src/libcore/num.rs

//! An interface for numeric types

pub trait Num {
    // FIXME: Trait composition. (#2616)
    pure fn add(other: &self) -> self;
    pure fn sub(other: &self) -> self;
    pure fn mul(other: &self) -> self;
    pure fn div(other: &self) -> self;
    pure fn modulo(other: &self) -> self;
    pure fn neg() -> self;

    pure fn to_int() -> int;
    static pure fn from_int(n: int) -> self;
}