BUG: make clip(x) return a copy

array_api_strict/_elementwise_functions.py

@@ -257,7 +257,7 @@ def clip(
         raise TypeError("Only real numeric dtypes are allowed in clip")
 
     if min is max is None:
-        return x
+        return Array._new(x._array.copy(), device=x.device)
 
     for argname, arg in ("min", min), ("max", max):
         if isinstance(arg, Array):

array_api_strict/tests/test_elementwise_functions.py

@@ -312,3 +312,12 @@ def _array_vals():
 
                         with pytest.raises(TypeError):
                             func(s, s)
+
+
+def test_clip_none():
+    # regression test: clip(x) is a copy of x, not a view
+    x = asarray([1, 2, 3])
+    y = array_api_strict.clip(x)
+
+    y[1] = 42
+    assert x[1] == 2