int.unm.md

int.unm

Syntax & Usage

Note

This function handles the unary minus operator, it negates the value of the given number.

function int.unm(x, self_changed) -- reverses the sign.

Parameter	Type	Description
x	int object only	Required. The value whose sign will be reversed.
self_changed	boolean (default: false)	Optional. Enable if you want to change the value in this object only. (disable copy object for optimization)

Return Value:

1. int object

Example:

local int = require("int") -- import module

local x, y = int.new("-12.2", "12.3456")
print(int.unm(x)) -- output: 12.2
print(int.unm(y)) -- output: -12.3456

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operators

This feature lets you to call a function with an operator.

Important

function was embedded in __unm on metadata.

local int = require("int") -- import module

local x, y = int.new("-123", "12.3456")
print(-x) -- output: 123
print(-y) -- output: -12.3456

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methods

This feature lets you to call functions on an object.

local int = require("int") -- import module

local x, y = int.new("-12.2", "12.3456")
print(x:unm()) -- output: 12.2
print(y:unm()) -- output: -12.3456

Tip

In this example, a function inside the object is called and returns the object itself as the input.

also you can do like this:

local int = require("int") -- import module

local x, y = int.new("-12.2", "12.3456")

-- this works like "print(int.unm(x))"
print(y.unm(x)) -- output: 12.2

-- this works like "print(int.unm(y))"
print(x.unm(y)) -- output: -12.3456

Tip

In this example, a function inside the object is called but a different object is used as the input.

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function & methods
operators