operators.py 文件源码

def Builtin_ROUND(expr, ctx):
    """
    http://www.w3.org/TR/sparql11-query/#func-round
    """

    # This used to be just math.bound
    # but in py3k bound was changed to
    # "round-to-even" behaviour
    # this is an ugly work-around
    l = expr.arg
    v = numeric(l)
    v = int(Decimal(v).quantize(1, ROUND_HALF_UP))
    return Literal(v, datatype=l.datatype)