Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: all files reviewed, 5 unresolved discussions (waiting on @omarespejel)

src/starkware/cairo/common/math_utils.py line 26 at r1 (raw file):

    assert abs(val) < rc_bound, f"value={val} is out of the valid range."
    return val > 0

And a second blank line between the two functions.

src/starkware/cairo/common/math_utils.py line 27 at r1 (raw file):

    return val > 0

def is_even(value, rc_bound):

I wonder if this function is necessary. How do you intend to use it?

src/starkware/cairo/common/math_utils.py line 29 at r1 (raw file):

def is_even(value, rc_bound):
    """
    Returns true if the input is even and within the range (-rc_bound, rc_bound).

Use the same phrasing as above:

Returns True if the lift of the given field element, as an integer in the range
(-rc_bound, rc_bound), is even.

src/starkware/cairo/common/math_utils.py line 32 at r1 (raw file):

    Raises an exception if the element is not within the accepted range.
    """
    assert_integer(value)

You should use as_int as above to make sure that if value is, for example, PRIME - 1, it will be interpreted as -1 (otherwise, the function will fail on the "out of range" error instead of simply returning False)

src/starkware/cairo/common/math_utils.py line 34 at r1 (raw file):

    assert_integer(value)
    assert abs(value) < rc_bound, f"value={value} is out of the valid range."
    return value % 2 == 0

End file with the new-line character.

Reviewable status: all files reviewed, 5 unresolved discussions (waiting on @omarespejel)

src/starkware/cairo/common/math_utils.py line 27 at r1 (raw file):

In particular, can you give a short code example taking advantage of this function?