Explore topic-wise MCQs in Engineering.

Is there any difference in the #define and typedef in the following code?

typedef char * string_t;
#define string_d char *;
string_t s1, s2;
string_d s3, s4;

Are the properties of i, j and x, y in the following program same?

typedef unsigned long int uli; uli i, j; unsigned long int x, y; 

Can I increase the size of statically allocated array?

When we dynamically allocate memory is there any way to free memory during run time?

Declare the following statement?
"An array of three pointers to chars".

Declare the following statement?
"A pointer to an array of three chars".

Which header file should be included to use functions like malloc() and calloc()?

What function should be used to free the memory allocated by calloc() ?

How will you free the memory allocated by the following program?

#include<stdio.h>
#include<stdlib.h>
#define MAXROW 3
#define MAXCOL 4 int main()
{ int **p, i, j; p = (int **) malloc(MAXROW * sizeof(int*)); return 0;
}

What is x in the following program?

#include<stdio.h> int main()
{ typedef char (*(*arrfptr[3])())[10]; arrfptr x; return 0;
}

In the following code what is 'P'?

typedef char *charp;
const charp P;

In the following code, the P2 is Integer Pointer or Integer?

typedef int *ptr; ptr p1, p2; 

Declare the following statement?
"A pointer to a function which receives an int pointer and returns float pointer".

Declare the following statement?
"A pointer to a function which receives nothing and returns nothing".