C

How many main() function we can have in our project?

No Limit

Depends on Compiler

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What will be output if you will compile and execute the following c code?
struct marks{
int p:3;
int c:3;
int m:2;
};
void main(){
struct marks s={2,-6,5};
printf(“%d %d %d”,s.p,s.c,s.m);
}

2 -6 5

2 -6 1

2 2 1

Compiler error

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The preprocessor provides the ability for _______________.

The inclusion of header files

The inclusion of macro expansions

Conditional compilation and line control

All of the mentioned

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Determine Output:

#include<stdio.h>
#define a 10
void main()
{
      #define a 50
      printf("%d", a);
}

Compiler Error

None of these

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What will be the output of the program?

#include<stdio.h>

#define MIN(x, y) (x<y)? x : y;

int main()

{

int x=3, y=4, z;

z = MIN(x+y/2, y-1);

if(z > 0)

printf(“%dn”, z);

return 0;

}

no output

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What will be output if you will compile and execute the following c code?
void main(){
static main;
int x;
x=call(main);
clrscr();
printf(“%d “,x);
getch();
}
int call(int address){
address++;
return address;
}

Garbage value

Compiler error

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#pragma exit is primarily used for?

Checking memory leaks after exiting the program

Informing Operating System that program has terminated

Running a function at exiting the program

No such preprocessor exist

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Can you combine the following two statements into one?

char *p;

p = (char*) malloc(100);

char p = *malloc(100);

char *p = (char) malloc(100);

char *p = (char*)malloc(100);

char *p = (char *)(malloc*)(100);

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A pointer that is pointing to NOTHING is called ____

VOID Pointer

DANGLING Pointer

NULL Pointer

WILD Pointer

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What is the work of the break keyword?

Halt execution of a program

Restart execution of a program

Exit from loop or switch statement

None of the above

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What will be the output of the program ?

#include<stdio.h>

int main()

{

static char *s[] = {“black”, “white”, “pink”, “violet”};

char **ptr[] = {s+3, s+2, s+1, s}, ***p;

p = ptr;

++p;

printf(“%s”, **p+1);

return 0;

}

ink

ite

let

ack

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Relational operators cannot be used on ____________

structure

long

strings

float

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C was primarily developed as

System programming language

General purpose language

Data processing language

None of the above.

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A “C” variable cannot start with

A number

A special symbol other than underscore

Both of the above

An alphabet

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What is the correct value to return to the operating system upon the successful completion of a program?

-12

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If ASCII value of ‘x’ is 120, then what is the value of the H, if
H = (‘x’ – ‘w’ ) / 3;

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“My salary was increased by 15%” Select the statement, which will EXACTLY reproduce the line of text above

printf(“My salary was increased by 15/%!”);

printf(“My salary was increased by 15%!”);

printf(“My salary was increased by 15’%’!”);

printf(“My salary was increased by 15%%!”);

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    void main()
```
```
    {
```
```
        int x = 1, z = 3;
```
```
        int y = x << 3;
```
```
        printf(" %d\n", y);
```
```
    }
```

-2147483648

-1

Run time error

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        int a = 10, b = 5, c = 5;
```
```
        int d;
```
```
        d = a == (b + c);
```
```
        printf("%d", d);
```
```
    }
```

Syntax error

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    void main()
```
```
    {
```
```
        int y = 3;
```
```
        int x = 5 % 2 * 3 / 2;
```
```
        printf("Value of x is %d", x);
```
```
    }
```

Value of x is 1

Value of x is 2

Value of x is 3

Compile time error

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The name of the variable used in one function cannot be used in another function.

True

False

May be

None of the mentioned

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        j = 10;
```
```
        printf("%d\n", j++);
```
```
        return 0;
```
```
    }
```

Compile time error

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        float f1 = 0.1;
```
```
        if (f1 == 0.1f)
```
```
            printf("equal\n");
```
```
        else
```
```
            printf("not equal\n");
```
```
    }
```

equal

not equal

output depends on compiler

none of the mentioned

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What will be the output of the following C code on a 32-bit machine?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        int x = 10000;
```
```
        double y = 56;
```
```
        int *p = &x;
```
```
        double *q = &y;
```

        printf("p and q are %d and %d", sizeof(p), sizeof(q));

```
        return 0;
```
```
    }
```

p and q are 4 and 4

p and q are 4 and 8

compiler error

p and q are 2 and 8

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What is the size of an int data type?

4 Bytes

8 Bytes

Depends on the system/compiler

Cannot be determined

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        int i = 3;
```
```
        int l = i / -2;
```
```
        int k = i % -2;
```
```
        printf("%d %d\n", l, k);
```
```
        return 0;
```
```
    }
```

Compile time error

-1 1

1 -1

Implementation defined

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    void main()
```
```
    {
```
```
        int k = 4;
```
```
        float k = 4;
```
```
        printf("%d", k)
```
```
    }
```

Compile time error

4.0000000

4.4

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        const int i = 10;
```
```
        int *ptr = &i;
```
```
        *ptr = 20;
```
```
        printf("%d\n", i);
```
```
        return 0;
```
```
    }
```

Compile time error

Compile time warning and printf displays 20

Undefined behaviour

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    void main()
```
```
    {
```
```
        int const k = 5;
```
```
        k++;
```
```
        printf("k is %d", k);
```
```
    }
```

k is 6

Error due to const succeeding int

Error, because a constant variable can be changed only twice

Error, because a constant variable cannot be changed

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What will be the output of the following C code?

```
    #include <stdio.h>
```
```
    #include <string.h>
```
```
    int main()
```
```
    {
```
```
        char *str = "x";
```
```
        char c = 'x';
```
```
        char ary[1];
```
```
        ary[0] = c;
```

        printf("%d %d", strlen(str), strlen(ary));

```
        return 0;
```
```
    }
```

1 1

2 1

2 2

1 (undefined value)

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