third_party/rust_crates/vendor/euclid/src/size.rs - fuchsia - Git at Google

 // Copyright 2013 The Servo Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution.
 //
 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.

 use super::UnknownUnit;
 #[cfg(feature = "mint")]
 use mint;
 use length::Length;
 use scale::TypedScale;
 use vector::{TypedVector2D, vec2, BoolVector2D};
 use num::*;

 use num_traits::{Float, NumCast, Signed};
 use core::fmt;
 use core::ops::{Add, Div, Mul, Sub};
 use core::marker::PhantomData;

 /// A 2d size tagged with a unit.
 #[derive(EuclidMatrix)]
 #[repr(C)]
 pub struct TypedSize2D<T, U> {
     pub width: T,
     pub height: T,
     #[doc(hidden)]
     pub _unit: PhantomData<U>,
 }

 /// Default 2d size type with no unit.
 ///
 /// `Size2D` provides the same methods as `TypedSize2D`.
 pub type Size2D<T> = TypedSize2D<T, UnknownUnit>;

 impl<T: fmt::Debug, U> fmt::Debug for TypedSize2D<T, U> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "{:?}×{:?}", self.width, self.height)
     }
 }

 impl<T: fmt::Display, U> fmt::Display for TypedSize2D<T, U> {
     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
         write!(formatter, "({}x{})", self.width, self.height)
     }
 }

 impl<T, U> TypedSize2D<T, U> {
     /// Constructor taking scalar values.
     pub fn new(width: T, height: T) -> Self {
         TypedSize2D {
             width,
             height,
             _unit: PhantomData,
         }
     }
 }

 impl<T: Clone, U> TypedSize2D<T, U> {
     /// Constructor taking scalar strongly typed lengths.
     pub fn from_lengths(width: Length<T, U>, height: Length<T, U>) -> Self {
         TypedSize2D::new(width.get(), height.get())
     }
 }

 impl<T: Round, U> TypedSize2D<T, U> {
     /// Rounds each component to the nearest integer value.
     ///
     /// This behavior is preserved for negative values (unlike the basic cast).
     pub fn round(&self) -> Self {
         TypedSize2D::new(self.width.round(), self.height.round())
     }
 }

 impl<T: Ceil, U> TypedSize2D<T, U> {
     /// Rounds each component to the smallest integer equal or greater than the original value.
     ///
     /// This behavior is preserved for negative values (unlike the basic cast).
     pub fn ceil(&self) -> Self {
         TypedSize2D::new(self.width.ceil(), self.height.ceil())
     }
 }

 impl<T: Floor, U> TypedSize2D<T, U> {
     /// Rounds each component to the biggest integer equal or lower than the original value.
     ///
     /// This behavior is preserved for negative values (unlike the basic cast).
     pub fn floor(&self) -> Self {
         TypedSize2D::new(self.width.floor(), self.height.floor())
     }
 }

 impl<T: Copy + Add<T, Output = T>, U> Add for TypedSize2D<T, U> {
     type Output = Self;
     fn add(self, other: Self) -> Self {
         TypedSize2D::new(self.width + other.width, self.height + other.height)
     }
 }

 impl<T: Copy + Sub<T, Output = T>, U> Sub for TypedSize2D<T, U> {
     type Output = Self;
     fn sub(self, other: Self) -> Self {
         TypedSize2D::new(self.width - other.width, self.height - other.height)
     }
 }

 impl<T: Copy + Clone + Mul<T>, U> TypedSize2D<T, U> {
     pub fn area(&self) -> T::Output {
         self.width * self.height
     }
 }

 impl<T, U> TypedSize2D<T, U>
 where
     T: Copy + One + Add<Output = T> + Sub<Output = T> + Mul<Output = T>,
 {
     /// Linearly interpolate between this size and another size.
     ///
     /// `t` is expected to be between zero and one.
     #[inline]
     pub fn lerp(&self, other: Self, t: T) -> Self {
         let one_t = T::one() - t;
         size2(
             one_t * self.width + t * other.width,
             one_t * self.height + t * other.height,
         )
     }
 }

