Datatype in C++ in Tamil || C++ Datatypes || Built-in, User Defined, Derived Datatype
Datatype in C++ in Tamil || C++ Datatypes || Built-in, User Defined, Derived Datatype
Datatype:
Datatype is Used to define the type of data.
Built in Data type
Derived Data type
User defined Data Type
Built in Data Type:
int, float, double, char and void.
Integer:
The int keyword is used to denote integers.
Its size is usually 4 bytes. Meaning, it can store values from -2147483648 to 2147483647.
For example,
int age = 15;
Float and Double:
float and double are used to store floating-point numbers.
Size of float = 4 bytes
Size of double = 8 bytes.
For example,
float pi = 3.14;
double volume = 134.64534;
Character:
Keyword char is used for characters.
Its size is 1 byte.
Characters in C++ are enclosed inside single quotes ' '.
Void:
The void keyword means "nothing" or "no value“.
User Defined Type:
The data types that are defined by the user are called user defined data type.
Example:
Structure
Union
Class
Enumeration
Datatypes:
Data types that are derived from fundamental data types are derived types.
For example: arrays, pointers, function, references, etc.
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