fdim.rs - source
Description: Source of the Rust file `/Users/erlendbasso/.cargo/registry/src/github.com-1ecc6299db9ec823/libm-0.2.6/src/math/fdim.rs`.
Keywords: rust, rustlang, rust-lang

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    use core::f64;

    /// Positive difference (f64)
    ///
    /// Determines the positive difference between arguments, returning:
    /// * x - y	if x > y, or
    /// * +0	if x <= y, or
    /// * NAN	if either argument is NAN.
    ///
    /// A range error may occur.
    #[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
    pub fn fdim(x: f64, y: f64) -> f64 {
        if x.is_nan() {
            x
        } else if y.is_nan() {
            y
        } else if x > y {
            x - y
        } else {
            0.0
        }
    }