F64.tu_big: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/math/f64.bend as F64
Lines 755-761 of bend-collections@1.0.0.0/src/math/f64.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/math/f64.bend&start_line=755&end_line=761

import Base
import bend-collections@1.0.0.0/src/math/num.bend as N
import bend-collections@1.0.0.0/src/math/u64.bend as W
import bend-collections@1.0.0.0/src/math/w64.bend as X

# |x| >= 2^52: w << k with k + bit_length(w) <= 64
def tu_big(+s: Bool, +w: W.U64, +k: Nat, fits: Bool) -> Result<&2, &2, N.NumError, W.U64>:
  match fits:
    case True{}:
      tu_int(s, X.shl(w, k))
    case False{}:
      Fail{N.Overflow{}}

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/math/f64.bend&name=tu_int
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/math/num.bend&name=NumError
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/math/u64.bend&name=U64
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/math/w64.bend&name=shl