 impl<T: Zero + PartialOrd, U> TypedSize2D<T, U> {
     pub fn is_empty_or_negative(&self) -> bool {
         let zero = T::zero();
         self.width <= zero || self.height <= zero
     }
 }

 impl<T: Zero, U> TypedSize2D<T, U> {
     pub fn zero() -> Self {
         TypedSize2D::new(Zero::zero(), Zero::zero())
     }
 }

 impl<T: Zero, U> Zero for TypedSize2D<T, U> {
     fn zero() -> Self {
         TypedSize2D::new(Zero::zero(), Zero::zero())
     }
 }

 impl<T: Copy + Mul<T, Output = T>, U> Mul<T> for TypedSize2D<T, U> {
     type Output = Self;
     #[inline]
     fn mul(self, scale: T) -> Self {
         TypedSize2D::new(self.width * scale, self.height * scale)
     }
 }

 impl<T: Copy + Div<T, Output = T>, U> Div<T> for TypedSize2D<T, U> {
     type Output = Self;
     #[inline]
     fn div(self, scale: T) -> Self {
         TypedSize2D::new(self.width / scale, self.height / scale)
     }
 }

 impl<T: Copy + Mul<T, Output = T>, U1, U2> Mul<TypedScale<T, U1, U2>> for TypedSize2D<T, U1> {
     type Output = TypedSize2D<T, U2>;
     #[inline]
     fn mul(self, scale: TypedScale<T, U1, U2>) -> TypedSize2D<T, U2> {
         TypedSize2D::new(self.width * scale.get(), self.height * scale.get())
     }
 }

 impl<T: Copy + Div<T, Output = T>, U1, U2> Div<TypedScale<T, U1, U2>> for TypedSize2D<T, U2> {
     type Output = TypedSize2D<T, U1>;
     #[inline]
     fn div(self, scale: TypedScale<T, U1, U2>) -> TypedSize2D<T, U1> {
         TypedSize2D::new(self.width / scale.get(), self.height / scale.get())
     }
 }

 impl<T: Copy, U> TypedSize2D<T, U> {
     /// Returns self.width as a Length carrying the unit.
     #[inline]
     pub fn width_typed(&self) -> Length<T, U> {
         Length::new(self.width)
     }

     /// Returns self.height as a Length carrying the unit.
     #[inline]
     pub fn height_typed(&self) -> Length<T, U> {
         Length::new(self.height)
     }

     #[inline]
     pub fn to_array(&self) -> [T; 2] {
         [self.width, self.height]
     }

     #[inline]
     pub fn to_vector(&self) -> TypedVector2D<T, U> {
         vec2(self.width, self.height)
     }

     /// Drop the units, preserving only the numeric value.
     pub fn to_untyped(&self) -> Size2D<T> {
         TypedSize2D::new(self.width, self.height)
     }

     /// Tag a unitless value with units.
     pub fn from_untyped(p: &Size2D<T>) -> Self {
         TypedSize2D::new(p.width, p.height)
     }
 }

 impl<T: NumCast + Copy, Unit> TypedSize2D<T, Unit> {
     /// Cast from one numeric representation to another, preserving the units.
     ///
     /// When casting from floating point to integer coordinates, the decimals are truncated
     /// as one would expect from a simple cast, but this behavior does not always make sense
     /// geometrically. Consider using `round()`, `ceil()` or `floor()` before casting.
     pub fn cast<NewT: NumCast + Copy>(&self) -> TypedSize2D<NewT, Unit> {
         self.try_cast().unwrap()
     }

     /// Fallible cast from one numeric representation to another, preserving the units.
     ///
     /// When casting from floating point to integer coordinates, the decimals are truncated
     /// as one would expect from a simple cast, but this behavior does not always make sense
     /// geometrically. Consider using `round()`, `ceil()` or `floor()` before casting.
     pub fn try_cast<NewT: NumCast + Copy>(&self) -> Option<TypedSize2D<NewT, Unit>> {
         match (NumCast::from(self.width), NumCast::from(self.height)) {
             (Some(w), Some(h)) => Some(TypedSize2D::new(w, h)),
             _ => None,
         }
     }

