In C++, data types are classified into two categories: primitive and non-primitive. In this post, we will focus on primitive data types in C++.
Primitive data types are the fundamental data types provided by the language itself, and they are used to represent basic values. They are built-in data types and do not require any special header file to be included in the program. There are eight primitive data types in C++:
1. Boolean: The Boolean data type is used to represent true/false values. It has two possible values: true and false.
2. Character: The character data type is used to represent a single character. It can store any character from the ASCII table.
3. Integer: The integer data type is used to represent whole numbers. It can be signed or unsigned and can have different sizes.
4. Floating-point: The floating-point data type is used to represent real numbers. It can store fractional values and has different sizes.
5. Double: The double data type is used to represent double-precision floating-point numbers. It can store larger numbers with greater precision than the floating-point data type.
6. Void: The void data type is used to represent the absence of a value. It is commonly used as the return type of functions that do not return a value.
7. Wide Character: The wide character data type is used to represent wide characters, which are characters that require more than one byte to store. It can store any character from the Unicode table.
8. Long: The long data type is used to represent integers with a larger range than the standard integer data type.
These primitive data types in C++ are used to declare variables, which are used to store values. For example, to declare a variable of type integer, we can use the following syntax:
int myInt;
This declares a variable called myInt of type int. We can then assign a value to this variable using the assignment operator =: