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Drop unused bound, may_share_memory #56

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Merged
inducer merged 1 commit into from
Oct 12, 2025
Merged

Drop unused bound, may_share_memory #56

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28 changes: 0 additions & 28 deletions array.py
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,6 @@ class ArrayIsh(Protocol):
shape: tuple[int, ...]
strides: tuple[int, ...]
dtype: np.dtype[Any]
bytes: int


class ArrayFlags:
Expand Down Expand Up @@ -141,33 +140,6 @@ def get_common_dtype(obj1: ArrayIsh, obj2: ArrayIsh,
return result


def bound(a: ArrayIsh) -> tuple[int, int]:
high = a.bytes
low = a.bytes

for stri, shp in zip(a.strides, a.shape, strict=True):
if stri < 0:
low += (stri)*(shp-1)
else:
high += (stri)*(shp-1)
return low, high


def may_share_memory(a: ArrayIsh, b: ArrayIsh) -> bool:
# When this is called with a an ndarray and b
# a sparse matrix, numpy.may_share_memory fails.
if a is b:
return True
if a.__class__ is b.__class__:
a_l, a_h = bound(a)
b_l, b_h = bound(b)
if b_l >= a_h or a_l >= b_h:
return False
return True
else:
return False


# {{{ as_strided implementation

try:
Expand Down