Recent activity by shiva0 / GATE Overflow for GATE CSE

2 answers

1

#arrays
i write this program, during initialization of array i given the size as 11 means the number of elements stored in an array is 11. as we know array is not assigned a value of index 12 and above. but in in the program array a is initialized of index from 0 to 19,my question is how the array is ... i=0;i<20;i++) { a[i]=i+1; } for(i=0;i<20;i++) { printf("%d\n",a[i]); } }

i write this program, during initialization of array i given the size as 11 means the number of elements stored in an array is 11.as we know array is not assigned a value...

695 views

commented Apr 7, 2019

1 answer

2

#Dynamic memory allocation malloc
how to know how much size is allocated while dynamically allocating memory to the pointer variable with malloc. i just write the below code to know the size of ptr2 after dynamically allocating memory. i want the output is 10 but it is displaying as 2 as ... allocation failed"); else{ printf("size of *ptr2 is == %d\n",(sizeof(ptr2)/sizeof(int))); } }

how to know how much size is allocated while dynamically allocating memory to the pointer variable with malloc.i just write the below code to know the size of ptr2 after ...

680 views

commented Apr 6, 2019

0 answers

3

malloc
queue->array = (int*) malloc(queue->capacity *sizeof(int)); What is queue->capacity * doing here?

queue->array = (int*) malloc(queue->capacity *sizeof(int));What is queue->capacity * doing here?

297 views

commented Apr 6, 2019

3 answers

4

#userdefined Data type union in C
What is the output of the program? int main() { union a { int i; char ch[2]; }; union a u; u.ch[0] = 3; u.ch[1] = 2; printf("%d, %d, %d", u.ch[0], u.ch[1], u.i); return 0; }

What is the output of the program? int main() { union a { int i; char ch ; }; union a u; u.ch[0] = 3; u.ch = 2; printf("%d, %d, %d", u.ch[0], u.ch , u.i); return 0; }

470 views

commented Apr 6, 2019

1 answer

5

#operator precedence and associativity
#include<stdio.h> int x = 0; int f1() { x = 5; return x; } int f2() { x = 10; return x; } int main() { printf("%d \n", f1()); printf("%d \n", f2()); int p = f1() + f2(); printf("%d ", x); return 0; } what is the output when int p= f1()+f2(); is called and how this is came?????? thank you…!

#include<stdio.h int x = 0; int f1() { x = 5; return x; } int f2() { x = 10; return x; } int main() { printf("%d \n", f1()); printf("%d \n", f2()); int p = f1() + f2(); p...

825 views

asked Mar 10, 2019

0 answers

6

c++,Exception,Base and derived class exception
#include<iostream> using namespace std; class Base {}; class Derived: public Base {}; int main() { Derived d; // some other stuff try { // Some monitored code throw d; } catch(Base b) { cout<<"Caught Base ... base class exception is caught can anyone explain how it is happened internally . and what is class Derived: public Base {};

#include<iostream using namespace std; class Base {}; class Derived: public Base {}; int main() { Derived d; // some other stuff try { // Some monitored code throw d; } c...

708 views

asked Feb 9, 2019

1 answer

7

c programming ,data types
what is the output???? and how it internally converted to int when we are printing with %d format specifier?? when i run in my ide i got 50 as output and i donn’t know how it came? can anyone explain how 50 came #include <stdio.h> int main() { char a = '12'; printf("%d", a); return 0; }

what is the output???? andhow it internally converted to int when we are printing with %d format specifier??when i run in my ide i got 50 as output and i donn’t know ho...

383 views

commented Jan 26, 2019

1 answer

8

data types
what is the output of the following programming???? and am confusing is unsigned int stores signed integer, and what is ~ ' this symbol ?? and what happened when assigning ~0' to y????? and what will be printed when x,y are printing and how ? can anyone tell me ... printf("same"); else printf("not same"); printf("\n x is %u, y is %u", x, y); return 0; }

what is the output of the following programming????and am confusing is unsigned int stores signed integer, and what is ‘ ~ ’ this symbol ?? and what happened when ass...

456 views

commented Jan 25, 2019

1 answer

9

programming
what is the reason…..?for error..

what is the reason…..?for error..

325 views

comment edited Jan 22, 2019

0 answers

10

linkage in C
Can Anyone give a Best example for Internal and External Linkage in c/c++ I know what is internal and external linkage but still am confusing about what is the Translation Unit ,file ,Program. Internal Linkage:The variables which are accessed only inside the file( ... If anyone gives a better example describing each term with full code it will be helpful to me thank you ..!

Can Anyone give a Best example for Internal and External Linkage in c/c++I know what is internal and external linkage but still am confusing about what is the Translation...

240 views

asked Jan 21, 2019

1 answer

11

c programming Files
#include<stdio.h> int main() { FILE *fp[2]; if((fp[0]=fp[1]=fopen("test.txt","w"))!=NULL) //test.txt file should be empty during first compiling { fputs("one",fp[0]); fclose(fp[0]); fputs("two",fp[1]); ... is done after fputs("one",fp[0]); and fputs("two",fp[1]); can anyone tell me with explanation...please .

