diff options
| author | Erik Martin-Dorel | 2019-06-02 17:59:15 +0200 |
|---|---|---|
| committer | Pierre Roux | 2019-11-01 10:21:20 +0100 |
| commit | d5f49c85630e25f2c2b45cf03cc3f589e7cdaf5f (patch) | |
| tree | b8ec10fc68e3809156aff26db39a627237603a4c /theories/Floats/FloatOps.v | |
| parent | f155ba664a782f000e278d97ee5666e2e7d2adea (diff) | |
docs: Add refman+stdlib documentation
Diffstat (limited to 'theories/Floats/FloatOps.v')
| -rw-r--r-- | theories/Floats/FloatOps.v | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/theories/Floats/FloatOps.v b/theories/Floats/FloatOps.v index 6cc7cb0568..5ffbfc7215 100644 --- a/theories/Floats/FloatOps.v +++ b/theories/Floats/FloatOps.v @@ -1,6 +1,7 @@ Require Import ZArith Int63 SpecFloat PrimFloat. -(* Properties of the Binary64 IEEE 754 format *) +(** * Derived operations and mapping between primitive [float]s and [spec_float]s *) + Definition prec := 53%Z. Definition emax := 1024%Z. Notation emin := (emin prec emax). @@ -15,6 +16,9 @@ Definition ldexp f e := Definition ulp f := ldexp one (fexp prec emax (snd (frexp f))). +(** [Prim2SF] is an injective function that will be useful to express +the properties of the implemented Binary64 format (see [FloatAxioms]). +*) Definition Prim2SF f := if is_nan f then S754_nan else if is_zero f then S754_zero (get_sign f) |