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Welcome to the Library Functions MCQs Page

Dive deep into the fascinating world of Library Functions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Library Functions, a crucial aspect of C Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Library Functions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within C Programming.

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Check out the MCQs below to embark on an enriching journey through Library Functions. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of C Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Library Functions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Library Functions MCQs | Page 7 of 13

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Q61.
What will be the output of the program?
#include<stdio.h>
#define PRINT(i) printf("%d,",i)

int main()
{
    int x=2, y=3, z=4;
    PRINT(x);
    PRINT(y);
    PRINT(z);
    return 0;
}
Discuss
Answer: (a).2, 3, 4,
Q62.
What will be the output of the program?
#include<stdio.h>
#define MAX(a, b, c) (a>b ? a>c ? a : c: b>c ? b : c)

int main()
{
    int x;
    x = MAX(3+2, 2+7, 3+7);
    printf("%d\n", x);
    return 0;
}
Discuss
Answer: (c).10
Q63.
Point out the error in the program
#include<stdio.h>
#define SI(p, n, r) float si; si=p*n*r/100;
int main()
{
    float p=2500, r=3.5;
    int n=3;
    SI(p, n, r);
    SI(1500, 2, 2.5);
    return 0;
}
Discuss
Answer: (c).Error: Multiple declaration of si
Q64.
Point out the error in the program
#include<stdio.h>

int main()
{
    int i;
    #if A
        printf("Enter any number:");
        scanf("%d", &i;);
    #elif B
        printf("The number is odd");
    return 0;
}
Discuss
Answer: (a).Error: unexpected end of file because there is no matching #endif
Q65.
Which of the following are correct preprocessor directives in C?

1: #ifdef
2: #if
3: #elif
4: #undef
Discuss
Answer: (d).1, 2, 3, 4
Q66.
Which of the following are correctly formed #define statements in C?
Discuss
Answer: (c).#define CUBE(X)(X*X*X)
Q67.
In the following code, the P2 is Integer Pointer or Integer?
typedef int *ptr;
ptr p1, p2;
Discuss
Answer: (b).Integer pointer
Q68.
In the following code what is 'P'?
typedef char *charp;
const charp P;
Discuss
Answer: (a).P is a constant
Q69.
What is x in the following program?
#include<stdio.h>

int main()
{
    typedef char (*(*arrfptr[3])())[10];
    arrfptr x;
    return 0;
}
Discuss
Answer: (c).x is an array of three function pointers
Q70.
What will be the output of the program?
#include<stdio.h>

int main()
{
    enum color{red, green, blue};
    typedef enum color mycolor;
    mycolor m = red;
    printf("%d", m);
    return 0;
}
Discuss
Answer: (b).0

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