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main() {int a[3][2]={0},(*ptr)[2],i,j; for(i=0;i<2;i++) {ptr=a...
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@AnT I am expecting the output as "2 3 3 4" because I think initially the ptr is pointing to the first row of double dimensional array "a". Therefore (*ptr)[1] of first printf will give us 2, like wise (*ptr)[2] will give us 3.But after the ++ptr line it will start pointing to the second element of the first row of a[][3].Therefore (*ptr)[1] of second line should now give us 3 and likewise ...
Output: x=10 y=10 z=10. Description: *y is a pointer variable whereas **z is a pointer to a pointer variable. *y gives the value at the address it holds and **z searches twice i.e., it first takes the value at the address it holds and then gives the value at that address. This article is contributed by I.HARISH KUMARs and would like to contribute, you can also write an article using write ...
int (*ptr)[3] = a; // here ptr is pointer to an array of 3 integers. At first ptr is pointing to first row. Say address of 1st row is 2000. So, (*ptr)[1]=*(2004)=2 and (*ptr)[2]=*(2008)=3 Now ++ptr is updating pointer to next row.So, Now ptr pointing to address 2000+3*4=2012
static int a[] = {10, 20, 30, 40, 50}; static int *p[] = {a, a+3, a+4, a+1, a+2}; int **ptr = p; ptr++; $\text{ptr-p} = \frac{\text{address of ptr} - \text{address of ...
Options: a. 32, A b. 32, a c. 129, a d. 129, A. Answer: c. 129, a. Explanation: The "ptr" variable is a pointer which holds the address of variable "a". And "*ptr" returns the value of "a" variable. "cho" is a reference variable to "ch".
The line ptr=(char *)&a; casts the address of the float variable to a pointer of type char.Thus you are now interpreting the 4 bytes of which the float consists of as single bytes, which values you print with your for loop.. The statement *ptr++ post-increments the pointer after reading its value, which means, you read the value pointed to (the single bytes of the float) and then advance the ...
More on pointers and arrays • Suppose that a is an int array of size 10. • If pa is a pointer to an integer, i.e., int *pa; then the assignment
int a[]={0,1,2,3,4}; int *p[]={a, a+1, a+2, a+3, a+4}; for(i=0;i<5;i++) printf("%d",*p[i]); An array of Pointer arithmetic in c with Multidimensional Array. A multidimensional array is an array of arrays. A 2-D array consists of multiple 1-D arrays. For Example: int a[10][20]; Here, a is a two-dimensional array with 10 rows and 20 columns ...
EENG 212 Lab sheet #3 Spring 2019 Page 6 Investigate the following example: int **pptr;
As a programming teacher with over 15 years of experience, I've seen many students get overwhelmed trying to grasp pointers in C. But by starting from first principles and building up concepts slowly, you'll find they are approachable. This guide aims to help even complete beginners unlock the full power of C pointers! What Exactly […]