inv.rs.html -- source

/// Unary operator for retrieving the multiplicative inverse, or reciprocal, of a value.
pub trait Inv {
    /// The result after applying the operator.
    type Output;

    /// Returns the multiplicative inverse of `self`.
    ///
    /// # Examples
    ///
    /// ```
    /// use std::f64::INFINITY;
    /// use num_traits::Inv;
    ///
    /// assert_eq!(7.0.inv() * 7.0, 1.0);
    /// assert_eq!((-0.0).inv(), -INFINITY);
    /// ```
    fn inv(self) -> Self::Output;
}

impl Inv for f32 {
    type Output = f32;
    #[inline]
    fn inv(self) -> f32 {
        1.0 / self
    }
}
impl Inv for f64 {
    type Output = f64;
    #[inline]
    fn inv(self) -> f64 {
        1.0 / self
    }
}
impl<'a> Inv for &'a f32 {
    type Output = f32;
    #[inline]
    fn inv(self) -> f32 {
        1.0 / *self
    }
}
impl<'a> Inv for &'a f64 {
    type Output = f64;
    #[inline]
    fn inv(self) -> f64 {
        1.0 / *self
    }
}

Keyboard Shortcuts

?: Show this help dialog
S: Focus the search field
↑: Move up in search results
↓: Move down in search results
↹: Switch tab
⏎: Go to active search result
+: Expand all sections
-: Collapse all sections

Search Tricks

Prefix searches with a type followed by a colon (e.g., fn:) to restrict the search to a given type.

Accepted types are: fn, mod, struct, enum, trait, type, macro, and const.

Search functions by type signature (e.g., vec -> usize or * -> vec)

Search multiple things at once by splitting your query with comma (e.g., str,u8 or String,struct:Vec,test)

You can look for items with an exact name by putting double quotes around your request: "string"

Look for items inside another one by searching for a path: vec::Vec