     // Convenience functions for common casts

     /// Cast into an `f32` size.
     pub fn to_f32(&self) -> TypedSize2D<f32, Unit> {
         self.cast()
     }

     /// Cast into an `f64` size.
     pub fn to_f64(&self) -> TypedSize2D<f64, Unit> {
         self.cast()
     }

     /// Cast into an `uint` size, truncating decimals if any.
     ///
     /// When casting from floating point sizes, it is worth considering whether
     /// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
     /// the desired conversion behavior.
     pub fn to_usize(&self) -> TypedSize2D<usize, Unit> {
         self.cast()
     }

     /// Cast into an `u32` size, truncating decimals if any.
     ///
     /// When casting from floating point sizes, it is worth considering whether
     /// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
     /// the desired conversion behavior.
     pub fn to_u32(&self) -> TypedSize2D<u32, Unit> {
         self.cast()
     }

     /// Cast into an `i32` size, truncating decimals if any.
     ///
     /// When casting from floating point sizes, it is worth considering whether
     /// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
     /// the desired conversion behavior.
     pub fn to_i32(&self) -> TypedSize2D<i32, Unit> {
         self.cast()
     }

     /// Cast into an `i64` size, truncating decimals if any.
     ///
     /// When casting from floating point sizes, it is worth considering whether
     /// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
     /// the desired conversion behavior.
     pub fn to_i64(&self) -> TypedSize2D<i64, Unit> {
         self.cast()
     }
 }

 impl<T, U> TypedSize2D<T, U>
 where
     T: Signed,
 {
     pub fn abs(&self) -> Self {
         size2(self.width.abs(), self.height.abs())
     }

     pub fn is_positive(&self) -> bool {
         self.width.is_positive() && self.height.is_positive()
     }
 }

 impl<T: PartialOrd, U> TypedSize2D<T, U> {
     pub fn greater_than(&self, other: &Self) -> BoolVector2D {
         BoolVector2D {
             x: self.width > other.width,
             y: self.height > other.height,
         }
     }

     pub fn lower_than(&self, other: &Self) -> BoolVector2D {
         BoolVector2D {
             x: self.width < other.width,
             y: self.height < other.height,
         }
     }
 }


 impl<T: PartialEq, U> TypedSize2D<T, U> {
     pub fn equal(&self, other: &Self) -> BoolVector2D {
         BoolVector2D {
             x: self.width == other.width,
             y: self.height == other.height,
         }
     }

     pub fn not_equal(&self, other: &Self) -> BoolVector2D {
         BoolVector2D {
             x: self.width != other.width,
             y: self.height != other.height,
         }
     }
 }

 impl<T: Float, U> TypedSize2D<T, U> {
     #[inline]
     pub fn min(self, other: Self) -> Self {
         size2(
             self.width.min(other.width),
             self.height.min(other.height),
         )
     }

     #[inline]
     pub fn max(self, other: Self) -> Self {
         size2(
             self.width.max(other.width),
             self.height.max(other.height),
         )
     }

     #[inline]
     pub fn clamp(&self, start: Self, end: Self) -> Self {
         self.max(start).min(end)
     }
 }


 /// Shorthand for `TypedSize2D::new(w, h)`.
 pub fn size2<T, U>(w: T, h: T) -> TypedSize2D<T, U> {
     TypedSize2D::new(w, h)
 }

 #[cfg(feature = "mint")]
 impl<T, U> From<mint::Vector2<T>> for TypedSize2D<T, U> {
     fn from(v: mint::Vector2<T>) -> Self {
         TypedSize2D {
             width: v.x,
             height: v.y,
             _unit: PhantomData,
         }
     }
 }
 #[cfg(feature = "mint")]
 impl<T, U> Into<mint::Vector2<T>> for TypedSize2D<T, U> {
     fn into(self) -> mint::Vector2<T> {
         mint::Vector2 {
             x: self.width,
             y: self.height,
         }
     }
 }


 #[cfg(test)]
 mod size2d {
     use super::Size2D;
     #[cfg(feature = "mint")]
     use mint;

