Basic Data Types in C++

2. A data type determines the type and the operations
that can be performed on the data. C++ provides
various data types and each data type is represented
differently within the computer's memory.

3. Classified of Basic Data Types in C++
There are many data-types available in C++.
They are classified under two categories:
Built-In or Fundamental Data types
Derived or User-Defined Data types

4. DATA TYPES
FUNDAMENTAL DATA
TYPES
USER DEFINED DATA
TYPES
DATA TYPE MODIFIERS
DERIVED DATA TYPES
Basic Data Types in C++

6.  Built-in data types are the most basic data-types in C++.
 The term built-in means that they are pre-defined in C++
and can be used directly in a program.
Example:
• Character char
• Integer int
• Floating point float
• Double floating point double
 Apart from these, we also have void and bool data types.

7. They are composed of built-in data types.
Examples are :
array, structure, union, class, pointers etc

8. User-Defined Data types
User-defined data types are those which are
first declared and defined by the user before
use.
Example: struct ; union ; class; enumeration; are
User defined types

9. Char: Characters refer to the alphabet, numbers and other
characters (such as {, @, #, etc.) defined in the ASCII character set.
Int: Numbers without the fractional part represent integer data. In C++, the int
data type is used to store integers such as 4, 42, 5233, -32, -745.
Floating point Data Type: A floating-point data type is used to store real
numbers such as 3 .28, 64. 755765, 8.01, -24.53.
Void: The void data type is used for specifying an empty parameter list unction
and return type for a function.
Bool : The boo1data type can hold only Boolean values, that is; either true or false,
where true represents 1 and false represents 0.

10. Array : An array is a set of elements of the same data type that are referred to
by the same name.
Function: A function is a self-contained program segment that carries out a
pacific well-defined task.
Reference: A reference is an alternative name for a variable.
That is, a reference is an alias for a variable in a program.

11. 11Hridoy || Roll 20 || CSE E42 || OOP || DIU