C INTERVIEW QUESTIONS AND ANSWERS

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HOW TO CHECK WHETHER MACRO IS DEFINED OR NOT IN A C PROGRAM?
WHAT IS THE DIFFERENCE BETWEEN MEMCPY() & STRCPY() FUNCTIONS IN C?
WHAT IS THE DIFFERENCE BETWEEN MEMCPY() & MEMMOVE() FUNCTIONS IN C?
IS THERE ANY INBUILT LIBRARY FUNCTION IN C TO REMOVE LEADING AND TRAILING SPACES FROM A STRING? HOW WILL YOU REMOVE THEM IN C?
WHAT IS THE DIFFERENCE BETWEEN STRCPY() & STRNCPY() FUNCTIONS IN C?
CAN ARRAY SUBSCRIPTS HAVE NEGATIVE VALUE IN C?
WHAT IS THE DIFFERENCE BETWEEN ARRAY AND STRING IN C?
WHAT IS POINTER IN C?
WHAT IS NULL POINTER IN C?
WHAT IS NULL IN C?
WHAT IS VOID POINTER IN C?
WHAT IS DANGLING POINTER IN C?
WHAT IS WILD POINTER IN C?
WHAT IS FILE POINTER IN C?
WHEN CAN VOID POINTER AND NULL POINTER BE USED IN C?
WHAT IS CONST POINTER IN C?
IS POINTER ARITHMETIC A VALID ONE? WHICH ARITHMETIC OPERATION IS NOT VALID IN POINTER? WHY?
IS VOID POINTER ARITHMETIC A VALID ONE? WHY?
WHAT IS THE DIFFERENCE BETWEEN NULL AND ZERO?
WHAT IS THE DIFFERENCE BETWEEN NULL POINTER AND UNINITIALIZED POINTER IN C?

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