     #[test]
     pub fn test_add() {
         let p1 = Size2D::new(1.0, 2.0);
         let p2 = Size2D::new(3.0, 4.0);
         assert_eq!(p1 + p2, Size2D::new(4.0, 6.0));

         let p1 = Size2D::new(1.0, 2.0);
         let p2 = Size2D::new(0.0, 0.0);
         assert_eq!(p1 + p2, Size2D::new(1.0, 2.0));

         let p1 = Size2D::new(1.0, 2.0);
         let p2 = Size2D::new(-3.0, -4.0);
         assert_eq!(p1 + p2, Size2D::new(-2.0, -2.0));

         let p1 = Size2D::new(0.0, 0.0);
         let p2 = Size2D::new(0.0, 0.0);
         assert_eq!(p1 + p2, Size2D::new(0.0, 0.0));
     }

     #[test]
     pub fn test_sub() {
         let p1 = Size2D::new(1.0, 2.0);
         let p2 = Size2D::new(3.0, 4.0);
         assert_eq!(p1 - p2, Size2D::new(-2.0, -2.0));

         let p1 = Size2D::new(1.0, 2.0);
         let p2 = Size2D::new(0.0, 0.0);
         assert_eq!(p1 - p2, Size2D::new(1.0, 2.0));

         let p1 = Size2D::new(1.0, 2.0);
         let p2 = Size2D::new(-3.0, -4.0);
         assert_eq!(p1 - p2, Size2D::new(4.0, 6.0));

         let p1 = Size2D::new(0.0, 0.0);
         let p2 = Size2D::new(0.0, 0.0);
         assert_eq!(p1 - p2, Size2D::new(0.0, 0.0));
     }

     #[test]
     pub fn test_area() {
         let p = Size2D::new(1.5, 2.0);
         assert_eq!(p.area(), 3.0);
     }

     #[cfg(feature = "mint")]
     #[test]
     pub fn test_mint() {
         let s1 = Size2D::new(1.0, 2.0);
         let sm: mint::Vector2<_> = s1.into();
         let s2 = Size2D::from(sm);

         assert_eq!(s1, s2);
     }
 }
	// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
	// file at the top-level directory of this distribution.
	//
	// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
	// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
	// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
	// option. This file may not be copied, modified, or distributed
	// except according to those terms.

	use super::UnknownUnit;
	#[cfg(feature = "mint")]
	use mint;
	use length::Length;
	use scale::TypedScale;
	use vector::{TypedVector2D, vec2, BoolVector2D};
	use num::*;

	use num_traits::{Float, NumCast, Signed};
	use core::fmt;
	use core::ops::{Add, Div, Mul, Sub};
	use core::marker::PhantomData;

	/// A 2d size tagged with a unit.
	#[derive(EuclidMatrix)]
	#[repr(C)]
	pub struct TypedSize2D<T, U> {
	pub width: T,
	pub height: T,
	#[doc(hidden)]
	pub _unit: PhantomData<U>,
	}

	/// Default 2d size type with no unit.
	///
	/// `Size2D` provides the same methods as `TypedSize2D`.
	pub type Size2D<T> = TypedSize2D<T, UnknownUnit>;

	impl<T: fmt::Debug, U> fmt::Debug for TypedSize2D<T, U> {
	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
	write!(f, "{:?}×{:?}", self.width, self.height)
	}
	}

	impl<T: fmt::Display, U> fmt::Display for TypedSize2D<T, U> {
	fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
	write!(formatter, "({}x{})", self.width, self.height)
	}
	}

	impl<T, U> TypedSize2D<T, U> {
	/// Constructor taking scalar values.
	pub fn new(width: T, height: T) -> Self {
	TypedSize2D {
	width,
	height,
	_unit: PhantomData,
	}
	}
	}

	impl<T: Clone, U> TypedSize2D<T, U> {
	/// Constructor taking scalar strongly typed lengths.
	pub fn from_lengths(width: Length<T, U>, height: Length<T, U>) -> Self {
	TypedSize2D::new(width.get(), height.get())
	}
	}

