Function as_array

fraction_bits.py:14–19

(num)

    # Special-case zero and subnormals, since num.hex() can return '0x0.0p+0'
    # or a non-'0x1.' form, which would break the split below.
    if num == 0.0:
        return '0' * 64

    parts = num.hex().split('0x1.')[-1].split('p')
    hex_mantissa = '1' + parts[0]
    unshifted = bin(int(hex_mantissa, 16))[2:]
    place = int(parts[1])