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-rw-r--r--lib/Floataux.ml8
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/Floataux.ml b/lib/Floataux.ml
index f0db1fa..dfdd6ce 100644
--- a/lib/Floataux.ml
+++ b/lib/Floataux.ml
@@ -19,10 +19,14 @@ let singleoffloat f =
Int32.float_of_bits (Int32.bits_of_float f)
let intoffloat f =
- coqint_of_camlint (Int32.of_float f)
+ if f < 2147483648.0 (*2^31 *) && f > -2147483649.0 (* -2^31-1 *)
+ then Some (coqint_of_camlint (Int32.of_float f))
+ else None
let intuoffloat f =
- coqint_of_camlint (Int64.to_int32 (Int64.of_float f))
+ if f < 4294967296.0 (* 2^32 *) && f >= 0.0
+ then Some (coqint_of_camlint (Int64.to_int32 (Int64.of_float f)))
+ else None
let floatofint i =
Int32.to_float (camlint_of_coqint i)