	impl<T: Round, U> TypedSize2D<T, U> {
	/// Rounds each component to the nearest integer value.
	///
	/// This behavior is preserved for negative values (unlike the basic cast).
	pub fn round(&self) -> Self {
	TypedSize2D::new(self.width.round(), self.height.round())
	}
	}

	impl<T: Ceil, U> TypedSize2D<T, U> {
	/// Rounds each component to the smallest integer equal or greater than the original value.
	///
	/// This behavior is preserved for negative values (unlike the basic cast).
	pub fn ceil(&self) -> Self {
	TypedSize2D::new(self.width.ceil(), self.height.ceil())
	}
	}

	impl<T: Floor, U> TypedSize2D<T, U> {
	/// Rounds each component to the biggest integer equal or lower than the original value.
	///
	/// This behavior is preserved for negative values (unlike the basic cast).
	pub fn floor(&self) -> Self {
	TypedSize2D::new(self.width.floor(), self.height.floor())
	}
	}

	impl<T: Copy + Add<T, Output = T>, U> Add for TypedSize2D<T, U> {
	type Output = Self;
	fn add(self, other: Self) -> Self {
	TypedSize2D::new(self.width + other.width, self.height + other.height)
	}
	}

	impl<T: Copy + Sub<T, Output = T>, U> Sub for TypedSize2D<T, U> {
	type Output = Self;
	fn sub(self, other: Self) -> Self {
	TypedSize2D::new(self.width - other.width, self.height - other.height)
	}
	}

	impl<T: Copy + Clone + Mul<T>, U> TypedSize2D<T, U> {
	pub fn area(&self) -> T::Output {
	self.width * self.height
	}
	}

	impl<T, U> TypedSize2D<T, U>
	where
	T: Copy + One + Add<Output = T> + Sub<Output = T> + Mul<Output = T>,
	{
	/// Linearly interpolate between this size and another size.
	///
	/// `t` is expected to be between zero and one.
	#[inline]
	pub fn lerp(&self, other: Self, t: T) -> Self {
	let one_t = T::one() - t;
	size2(
	one_t * self.width + t * other.width,
	one_t * self.height + t * other.height,
	)
	}
	}

	impl<T: Zero + PartialOrd, U> TypedSize2D<T, U> {
	pub fn is_empty_or_negative(&self) -> bool {
	let zero = T::zero();
	self.width <= zero \|\| self.height <= zero
	}
	}

	impl<T: Zero, U> TypedSize2D<T, U> {
	pub fn zero() -> Self {
	TypedSize2D::new(Zero::zero(), Zero::zero())
	}
	}

	impl<T: Zero, U> Zero for TypedSize2D<T, U> {
	fn zero() -> Self {
	TypedSize2D::new(Zero::zero(), Zero::zero())
	}
	}

	impl<T: Copy + Mul<T, Output = T>, U> Mul<T> for TypedSize2D<T, U> {
	type Output = Self;
	#[inline]
	fn mul(self, scale: T) -> Self {
	TypedSize2D::new(self.width * scale, self.height * scale)
	}
	}

	impl<T: Copy + Div<T, Output = T>, U> Div<T> for TypedSize2D<T, U> {
	type Output = Self;
	#[inline]
	fn div(self, scale: T) -> Self {
	TypedSize2D::new(self.width / scale, self.height / scale)
	}
	}

	impl<T: Copy + Mul<T, Output = T>, U1, U2> Mul<TypedScale<T, U1, U2>> for TypedSize2D<T, U1> {
	type Output = TypedSize2D<T, U2>;
	#[inline]
	fn mul(self, scale: TypedScale<T, U1, U2>) -> TypedSize2D<T, U2> {
	TypedSize2D::new(self.width * scale.get(), self.height * scale.get())
	}
	}

	impl<T: Copy + Div<T, Output = T>, U1, U2> Div<TypedScale<T, U1, U2>> for TypedSize2D<T, U2> {
	type Output = TypedSize2D<T, U1>;
	#[inline]
	fn div(self, scale: TypedScale<T, U1, U2>) -> TypedSize2D<T, U1> {
	TypedSize2D::new(self.width / scale.get(), self.height / scale.get())
	}
	}

	impl<T: Copy, U> TypedSize2D<T, U> {
	/// Returns self.width as a Length carrying the unit.
	#[inline]
	pub fn width_typed(&self) -> Length<T, U> {
	Length::new(self.width)
	}

