gleam/int

Types

Error value when trying to operate with a base out of the allowed range.

pub type InvalidBase {
  InvalidBase
}

Constructors

  • InvalidBase

Functions

pub fn absolute_value(num: Int) -> Int

Returns the absolute value of the input.

Examples

> absolute_value(-12)
12

> absolute_value(10)
10
pub fn clamp(n: Int, min min_bound: Int, max max_bound: Int) -> Int

Restricts an int between a lower and upper bound.

Examples

> clamp(40, min: 50, max: 60)
50
pub fn compare(a: Int, with b: Int) -> Order

Compares two ints, returning an order.

Examples

> compare(2, 3)
Lt

> compare(4, 3)
Gt

> compare(3, 3)
Eq
pub fn digits(number: Int, base: Int) -> Result(
  List(Int),
  InvalidBase,
)

Splits an integer into its digit representation in the specified base

Examples

> digits(234, 10)
Ok([2,3,4])

> digits(234, 1)
Error(InvalidBase)
pub fn is_even(x: Int) -> Bool

Returns whether the value provided is even.

Examples

> is_even(2)
True

> is_even(3)
False
pub fn is_odd(x: Int) -> Bool

Returns whether the value provided is odd.

Examples

> is_odd(3)
True

> is_odd(2)
False
pub fn max(a: Int, b: Int) -> Int

Compares two ints, returning the larger of the two.

Examples

> max(2, 3)
3
pub fn min(a: Int, b: Int) -> Int

Compares two ints, returning the smaller of the two.

Examples

> min(2, 3)
2
pub fn negate(x: Int) -> Int

Returns the negative of the value provided.

Examples

> negate(1)
-1
pub fn parse(string: String) -> Result(Int, Nil)

Parses a given string as an int if possible.

Examples

> parse("2")
Ok(2)

> parse("ABC")
Error(Nil)
pub fn product(numbers: List(Int)) -> Int

Multiplies a list of ints and returns the product.

Example

> product([2, 3, 4])
24
pub fn sum(numbers: List(Int)) -> Int

Sums a list of ints.

Example

> sum([1, 2, 3])
6
pub fn to_base16(int: Int) -> String

Prints a given int to a string using base16.

Examples

> to_base16(48)
"30"
pub fn to_base2(int: Int) -> String

Prints a given int to a string using base2.

Examples

> to_base2(2)
"10"
pub fn to_base36(int: Int) -> String

Prints a given int to a string using base16.

Examples

> to_base36(48)
"1C"
pub fn to_base8(int: Int) -> String

Prints a given int to a string using base8.

Examples

> to_base8(15)
"17"
pub fn to_base_string(int: Int, base: Int) -> Result(
  String,
  InvalidBase,
)

Prints a given int to a string using the base number provided. Supports only bases 2 to 36, for values outside of which this function returns an Error(InvalidBase). For common bases (2, 8, 16, 36), use the to_baseN functions.

Examples

> to_base_string(2, 2)
Ok("10")

> to_base_string(48, 16)
Ok("30")

> to_base_string(48, 36)
Ok("1C")

> to_base_string(48, 1)
Error(InvalidBase)

> to_base_string(48, 37)
Error(InvalidBase)
pub fn to_float(int: Int) -> Float

Takes an int and returns its value as a float.

Examples

> to_float(5)
5.

> to_float(0)
0.

> to_float(-3)
-3.
pub fn to_string(int: Int) -> String

Prints a given int to a string.

Examples

> to_string(2)
"2"
pub fn undigits(numbers: List(Int), base: Int) -> Result(
  Int,
  InvalidBase,
)

Joins a list of digits into a single value. Returns an error if the base is less than 2 or if the list contains a digit greater than or equal to the specified base.

Examples

> undigits([2,3,4], 10)
Ok(234)

> undigits([2,3,4], 1)
Error(InvalidBase)

> undigits([2,3,4], 2)
Error(InvalidBase)