TheAlgorithms-Python

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"""
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https://en.wikipedia.org/wiki/Floor_and_ceiling_functions
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"""
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def floor(x: float) -> int:
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    """
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    Return the floor of x as an Integral.
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    :param x: the number
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    :return: the largest integer <= x.
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    >>> import math
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    >>> all(floor(n) == math.floor(n) for n
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    ...     in (1, -1, 0, -0, 1.1, -1.1, 1.0, -1.0, 1_000_000_000))
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    True
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    """
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    return int(x) if x - int(x) >= 0 else int(x) - 1
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if __name__ == "__main__":
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    import doctest
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    doctest.testmod()
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