def test_strided(self):
a = arange(12)
b = a[::2]
low, high = utils.byte_bounds(b)
# the largest pointer address is lost (even numbers only in the
# stride), and compensate addresses for striding by 2
assert_equal(high - low, b.size * 2 * b.itemsize - b.itemsize)
def test_strided(self):
a = arange(12)
b = a[::2]
low, high = utils.byte_bounds(b)
# the largest pointer address is lost (even numbers only in the
# stride), and compensate addresses for striding by 2
assert_equal(high - low, b.size * 2 * b.itemsize - b.itemsize)
def test_byte_bounds():
a = arange(12).reshape(3, 4)
low, high = utils.byte_bounds(a)
assert_equal(high - low, a.size * a.itemsize)
def test_byte_bounds():
a = arange(12).reshape(3, 4)
low, high = utils.byte_bounds(a)
assert_equal(high - low, a.size * a.itemsize)
def test_unusual_order_negative_stride(self):
a = arange(12).reshape(3, 4)
b = a.T[::-1]
low, high = utils.byte_bounds(b)
assert_equal(high - low, b.size * b.itemsize)
def test_byte_bounds(self):
# pointer difference matches size * itemsize
# due to contiguity
a = arange(12).reshape(3, 4)
low, high = utils.byte_bounds(a)
assert_equal(high - low, a.size * a.itemsize)
def test_unusual_order_negative_stride(self):
a = arange(12).reshape(3, 4)
b = a.T[::-1]
low, high = utils.byte_bounds(b)
assert_equal(high - low, b.size * b.itemsize)
def test_byte_bounds(self):
# pointer difference matches size * itemsize
# due to contiguity
a = arange(12).reshape(3, 4)
low, high = utils.byte_bounds(a)
assert_equal(high - low, a.size * a.itemsize)