Implement classify on primitive float

1 files changed, 23 insertions, 0 deletions

diff --git a/test-suite/primitive/float/classify.v b/test-suite/primitive/float/classify.v
new file mode 100644
index 0000000000..e4373415cb
--- /dev/null
+++ b/test-suite/primitive/float/classify.v
@@ -0,0 +1,23 @@
+Require Import ZArith Floats.
+
+Definition epsilon := Eval compute in ldexp one (-1024)%Z.
+
+Check (eq_refl : classify one = PNormal).
+Check (eq_refl : classify (- one)%float = NNormal).
+Check (eq_refl : classify epsilon = PSubn).
+Check (eq_refl : classify (- epsilon)%float = NSubn).
+Check (eq_refl : classify zero = PZero).
+Check (eq_refl : classify neg_zero = NZero).
+Check (eq_refl : classify infinity = PInf).
+Check (eq_refl : classify neg_infinity = NInf).
+Check (eq_refl : classify nan = NaN).
+
+Check (eq_refl PNormal <: classify one = PNormal).
+Check (eq_refl NNormal <: classify (- one)%float = NNormal).
+Check (eq_refl PSubn <: classify epsilon = PSubn).
+Check (eq_refl NSubn <: classify (- epsilon)%float = NSubn).
+Check (eq_refl PZero <: classify zero = PZero).
+Check (eq_refl NZero <: classify neg_zero = NZero).
+Check (eq_refl PInf <: classify infinity = PInf).
+Check (eq_refl NInf <: classify neg_infinity = NInf).
+Check (eq_refl NaN <: classify nan = NaN).