C Interview Questions

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Answered by: baseersd

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Member Since Jun-2007 | Answered On : Jul 27th, 2007

Code
 
#include
int main()
{
unsigned int i = 0, j = 0, sum = 1, num;
printf("nEnter the limit for the series ");
scanf("%d", &num);
while (sum < num) {
printf("%d ", sum);
i = j;
j = sum;
sum = i + j;
}
getch();
}
 

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Answered by: jintojos

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Member Since May-2008 | Answered On : Jul 17th, 2008

void main()
 {
          int a=10,b=20;
          while(b--) a++;
           printf("Sum is :%d",a);  
 }

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Answered by: mohinuddinkhan

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Member Since Oct-2009 | Answered On : Oct 30th, 2009

Let's understand this by going through the following code

#include<stdio.h>
int f1();
int f2();

void main()
 {
 printf("%dt%d",f1(),f2());
}

int f1()
{
 printf("f1() enteredn");
 return 4;
}

int f2()
{
 printf("f2() enteredn");
 return 5;
}

O/P-

f2() entered
f1() entered
4        5

we can conclude f2() is 1st executed
then f1() and in the end printf().hence we can say the precedence of execution of functions are from right to left.

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Answered by: Prasad

Constant pointer is NOT pointer to constant. Constant pointer means the pointer is constant. For eg:
Constant Pointer
int * const ptr2 indicates that  ptr2 is a pointer which is constant. This means that ptr2 cannot be made to point to another integer. However the integer pointed by ptr2 can be changed.



Where as a Pointer to constant is
const int * ptr1 indicates that ptr1 is a pointer that points to a constant integer. The integer is constant and cannot be changed. However, the pointer ptr1 can be made to point to some other integer.

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Answered by: kiranb_rvce

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Member Since Jun-2008 | Answered On : Jun 6th, 2008

if ( ! ( printf("Hello ") ) )
printf("Hello");
else
printf("World");