	/// Returns self.height as a Length carrying the unit.
	#[inline]
	pub fn height_typed(&self) -> Length<T, U> {
	Length::new(self.height)
	}

	#[inline]
	pub fn to_array(&self) -> [T; 2] {
	[self.width, self.height]
	}

	#[inline]
	pub fn to_vector(&self) -> TypedVector2D<T, U> {
	vec2(self.width, self.height)
	}

	/// Drop the units, preserving only the numeric value.
	pub fn to_untyped(&self) -> Size2D<T> {
	TypedSize2D::new(self.width, self.height)
	}

	/// Tag a unitless value with units.
	pub fn from_untyped(p: &Size2D<T>) -> Self {
	TypedSize2D::new(p.width, p.height)
	}
	}

	impl<T: NumCast + Copy, Unit> TypedSize2D<T, Unit> {
	/// Cast from one numeric representation to another, preserving the units.
	///
	/// When casting from floating point to integer coordinates, the decimals are truncated
	/// as one would expect from a simple cast, but this behavior does not always make sense
	/// geometrically. Consider using `round()`, `ceil()` or `floor()` before casting.
	pub fn cast<NewT: NumCast + Copy>(&self) -> TypedSize2D<NewT, Unit> {
	self.try_cast().unwrap()
	}

	/// Fallible cast from one numeric representation to another, preserving the units.
	///
	/// When casting from floating point to integer coordinates, the decimals are truncated
	/// as one would expect from a simple cast, but this behavior does not always make sense
	/// geometrically. Consider using `round()`, `ceil()` or `floor()` before casting.
	pub fn try_cast<NewT: NumCast + Copy>(&self) -> Option<TypedSize2D<NewT, Unit>> {
	match (NumCast::from(self.width), NumCast::from(self.height)) {
	(Some(w), Some(h)) => Some(TypedSize2D::new(w, h)),
	_ => None,
	}
	}

	// Convenience functions for common casts

	/// Cast into an `f32` size.
	pub fn to_f32(&self) -> TypedSize2D<f32, Unit> {
	self.cast()
	}

	/// Cast into an `f64` size.
	pub fn to_f64(&self) -> TypedSize2D<f64, Unit> {
	self.cast()
	}

	/// Cast into an `uint` size, truncating decimals if any.
	///
	/// When casting from floating point sizes, it is worth considering whether
	/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
	/// the desired conversion behavior.
	pub fn to_usize(&self) -> TypedSize2D<usize, Unit> {
	self.cast()
	}

	/// Cast into an `u32` size, truncating decimals if any.
	///
	/// When casting from floating point sizes, it is worth considering whether
	/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
	/// the desired conversion behavior.
	pub fn to_u32(&self) -> TypedSize2D<u32, Unit> {
	self.cast()
	}

	/// Cast into an `i32` size, truncating decimals if any.
	///
	/// When casting from floating point sizes, it is worth considering whether
	/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
	/// the desired conversion behavior.
	pub fn to_i32(&self) -> TypedSize2D<i32, Unit> {
	self.cast()
	}

	/// Cast into an `i64` size, truncating decimals if any.
	///
	/// When casting from floating point sizes, it is worth considering whether
	/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
	/// the desired conversion behavior.
	pub fn to_i64(&self) -> TypedSize2D<i64, Unit> {
	self.cast()
	}
	}

	impl<T, U> TypedSize2D<T, U>
	where
	T: Signed,
	{
	pub fn abs(&self) -> Self {
	size2(self.width.abs(), self.height.abs())
	}

	pub fn is_positive(&self) -> bool {
	self.width.is_positive() && self.height.is_positive()
	}
	}

	impl<T: PartialOrd, U> TypedSize2D<T, U> {
	pub fn greater_than(&self, other: &Self) -> BoolVector2D {
	BoolVector2D {
	x: self.width > other.width,
	y: self.height > other.height,
	}
	}

