     1
     2
     3
     4
     5
     6
     7
     8
     9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24

    //! Shared mathematical utility functions.

    /// Cut value to be inside given range
    ///
    /// ```
    /// use image::math::utils;
    ///
    /// assert_eq!(utils::clamp(-5, 0, 10),  0);
    /// assert_eq!(utils::clamp( 6, 0, 10),  6);
    /// assert_eq!(utils::clamp(15, 0, 10), 10);
    /// ```
    #[inline]
    pub fn clamp<N>(a: N, min: N, max: N) -> N
    where
        N: PartialOrd,
    {
        if a < min {
            return min;
        }
        if a > max {
            return max;
        }
        a
    }

# Help

## 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`)