C Language MCQ - English
How many bytes are occupied by near, far and huge pointers (DOS)?
near=2 far=4 huge=4
near=4 far=8 huge=8
near=2 far=4 huge=8
near=4 far=4 huge=8
Answer : A
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1) What will be the output of the following C code? #include <stdio.h> int *f();
int main()
{
int *p = f();
printf("%d\n", *p);
}
int *f()
{
int *j = (int*)malloc(sizeof(int));
*j = 10;
return j;
}
10
Compile time error
Segmentation fault/runtime crash since pointer to local variable is returned
Undefined behaviour
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2) Comment on the following C statement. const int *ptr;
You cannot change the value pointed by ptr
You cannot change the pointer ptr itself
You May or may not change the value pointed by ptr
You can change the pointer as well as the value pointed by it
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3) What would be the equivalent pointer expression for referring the array element a[i][j][k][l]
4) What will be the output of the program ? #include<stdio.h>
int main()
{
char str[20] = "Hello";
char *const p=str;
*p='M';
printf("%s\n", str);
return 0;
}
5) A pointer is
A keyword used to create variables
A variable that stores address of an instruction
A variable that stores address of other variable
All of the above
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