	pub fn lower_than(&self, other: &Self) -> BoolVector2D {
	BoolVector2D {
	x: self.width < other.width,
	y: self.height < other.height,
	}
	}
	}


	impl<T: PartialEq, U> TypedSize2D<T, U> {
	pub fn equal(&self, other: &Self) -> BoolVector2D {
	BoolVector2D {
	x: self.width == other.width,
	y: self.height == other.height,
	}
	}

	pub fn not_equal(&self, other: &Self) -> BoolVector2D {
	BoolVector2D {
	x: self.width != other.width,
	y: self.height != other.height,
	}
	}
	}

	impl<T: Float, U> TypedSize2D<T, U> {
	#[inline]
	pub fn min(self, other: Self) -> Self {
	size2(
	self.width.min(other.width),
	self.height.min(other.height),
	)
	}

	#[inline]
	pub fn max(self, other: Self) -> Self {
	size2(
	self.width.max(other.width),
	self.height.max(other.height),
	)
	}

	#[inline]
	pub fn clamp(&self, start: Self, end: Self) -> Self {
	self.max(start).min(end)
	}
	}


	/// Shorthand for `TypedSize2D::new(w, h)`.
	pub fn size2<T, U>(w: T, h: T) -> TypedSize2D<T, U> {
	TypedSize2D::new(w, h)
	}

	#[cfg(feature = "mint")]
	impl<T, U> From<mint::Vector2<T>> for TypedSize2D<T, U> {
	fn from(v: mint::Vector2<T>) -> Self {
	TypedSize2D {
	width: v.x,
	height: v.y,
	_unit: PhantomData,
	}
	}
	}
	#[cfg(feature = "mint")]
	impl<T, U> Into<mint::Vector2<T>> for TypedSize2D<T, U> {
	fn into(self) -> mint::Vector2<T> {
	mint::Vector2 {
	x: self.width,
	y: self.height,
	}
	}
	}


	#[cfg(test)]
	mod size2d {
	use super::Size2D;
	#[cfg(feature = "mint")]
	use mint;

	#[test]
	pub fn test_add() {
	let p1 = Size2D::new(1.0, 2.0);
	let p2 = Size2D::new(3.0, 4.0);
	assert_eq!(p1 + p2, Size2D::new(4.0, 6.0));

	let p1 = Size2D::new(1.0, 2.0);
	let p2 = Size2D::new(0.0, 0.0);
	assert_eq!(p1 + p2, Size2D::new(1.0, 2.0));

	let p1 = Size2D::new(1.0, 2.0);
	let p2 = Size2D::new(-3.0, -4.0);
	assert_eq!(p1 + p2, Size2D::new(-2.0, -2.0));

	let p1 = Size2D::new(0.0, 0.0);
	let p2 = Size2D::new(0.0, 0.0);
	assert_eq!(p1 + p2, Size2D::new(0.0, 0.0));
	}

	#[test]
	pub fn test_sub() {
	let p1 = Size2D::new(1.0, 2.0);
	let p2 = Size2D::new(3.0, 4.0);
	assert_eq!(p1 - p2, Size2D::new(-2.0, -2.0));

	let p1 = Size2D::new(1.0, 2.0);
	let p2 = Size2D::new(0.0, 0.0);
	assert_eq!(p1 - p2, Size2D::new(1.0, 2.0));

	let p1 = Size2D::new(1.0, 2.0);
	let p2 = Size2D::new(-3.0, -4.0);
	assert_eq!(p1 - p2, Size2D::new(4.0, 6.0));

	let p1 = Size2D::new(0.0, 0.0);
	let p2 = Size2D::new(0.0, 0.0);
	assert_eq!(p1 - p2, Size2D::new(0.0, 0.0));
	}

	#[test]
	pub fn test_area() {
	let p = Size2D::new(1.5, 2.0);
	assert_eq!(p.area(), 3.0);
	}

	#[cfg(feature = "mint")]
	#[test]
	pub fn test_mint() {
	let s1 = Size2D::new(1.0, 2.0);
	let sm: mint::Vector2<_> = s1.into();
	let s2 = Size2D::from(sm);

	assert_eq!(s1, s2);
	}
	}