: %d\n\n", *pc); // 11
   
   *pc = 2;
   printf("Address of c: %p\n", &c);
   printf("Value of c: %d\n\n", c); // 2
   return 0;
}

Popularity 10/10 Helpfulness 1/10 Language c

Source: Grepper

Tags: c

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Contributed on Jan 18 2022

Precious Pollan

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pointer in C

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#include<stdio.h>
#include<stdlib.h>
main()
{
    int *p;
    p=(int*)calloc(3*sizeof(int));
    printf("Enter first number\n");
    scanf("%d",p);
    printf("Enter second number\n");
    scanf("%d",p+2);
    printf("%d%d",*p,*(p+2));
    free(p);
}

Popularity 10/10 Helpfulness 1/10 Language c

Source: www.sanfoundry.com

Tags: c

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Contributed on May 28 2022

Busy Bat

0 Answers Avg Quality 2/10

pointer operators in c

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