nalgebra/src/geometry/translation_coordinates.rs
Avi Weinstock 52aac8b975 Add inlined_clone to Scalar, and relax bounds from Scalar + Copy to Scalar + Clone nearly everywhere.
The various nalgebra-lapack FooScalars are still Copy because they make use of uninitialized memory.
nalgebgra-glm Number still uses Copy because upstream `approx` requires it.
2020-03-02 12:45:37 +01:00

45 lines
1.2 KiB
Rust

use std::mem;
use std::ops::{Deref, DerefMut};
use crate::base::allocator::Allocator;
use crate::base::coordinates::{X, XY, XYZ, XYZW, XYZWA, XYZWAB};
use crate::base::dimension::{U1, U2, U3, U4, U5, U6};
use crate::base::{DefaultAllocator, Scalar};
use crate::geometry::Translation;
/*
*
* Give coordinates to Translation{1 .. 6}
*
*/
macro_rules! deref_impl(
($D: ty, $Target: ident $(, $comps: ident)*) => {
impl<N: Scalar + Clone> Deref for Translation<N, $D>
where DefaultAllocator: Allocator<N, $D> {
type Target = $Target<N>;
#[inline]
fn deref(&self) -> &Self::Target {
unsafe { mem::transmute(self) }
}
}
impl<N: Scalar + Clone> DerefMut for Translation<N, $D>
where DefaultAllocator: Allocator<N, $D> {
#[inline]
fn deref_mut(&mut self) -> &mut Self::Target {
unsafe { mem::transmute(self) }
}
}
}
);
deref_impl!(U1, X, x);
deref_impl!(U2, XY, x, y);
deref_impl!(U3, XYZ, x, y, z);
deref_impl!(U4, XYZW, x, y, z, w);
deref_impl!(U5, XYZWA, x, y, z, w, a);
deref_impl!(U6, XYZWAB, x, y, z, w, a, b);