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02
5
24588
x
24588
Pointer variable
5
A
3.14
x
ch
y
Integer
Real
Character
Types of constant
Primary Constants Secondary Constants
Data Types
Numeric Non-NumericPointer
Array
Structure
Union
Integer Real Character
String
5
A
3.14
x
ch
y
Integer
Real
Character
Types of constant
Primary Constants Secondary Constants
Data Types
Numeric Non-NumericPointer
Array
Structure
Union
Integer Real Character
String
Data Type
Built – in Data Type
•int•float•char
Derived Data Type
•pointer
int *ptr;
* ptr
ptr is pointer variable
x
ptr
int x;
ptr = &x;&: Address Operator
ptr
float y;char ch;float *fptr;char *cptr;fptr = &y;cptr = &ch;
x
y
fptr
ch
cptr
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