cython

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def test1():
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    """
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    >>> test1()
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    2
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    """
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    cdef int[2][2] x
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    x[0][0] = 1
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    x[0][1] = 2
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    x[1][0] = 3
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    x[1][1] = 4
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    return f(x)[1]
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cdef int* f(int x[2][2]):
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    return x[0]
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def assign_index_in_loop():
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    """
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    >>> assign_index_in_loop()
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    2
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    """
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    cdef int i = 0
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    cdef int[1] a
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    cdef int[1] b
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    for a[0], b[0] in enumerate(range(3)):
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        assert a[0] == b[0]
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        assert a[0] == i
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        i += 1
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    assert a[0] == b[0]
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    return b[0]
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def test2():
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    """
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    >>> test2()
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    0
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    """
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    cdef int[5] a1
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    cdef int a2[2+3]
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    return sizeof(a1) - sizeof(a2)
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cdef enum:
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    MY_SIZE_A = 2
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    MY_SIZE_B = 3
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def test3():
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    """
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    >>> test3()
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    (2, 3)
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    """
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    cdef int a[MY_SIZE_A]
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    cdef int b[MY_SIZE_B]
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    return sizeof(a)/sizeof(int), sizeof(b)/sizeof(int)
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from libc cimport limits
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def test_cimported_attribute():
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    """
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    >>> test_cimported_attribute()
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    True
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    """
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    cdef char a[limits.CHAR_MAX]
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    return sizeof(a) >= 127
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