{{alias}}( x )
    Returns a boolean indicating if the sign bit is on (true) or off (false).

    Parameters
    ----------
    x: float
        Single-precision floating-point number.

    Returns
    -------
    bool: boolean
        Boolean indicating if sign bit is on or off.

    Examples
    --------
    > var bool = {{alias}}( {{alias:@stdlib/number/float64/base/to-float32}}( 4.0 ) )
    false
    > bool = {{alias}}( {{alias:@stdlib/number/float64/base/to-float32}}( -9.14e-34 ) )
    true
    > bool = {{alias}}( 0.0 )
    false
    > bool = {{alias}}( -0.0 )
    true

    See Also
    --------