Primitive Data Types

i32

i32 is a 32-bit signed integer type. It can represent whole numbers in the range from -2,147,483,648 to 2,147,483,647. This type is commonly used for numeric values where memory efficiency and performance are important, and negative values may be required.

i16

i16 is a 16-bit signed integer type. It can represent whole numbers in the range from -32,768 to 32,767. This type is useful when you need to save memory and the range of values fits within these limits.

u32

u32 is a 32-bit unsigned integer type. It can represent whole numbers from 0 to 4,294,967,295. Use this type when you need a large range of positive numbers and do not require negative values.

u16

u16 is a 16-bit unsigned integer type. It can represent whole numbers from 0 to 65,535. This type is suitable for small positive numbers and is often used for indexing or representing data where negative values are not needed.

f32

f32 is a 32-bit floating-point type. It can represent fractional numbers (numbers with decimals) with approximately 7 decimal digits of precision. Use f32 when you need to store real numbers and memory usage is a concern.

f64

f64 is a 64-bit floating-point type. It can represent fractional numbers with approximately 15 decimal digits of precision. f64 is the default floating-point type in many languages and is preferred when higher precision is required.

string

string is essentially a pure C-style string in the style of char* . It represents a sequence of characters terminated by a null byte (\0). Strings are used to store and manipulate text data. Since they are pointers to memory, care must be taken to manage memory allocation and deallocation to avoid leaks or buffer overflows. Operations such as concatenation, comparison, and length calculation are typically performed using standard library functions.

bool

bool is a boolean type that can hold one of two values: true or false. It is commonly used for logical operations, conditional statements, and representing binary states.

byte

byte is an 8-bit unsigned integer type, equivalent to uint8_t in C. It can represent values from 0 to 255 and is often used for raw data, buffers, or binary protocols.

char

char is a single 8-bit character type, typically used to represent individual ASCII characters. It is the building block of strings and can also be used for character manipulation.

Example Table

Type	Size (bits)	Signed	Range / Description
i32	32	Yes	-2,147,483,648 to 2,147,483,647
i16	16	Yes	-32,768 to 32,767
u32	32	No	0 to 4,294,967,295
u16	16	No	0 to 65,535
f32	32	N/A	~7 decimal digits precision
f64	64	N/A	~15 decimal digits precision
string	N/A	N/A	Sequence of characters, null-terminated
bool	8	N/A	true or false
byte	8	No	0 to 255
char	8	N/A	Single ASCII character