#include<stdio.h>int main(){ FILE *fp ; if((fp[0]=fp =fopen("test.txt","w"))!=NULL) //test.txt file should be empty during first compiling { fputs("one",...

465 views

commented Jan 20, 2019

0 answers

12

c programming
int main() { int a=2,b=2,c=2; printf("%d",a==b==c); return 0; } what is the output??? and what will be done during execution can anyone explain this……...

int main(){ int a=2,b=2,c=2; printf("%d",a==b==c); return 0;}what is the output??? and what will be done during executioncan anyone explain this……...

454 views

closed Jan 19, 2019

0 answers

13

UGC-NET CS 2016 question
Given i= 0, j = 1, k = – 1 x = 0.5, y = 0.0 What is the output of given ‘C’ expression ? x * 3 & & 3 || j | k explanation please….

Given i= 0, j = 1, k = – 1x = 0.5, y = 0.0What is the output of given ‘C’ expression ?x * 3 & & 3 || j | kexplanation please….

393 views

asked Jan 19, 2019

0 answers

14

programming
what is the use of void in main(void)? my code is: #include <stdio.h> #include <conio.h> int main(int argc,char *argv[]) { int i; if( argc >= 2 ) { printf("The arguments supplied are:\n"); for(i = 1; i < argc; i++) ... main(void) the program should not take any value .. anyone please tell me what is the reason and what is the use of void in the main(void)

what is the use of void in main(void)?my code is:#include <stdio.h>#include <conio.h>int main(int argc,char *argv[]) { int i; if( argc >= 2 ) { printf("Th...

207 views

edited Jan 16, 2019

0 answers

15

programming
is *ptr=&a is true in C i found this in can anyone explain what does *ptr = &i; in the above picture

is *ptr=&a is true in Ci found this incan anyone explain what does *ptr = &i; in the above picture

848 views

commented Jan 14, 2019

0 answers

16

programming
#include<stdio.h> #include<string.h> int main() { char fullname[]="abcd"; char firstname[]="xxxxx"; //char lastName[]='Nagula'; printf("enter number\n"); printf("Press 1 for fullname\n"); printf("Press 2 for ... :invalid initialiser in line char name[]= ( a==1 ? fullname : firstname); how to correct it. thank you..!

#include<stdio.h>#include<string.h>int main(){ char fullname[]="abcd"; char firstname[]="xxxxx"; //char lastName[]='Nagula'; printf("enter number\n"); ...

302 views

asked Jan 13, 2019

1 answer

17

programming
#include<stdio.h> #define A -B #define B -C #define C 5 int main() { printf("The value of A is %dn", A); return 0; } what is the output?????

#include<stdio.h #define A -B #define B -C #define C 5 int main() { printf("The value of A is %dn", A); return 0; }what is the output?????

376 views

commented Jan 12, 2019

1 answer

18

programming doubt
#include<stdio.h> int main() { int i = 1; printf("%d %d %d\n", i++, i++, i); return 0; } on running i m getting answer : 2 1 3 why answer cant be 1 2 3

#include<stdio.h>int main(){ int i = 1; printf("%d %d %d\n", i++, i++, i); return 0;} on running i m getting answer : 2 1 3 why answer cant be 1 2 3

7.2k views

commented Jan 12, 2019

0 answers

19

geeksforgeeks
#include int main() { int i = 1; printf("%d %d %d\n", i++, i++, i); return 0; }

#include int main() { int i = 1; printf("%d %d %d\n", i++, i++, i); return 0; }

651 views

commented Jan 12, 2019

2 answers

20

c program output
#include<stdio.h> main() { char c = 'A'+255; printf("%c", c); }

#include<stdio.h main() { char c = 'A'+255; printf("%c", c); }

857 views

commented Jul 20, 2018

2 answers

21

C programming
#include <stdio.h> main() { char *p = "Sanfoundry C-Test"; p[0] = 'a'; p[1] = 'b'; printf("%s", p); }

#include <stdio.h main() { char *p = "Sanfoundry C-Test"; p[0] = 'a'; p = 'b'; printf("%s", p); }

2.2k views

commented Jul 19, 2018

2 answers

22

c program output
#include <stdio.h> main() { char *p = 0; *p = 'a'; printf("value in pointer p is %c\n", *p); }

#include <stdio.h>main(){char *p = 0;*p = 'a';printf("value in pointer p is %c\n", *p);}

4.5k views

asked Jul 18, 2018

0 answers

23

c program
#include<stdio.h> int main() { int i=0; for(printf(" one\n "); i < 3 && printf(" "); i++) { printf("Hi!\n"); } return 0; }

#include<stdio.h>int main(){ int i=0; for(printf(" one\n "); i < 3 && printf(" "); i++){ printf("Hi!\n");}return 0;}

1.4k views

commented Jul 14, 2018

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title	title:apple
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score	score:10
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