What are all 7 primitive datatypes in C++?

There are several primitive data types that are built into the language.

1. Boolean (‘bool’): Represents a logical value and can have two possible states: ‘true’ or ‘false’. It is typically used for conditional statements and Boolean expressions. The size of a ‘bool’ is implementation-defined, but it is usually 1 byte.

2. Character (‘char’): Represents a single character or a small integer value. It can hold characters from the ASCII character set or extended character sets like Unicode. The size of a ‘char’ is 1 byte.

3. Integer types (‘int’, ‘short’, ‘long’, ‘long long’): Represent whole numbers without decimal points. The different integer types provide varying ranges of values they can hold. The sizes of these types depend on the compiler and platform:

- ‘int’: Typically represents a signed integer. The size is usually 4 bytes.

- ‘short’: Represents a shorter signed integer. The size is usually 2 bytes.

- ‘long’: Represents a longer signed integer. The size is usually 4 bytes.

- ‘long long’: Represents a longer signed integer with a larger range. The size is usually 8 bytes.

4. Floating-Point types (‘float’, ‘double’): Represent decimal numbers (real numbers) with single or double precision. Floating-point types can store both small and large values. The sizes of these types depend on the compiler and platform:

- ‘float’: Represents single-precision floating-point numbers. The size is usually 4 bytes.

- ‘double’: Represents double-precision floating-point numbers. The size is usually 8 bytes.

5. Void (‘void’): Denotes the absence of a type. It is commonly used as the return type for functions that do not return a value, or to indicate an empty argument list.

It's important to note that the sizes mentioned are typical, but they may vary depending on the compiler, platform, and implementation.