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Recent questions tagged programming-in-c

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1741
Is the following code legal?
void main() { typedef struct a aType; aType someVariable; struct a { int x; aType *b; }; }
void main() { typedef struct a aType; aType someVariable; struct a { int x; aType *b; }; }
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1 answer
1742
C programming \ predict the ouptput
void main() { int i=10, j=2; int *ip= &i, *jp = &j; int k = *ip/*jp; printf(“%d”,k); }
void main() { int i=10, j=2; int *ip= &i, *jp = &j; int k = *ip/*jp; printf(“%d”,k); }
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1 answer
1743
Type casting
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1 answer
1744
Type casting
K is int type K=2.0/9; What k will print? In let us c they give that k final value is 0.0 But I think it's value is 0
K is int typeK=2.0/9;What k will print? In let us c they give that k final value is 0.0But I think it's value is 0
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2 answers
1745
C programming\ predict-the-output
main() { printf("%x",-1<<4); }
main() { printf("%x",-1<<4); }
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1 answer
1746
C switch statement predict the output
main() { int i=3; switch(i) { default:printf("zero"); case 1: printf("one"); break; case 2:printf("two"); break; case 3: printf("three"); break; } }
main() { int i=3; switch(i) { default:printf("zero"); case 1: printf("one"); break; case 2:printf("two"); break; case 3: printf("three"); break; } }
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1 votes
2 answers
1747
C programming
Assume that the size of an integer is 4 bytes. Predict the output? #include <stdio.h> int fun() { puts(" Hello "); return 10; } int main() { printf("%d", sizeof(fun())); return 0; }
Assume that the size of an integer is 4 bytes. Predict the output?#include <stdio.h int fun() { puts(" Hello "); return 10; } int main() { printf("%d", sizeof(fun())); re...
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1 answer
1749
Which of the following is not a member of a class ?
A. Static function B. Friend Function C. Const Function D. Virtual function
A. Static functionB. Friend FunctionC. Const FunctionD. Virtual function
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1 votes
1 answer
1750
What does the following expressions means?
char *(*(* a[N])())(); Can somebody explain this for me? How to read this?
char *(*(* a[N])())();Can somebody explain this for me? How to read this?
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1 answer
1755
What is the problem with this code?
#include<stdio.h> int main() { char arr[10]; memset(arr,0,sizeof(arr)); gets(arr); printf("\n The buffer entered is [%s]\n",arr); return 0; }
#include<stdio.h int main() { char arr[10]; memset(arr,0,sizeof(arr)); gets(arr); printf("\n The buffer entered is [%s]\n",arr); return 0; }
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2 answers
1756
What will be the output, Please explain?
void f(int n){ if(n <= 1){ printf("%d", n); } else{ f(n/2); printf("%d", n%2); } }
void f(int n){ if(n <= 1){ printf("%d", n); } else{ f(n/2); printf("%d", n%2); } }
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1 answer
1757
Valid pointer operation
The valid pointer operation is assigning or comparing to zero in C Can anyone explain this statement?
The valid pointer operation is assigning or comparing to zero in CCan anyone explain this statement?
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4 votes
2 answers
1758
Scope
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2 answers
1759
What is the output of the program ?
#include<stdio.h> int main() { printf("%c\n", 7["IndiaBIX"]); return 0; } Please explain how the output is X ? I know while counting in Array will make X . But how this CODE works.........>>?
#include<stdio.h int main() { printf("%c\n", 7["IndiaBIX"]); return 0; } Please explain how the output is X ? I know while counting in Array will make X . But how this CO...
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1 answer
1760
garbage collection
Why C language does not provide heap or garbage collection ?? Is there any higher level mechanism??
Why C language does not provide heap or garbage collection ?? Is there any higher level mechanism??
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0 votes
3 answers
1761
programing
int main(){ int a; a = 1; while(a-- >= 1) while(a-- >= 0); printf("%d", a); }
int main(){ int a; a = 1; while(a >= 1) while(a >= 0); printf("%d", a); }
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1 answer
1762
C Programming doubt
What is the difference between struct node* head= NULL and struct node* head= (struct node*)NULL ?
What is the difference between struct node* head= NULL and struct node* head= (struct node*)NULL ?
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1 votes
3 answers
1763
C pointer doubt
What is the difference when I write in program mynode * head; add_node(&head,10); add_node( struct node ** head, into value); To this mynode *head; add_node (head,10); add_node( struct node* head, into value) Which is the correct way of writing?
What is the difference when I write in program mynode * head; add_node(&head,10); add_node( struct node head, into value);To this mynode *head; add_node (head,10); add_...
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1 votes
1 answer
1764
Output of c program
void fun(int *p) { int q = 10; p = &q; } int main() { int r = 20; int *p = &r; fun(p); printf("%d", *p); return 0; }
void fun(int *p) { int q = 10; p = &q; } int main() { int r = 20; int *p = &r; fun(p); printf("%d", *p); return 0; }
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1 votes
1 answer
1765
Output and please explain
#include<stdio.h> int main() { char *s = "Geeks Quiz"; int n = 7; printf("%.*s", n, s); return 0; }
#include<stdio.h>int main(){char *s = "Geeks Quiz";int n = 7;printf("%.*s", n, s);return 0;}
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0 votes
1 answer
1766
Why are constant variables considered to be as lvalue ?
when constant type variables cannot be modified then why do we consider them as lvalues , why not only r-values ?
when constant type variables cannot be modified then why do we consider them as lvalues , why not only r-values ?
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