//! 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);
/// ```