Register

Recent questions tagged pointers

0 votes
1 answer
151
C programming
int main() { char *p="abc"; char *q="abc123"; while(*p++=*q++) printf("%c %c",*p,*q); } The Output is b bc c 1a 2b 3c Here explain how did 1a 2b 3c will come as at that time p has null value
int main() { char *p="abc"; char *q="abc123"; while(*p++=*q++) printf("%c %c",*p,*q); }The Output is b bc c 1a 2b 3cHere explain how did 1a 2b 3c will come as at that tim...
User Avatar
0 votes
1 answer
152
C Programming
What would be the equivalent pointer expression for referring the array element a[i][j][k][l]? A. ((((a+i)+j)+k)+l) B. *(*(*(*(a+i)+j)+k)+l) C. (((a+i)+j)+k+l) D. ((a+i)+j+k+l)
What would be the equivalent pointer expression for referring the array element a[i][j][k][l]?A. ((((a+i)+j)+k)+l)B. *(*(*(*(a+i)+j)+k)+l)C. (((a+i)+j)+k+l)D. ...
User Avatar
0 votes
0 answers
154
C programming
User Avatar
0 votes
2 answers
155
C programming
User Avatar
0 votes
1 answer
156
C programming
#include<stdio.h> int main() { char *x; int a = 512; x = (char *) &a; x[0] = 1; x[1] = 2; printf("%d\n",a); return 0; } What is the output of above program? Machine dependent $513$ $258$ Compiler Error
#include<stdio.h int main() { char *x; int a = 512; x = (char *) &a; x[0] = 1; x = 2; printf("%d\n",a); return 0; }What is the output of above program?Machine dependent$...
User Avatar
0 votes
0 answers
157
C programming
User Avatar
0 votes
2 answers
158
C programming
User Avatar
0 votes
0 answers
160
stack overflow
int* func() { int* mem = malloc(1024); return mem; } int* mem = func(); Can anyone pls explain the code?
int* func() { int* mem = malloc(1024); return mem; } int* mem = func();Can anyone pls explain the code?
User Avatar
1 votes
0 answers
163
output = 514 how
main() { int a ; char *x; x = ( char *)&a; a = 512 ; x[0] = 2 ; x[1] = 2 ; printf("%d",a); }
main(){ int a ;char *x;x = ( char *)&a;a = 512 ;x[0] = 2 ;x = 2 ;printf("%d",a);}
User Avatar
3 votes
0 answers
164
Ace Test Series: Programming - Pointers And Character
Answer given is option C. How ? I gather that the character pointer will point to the first byte of the integer whose value is 255. But after that what should be the solution ?
Answer given is option C. How ?I gather that the character pointer will point to the first byte of the integer whose value is 255.But after that what should be the soluti...
User Avatar
1 votes
0 answers
165
Programming01
Consider below code My ans : mech,g,mech Given ans : mech,g,civil third printf statement is somwhat confusing .. please explain
Consider below code My ans : mech,g,mech Given ans : mech,g,civilthird printf statement is somwhat confusing ..please explain
User Avatar
0 votes
0 answers
170
C Programming
#include<stdio.h> int main() { int a[2][2][2]={10,2,3,4,5,6,7,8}; int *p,*q; p=&a[1][1][1]; q=(int*)a; //Please explain this line printf("%d%d"*p,*q); return 0; } Why we are doing typecasting here and what will be returned after type cast to q?
#include<stdio.h int main() { int a ={10,2,3,4,5,6,7,8}; int *p,*q; p=&a ; q=(int*)a; //Please explain this line printf("%d%d"*p,*q); return 0; }Why we are doing type...
User Avatar
1 votes
2 answers
171
Pointers
Plz Explain with a diagram .
Plz Explain with a diagram .
User Avatar
2 votes
1 answer
172
Pointer arithmetic
What is the output of the following ? int main() { int arr[2][3][2]={1,2,3,4,5,6,7,8,9,10,11,12}; printf("%d%d", a[1]-a[0], a[1][0]-a[0][0]); return 0; }
What is the output of the following ?int main(){int arr [3] ={1,2,3,4,5,6,7,8,9,10,11,12};printf("%d%d", a -a[0], a [0]-a[0][0]);return 0;}
User Avatar
0 votes
1 answer
173
pointer
int *p, A[3]={0,1,2}; p=A; *(P+2)=5; p=A++; *P=7; what are the values stored in the atray A from index 0 to index 2 after execution of the above cod?
int *p, A[3]={0,1,2};p=A;*(P+2)=5;p=A++;*P=7; what are the values stored in the atray A from index 0 to index 2 after execution of the above cod?
User Avatar
1 votes
1 answer
174
Programming and data structures
Please explain the working of pointers in this question. I'm unable to understand how we are getting this answer.
Please explain the working of pointers in this question. I'm unable to understand how we are getting this answer.
User Avatar
0 votes
1 answer
176
Dereferencing Function pointer multiple times
Hi, Why multiple dereferencing is not creating problem in the following program ? https://ideone.com/3Li06v (Check line 1,2 & 3. all are giving same O/P)
Hi,Why multiple dereferencing is not creating problem in the following program ?https://ideone.com/3Li06v (Check line 1,2 & 3. all are giving same O/P)
User Avatar
7 votes
3 answers
177
Output of program. Please explain how this works
What is the output of the following program? #include<stdio.h> int main() { int array[]={10, 20, 30, 40}; printf(“%d”, -2[array]); return 0; } $-60$ $-30$ $60$ Garbage value
What is the output of the following program?#include<stdio.h int main() { int array[]={10, 20, 30, 40}; printf(“%d”, -2[array]); return 0; }$-60$$-30$$60$Garbage valu...
User Avatar
0 votes
1 answer
178
C programming
#include<stdio.h> int main() { int a[] = {1, 2, 3, 4, 5, 6}; int *ptr = (int*)(&a+1); printf("%d ", *(ptr-1) ); return 0; } Give the output with explanation.
#include<stdio.h int main(){ int a[] = {1, 2, 3, 4, 5, 6}; int *ptr = (int*)(&a+1); printf("%d ", *(ptr-1) ); return 0;}Give the output with explanation.
User Avatar
1 votes
1 answer
179
C-programming
What will be the output ? #include<stdio.h> int main() { char *str1 = "xyz"; char *str2 = "xyz"; if(str1 == str2) printf("equal"); else printf("unequal"); return 0; }
What will be the output ?#include<stdio.h>int main(){ char *str1 = "xyz"; char *str2 = "xyz"; if(str1 == str2) printf("equal"); else printf("une...
User Avatar
3 votes
1 answer
180
Output of this program
main( ) { int n[3][3] = { 2, 4, 3, 6, 8, 5, 3, 5, 1 } ; printf ( "\n%d %d %d", *n, n[3][3], n[2][2] ) ; }
main( ){int n[3][3] = {2, 4, 3,6, 8, 5,3, 5, 1} ;printf ( "\n%d %d %d", *n, n[3][3], n ) ;}
User Avatar
Page: