Function shape_core::utils::max3

pub fn max3<'a, 'b, 'c, 'd, T>(a: &'a T, b: &'b T, c: &'c T) -> &'d Twhere
    T: PartialOrd,
    'a: 'd,
    'b: 'd,
    'c: 'd,

Returns the maximum of three values.