C and c interview questions

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c and c interview questions

Interview Questions in C & C++ Programming by Yashavant P. Kanetkar

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Top 40 C Programming Interview Questions and Answers

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. When control reaches for expression-1 is executed first. A static local variables retains its value between the function call and the default value is 0.

Therefore, when a variable is declared, the program knows the data type of that variable. In case of function declaration, the program knows what are the arguments to that functions, their data types, the order of arguments and the return type of the function. Therefore, we can think of definition as a super set of declaration. What are different storage class specifiers in C? Ans: auto, register, static, extern. What is scope of a variable?

These features are absent in C. What are the differences between references and pointers? Both references and pointers can be used to change local variables of one function inside another function. Both of them can also be used to save copying of big objects when passed as arguments to functions or returned from functions, to get efficiency gain. Despite above similarities, there are following differences between references and pointers. References are less powerful than pointers 1 Once a reference is created, it cannot be later made to reference another object; it cannot be reseated.

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Have you prepared to attend the job interview? Are you confused in job research? Then no problem we have the right answer to you in in our Wisdomjobs site page. Question 1. Question 2. Answer : There are basically two differences between declaration and definition :.

C programming language was developed in between and by Dennis Ritchie at Bell Labs. He uses this new programming language for re-implement UNIX operating system. C is a high-level structured oriented programming language use to general purpose programming requirements. Basically, C is a collection of its library functions. It is also flexible to add user define functions and include those in C library. Q 1 What are the key features in C programming language?


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