Base.fm/Number.fm at master · Soonad/Base.fm · GitHub

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import Bool
import Nat
import Bits
//import String

number_equal(a : Number, b : Number) : Bool
  if a === b then
    true
  else
    false

digit_to_char(n: Number) : Number
  if n < 10 then
    n + '0'
  else
    (n - 10) + 'a'

number_to_bits(len: Number, n: Number) : Bits
  if len === 0 then
    be
  else
    if n && 1 then
      b1(number_to_bits(len - 1, n >>> 1))
    else
      b0(number_to_bits(len - 1, n >>> 1))

nat_to_number(n: Nat) : Number
  case n
  | zero => 0
  | succ => 1 + nat_to_number(n.pred)

pi : Number
  3.141592653589793

tau
  6.283185307179586

abs(x : Number) : Number
  if x < 0 then
    x * -1
  else
    x

floor(x : Number) : Number
  (x - (x % 1)) - (if x < 0 then 1 else 0)

min(a: Number, b: Number) : Number
  if a < b then
    a
  else
    b

max(a: Number, b: Number) : Number
  if a > b then
    a
  else
    b

// Is a <= b?
gte(a: Number, b: Number) : Number
  (a > b) || (a === b)

// Is a >= b?
lte(a: Number, b: Number) : Number
  (a < b) || (a === b)

// Is x inside the a..b range, with `b` exclusive?
is_between(a: Number, b: Number, x: Number) : Number
  (a === x) || ((a < x) && (x < b))

// Is x inside the a..b range, inclusive?
is_within(a: Number, b: Number, x: Number) : Number
  (a === x) || (a === b) || ((a < x) && (x < b))

// 32-bit Insigned Integer
Uint32 : Type
  Number

// Murmurhash 32-bit finalizer
bitmix(h: Uint32) : Uint32
  let h = h ^ (h >>> 16)
  let h = h * 0x85ebca6b
  let h = h >>> 13
  let h = h * 0xc2b2ae35
  let h = h ^ (h >>> 16)
  h