py/objint_longlong: Fix overflow check in mp_obj_int_get_checked.

This is to fix an outstanding TODO.  The test cases is using a range as
this will exist in all builds, but `mp_obj_get_int` is used in many
different parts of code where an overflow is more likely to occur.

Signed-off-by: Yoctopuce dev <dev@yoctopuce.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/basics/int_64_basics.py b/tests/basics/int_64_basics.py
index 289ea49b6..2a161dac0 100644
--- a/tests/basics/int_64_basics.py
+++ b/tests/basics/int_64_basics.py
@@ -125,6 +125,22 @@ else:
 x = 1 << 62
 print('a' * (x + 4 - x))
 
+# test overflow check in mp_obj_get_int_maybe
+x = 1 << 32
+r = None
+try:
+    r = range(0, x)
+except OverflowError:
+    # 32-bit target, correctly handled the overflow of x
+    print("ok")
+if r is not None:
+    if len(r) == x:
+        # 64-bit target, everything is just a small-int
+        print("ok")
+    else:
+        # 32-bit target that did not handle the overflow of x
+        print("unhandled overflow")
+
 # negative shifts are invalid
 try:
     print((1 << 48) >> -4)