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Are you looking for bright career in the C Interview Questions? Then we have provided all the necessary things like C Interview Questions Interview Question and Answers on our site page, not only the Question and Answers we have also provided the various job roles in C Interview Questions. In order to clear the C Interview Questions interview in the first attempt one must prepare well on all the topics of C Interview Questions.
There are actually two ways you can do this. Likewise, the statement "x --" means to decrement the value of x by 1.
Edit Reply. In this article, we will be discussing 30 most asked C programming interview questions during technical interview rounds of various companies. The below given C interview questions range from Easy to Advanced Level. Even if you are a beginner in C, these C programming tricky interview questions will help you understand and revise better. Also, after you finish going through this, you can also check out.
To receive placement preparation tips and placement related updates on various companies, come join the largest Passouts Community on FACEs Telegram and WhatsApp, and take your placement preparation to the next level. The process is as shown below. Header files contain the definitions and set of rules of the functions being used in the programs. For example , when you use printf or scanf in your program, you nee to include stdio.
Else your compiler will show an error. This is because, the standard input and output functions printf and scanf are stored in this header file. So similarly every header file stores a set of predefined functions which makes it easy to program. When the preprocessor sees a include, it replaces the include with the contents of the specified header. By using include guard , you can prevent a header file from being included multiple times during the compilation process.
So basically, if a header file with proper syntax is included twice, the second one gets ignored. Yes, compilation is possible, but the execution is not possible. However, if you use define, we can execute the program without the need of main. For Example:. Tricky question. Int data type is capable of storing values between to To store a modifier has to be used with int data type and hence Long Int can be used. If there are no negative values, unsigned int can also be used.
There are 32 various keywords in C and each of them performs a defined function. These keywords are also called as Reserved words. Click here to know the functions of the below keywords. Global variables are variables which are defined outside the function. Whereas, static global variables are private to the source file where they are defined and do not conflict with other variables in other source files which would have the same name. A memory leak occurs when programmers create a memory in the heap and forget to delete it.
It decreases the efficiency of the performance of the system. First, the value stored in the variable a gets incremented and then gets assigned to the same variable. The value stored in the variable a gets incremented after the execution of the particular line. While 1 is an infinite loop which will run till a break statement occurs.
Similarly, while 2 , while 3 , while etc will all give infinite loops only. Whereas, While 0 does the exact opposite of this. When while 0 is used, it means the conditions will always be false. Thus, as a result, the program will never get executed.
A pointer pointing to a dereferenced memory location is called dangling pointer. There are three different ways where a pointer can act as a dangling pointer. To understand in detail, check this - Dangling pointer in c with examples. Null pointers generally do not point to a valid location. A pointer is initialized as NULL if we are not aware of its value at the time of declaration. Whereas, Void pointers are general-purpose pointers which do not have any type associated with them and can contain the address of any type of variable.
So basically, the type of data that it points to can be anything. In pass by value , changes made to the arguments in the called function will not be reflected in the calling function.
Whereas in pass by reference , the changes made to the arguments in the called function will be reflected in the calling function. The below image will help you get a good understanding, however, click here to know the difference between Pass by value and Pass by reference in detail.
A pointer variable that contains the address of another pointer variable is called as a pointer on a pointer. For example , consider the following program.
Malloc and Calloc differ in the number of arguments used, their initialization methods and also in the return values. Check out the detailed differences here. Free Resources Articles Tests Videos. Login Sign Up. Our Campuses. Hyderabad Bengaluru Coimbatore Kollam Chennai. Company-Specific Courses. Articles Tests Videos. Our Story Contact Us. Link copied to clipboard.
Share away! If you have any feedback about this article and want to improve this, please write to enquiry faceprep. Explore 'c'. Articles Practice Exercises. Event Name. Company Visiting. Date of drive. Drive Type Off Campus. On Campus. Pool drive. Event Link. More Details. Post as MCQ. Choose Category. Choose a Topic Please choose Category first. Choose a Company Optional. Name of the Company. No Opinion. Job Title. Please describe your Interview Experience!
What rounds did you appear for? Aptitude - General. Aptitude - Technical. Writing Ability. Group Discussion. Interview - HR. Interview - Technical. Interview Questions What kind of questions were you asked in round basis? Name of the round. Answer optional. How difficult was this interview? Yes, and I accepted. Yes, but I declined. No Offer. I think content is wrong.
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Dear readers, these C Programming Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of C Programming. It de-refers twice to point to the data held by the designated pointer variable. By default every local variable of the function is automatic auto. Break can appear only with in the looping control and switch statement. The purpose of the break is to bring the control out from the said blocks.
IF you prepare well enough this list of Frequently asked c interview question answer fresher, you will surely get an advantage over the competition. Write a program to find factorial of the given number. Recursion is thus a process of defining something in terms of itself. Program: To calculate the factorial value using recursion. Write a program to check whether the given number is even or odd. Example 2: If entered number is an odd number. Download Placement Papers Company Wise.
C is a mid-level and procedural programming language. The Procedural programming language is also known as the structured programming language is a technique in which large programs are broken down into smaller modules, and each module uses structured code. This technique minimizes error and misinterpretation. More details. C is known as a mother language because most of the compilers and JVMs are written in C language.
Despite being almost 50 years old, C is still leading the programming scene from the forefront. The programming language has a wide variety of applications and is also the inspiration for a variety of modern, powerful programming languages, such as Java , C , and Python. Although there are very few job profiles these days that only require a high-level proficiency in C, most programming jobs necessitate a good understanding of the C programming language's fundamental concepts. So, many programming job interviews involve C Interview questions and answers. Answer : Header files store the definitions and set of rules governing the C programming language's different built-in functions. For instance, the printf and scanf functions are defined in the stdio. Every header file contains a set of predefined functions, meant to make programming in C simpler.
What is a pointer? A pointer is a special variable, which stores the memory address. Ampersand in front of a variable gets its address and asterisk in front of a pointer gets its value. What is null pointer? Null pointer is a pointer which cannot point to anywhere in the program, but uninitialised pointer can point to anywhere in the users program. In C, if the pointer tried to access 0th location, operating system kills the running program because operating system does not allow to access 0 th value. Define function pointer?
В шифровалке. Спускаясь по лестнице, она пыталась представить себе, какие еще неприятности могли ее ожидать. Ей предстояло узнать это совсем. ГЛАВА 2 На высоте тридцать тысяч футов, над застывшим внизу океаном, Дэвид Беккер грустно смотрел в крохотный овальный иллюминатор самолета Лирджет-60. Ему сказали, что бортовой телефон вышел из строя, поэтому позвонить Сьюзан не удастся. - Что я здесь делаю? - пробормотал .
У нее возникло ощущение, что она разговаривает с абсолютно незнакомым человеком.
Пусть ТРАНСТЕКСТ работает, - принял решение Стратмор. - Я хочу быть абсолютно уверен, что это абсолютно стойкий шифр. Чатрукьян продолжал колотить по стеклу. - Ничего не поделаешь, - вздохнул Стратмор. - Поддержи .
Страна. Однако в списке было еще одно сообщение, которого он пока не видел и которое никогда не смог бы объяснить. Дрожащей рукой он дал команду вывести на экран последнее сообщение. ОБЪЕКТ: ДЭВИД БЕККЕР - ЛИКВИДИРОВАН Коммандер опустил голову.
Издать? - Он с сомнением покачал головой.
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