diff options
Diffstat (limited to 'checklink/Safe.ml')
| -rw-r--r-- | checklink/Safe.ml | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/checklink/Safe.ml b/checklink/Safe.ml deleted file mode 100644 index efcd3bd6..00000000 --- a/checklink/Safe.ml +++ /dev/null @@ -1,25 +0,0 @@ -(* "Hacker's Delight", section 2.12 *) - -let ( + ) x y = - let z = x + y in - (* Overflow occurs iff x and y have same sign and z's sign is different *) - if (z lxor x) land (z lxor y) < 0 - then raise Exc.IntOverflow - else z - -let ( - ) x y = - let z = x - y in - (* Overflow occurs iff x and y have opposite signs and z and x have - opposite signs *) - if (x lxor y) land (z lxor x) < 0 - then raise Exc.IntOverflow - else z - -let ( * ) x y = - let z = x * y in - if (x = min_int && y < 0) || (y <> 0 && z / y <> x) - then raise Exc.IntOverflow - else z - -let of_int32 = Safe32.to_int -let to_int32 = Safe32.of_int |