Pointer Basics in C Language part-1

O LEVEL -PAPER 3rD -- M3-R4

C  LANGUAGE

OBJECTIVES

POINTER BASICS

EXTENDED CONCEPT OF POINTER

POINTER'S ARITHMETIC

APPLICATION OF POINTER

POINTER BASICS

Here dos base architect give only 16byte memory space to our program therefore our memory range between 0 to 65535.

&=ADDRESS OF OPERATOR

*=INDIRECTION OPERATOR

EXAMPLE : --

NOTE :-- In above example 1st printf() print the value of x i.e 5 and 2nd printf() print 

                 address of x i.e 2048(2048 assumed value ) and 3rd printf() print x value i.e 5                                 because when '*&' come together then it's cancel each other so '*& 'means 

                 simply x. Remember while printing address of variable we always use %u instead

                of %d because of memory range that %u give exact value of memory address as

               compare of %d. for example --

                 

SOME POINT TO REMEMBER :--

Here x is declared as ordinary variable but j store with *j to indicate compiler that it's a special 

variable in which only address can store.

DEFINATION OF POINTER

EXAMPLE :--

BASE ADDRESS 

Here In above point to remember that we store only that data type variable in memory in which its declared and base address means address of variable i.e 'a' has base address of 1000 and 1001 but we consider only 1000 as base address.



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