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Data Types in Flow-Wing

1. Integer Data Type (int)​

The int datatype represents a 32-bit signed integer. It is used to store numeric values without any fractional components.

Example Usage:​

var x: int = 42

Properties:​

  • Range: -2,147,483,648 to 2,147,483,647
  • Default Value: 0
  • Usage: Commonly used for counting, indexing, and simple arithmetic operations.

2. Decimal Data Type (deci)​

The deci datatype is used to store floating-point numbers with decimal points.

Example Usage:​

var y: deci = 3.14

Properties:​

  • Precision: Can handle a wide range of decimal values
  • Usage: Commonly used for financial calculations, scientific computations, and anywhere precision with decimals is required.

3. Boolean Data Type (bool)​

The bool datatype represents a boolean value, which can be either true or false.

Example Usage:​

var isActive: bool = true

Properties:​

  • Values: true or false
  • Usage: Commonly used for conditional statements, flags, and toggles.

4. String Data Type (str)​

The str datatype is used to store sequences of characters.

Example Usage:​

var name: str = "flowwing"
print(name, name[2])

Properties:​

  • Usage: Commonly used for text processing, displaying messages, and storing any form of textual data.

5. Nothing Data Type (nthg)​

The nthg datatype represents the absence of a value, often used as a return type for functions that do not return any value.

Example Usage:​

fun doNothing() -> nthg {
  /; This function does not return anything
}

Properties:​

  • Usage: Used to indicate no return value from a function.

6. 32-bit Decimal Data Type (deci32)​

The deci32 datatype represents a 32-bit floating-point number, used for storing decimal values with less precision compared to deci.

Example Usage:​

var z: deci32 = 1.23

Properties:​

  • Precision: Lower precision compared to deci
  • Usage: Suitable for scenarios where memory usage is a concern and high precision is not required.

7. 8-bit Integer Data Type (int8)​

The int8 datatype represents a 8-bit signed integer, used for storing small integer values.

Example Usage:​

var x: int8 = Int8(42)

Properties:​

  • Range: -128 to 127
  • Usage: Suitable for scenarios where memory usage is a concern and high precision is not required.

8. Nir Data Type (Nir)​

The Nir datatype represents the null or Nirast value, often used as a return type for functions that can return null values.

Example Usage:​

const val: Nir, err: Err::Result = File.read("file.txt","r")

if err != Nir {
print(err.getMessage())
}

Properties:​

  • Usage: Used to indicate that a function can return null values.