Advanced C Important Questions

 Pointers

-Q. What is a pointer?

-Q. Concept of pointer to pointer with example.

-Q. What is formal parameter and actual parameters.

Q. What is dynamic memory allocation?

Q. Explain two methods of passing arguments to function with example/ Call by value and Call by reference.

-Q. What is meaning of & and * operators in pointer?

Q. Various operations possible on poitner.

Strings

Q. Which function is used to join two strings? Give syntax.

---Q. Give syntax and use of following functions:

i) strlen 

ii) strcat

iii)strcmp

iv)strcpy

v)strrev

Structures

----Q. Give the difference between structure and union.

File Handling

Q. Define file. Explain any four file functions.

Q. Which function is used to move file pointer?

Q. Give syntax and use of following functions:

i) getchar

ii) putchar

iii) puts

iv) printf

v) scanf

vi) fopen

vii) fflush()

viii) remove()

ix) rename()

-x) ftell()

xi) putc()

xii) fclose()

xiii) fopen()

(xiv) fgets()

(xv) fputs()

xvi) fcloseall()

xvii) gets()

xviii) rewind()

Preprocessor

--i) Define Macro

ii) Define preprocessor.

--ii) What are command line arguments? Explain.

How are they declared? Give advantages.

iii) Macro preprocessor directives with examples.