Examples
    ========

    >>> from sympy.integrals.meijerint import _find_splitting_points as fsp
    >>> from sympy import sin
    >>> from sympy.abc import x
    >>> fsp(x, x)
    {0}
    >>> fsp((x-1)**3, x)
    {1}
    >>> fsp(sin(x+3)*x, x)
    {-3, 0}
    c