Use safer_ffi for repr C trait

Cargo.toml

@@ -30,6 +30,7 @@ serde = { version = "1.0", features = ["serde_derive"], optional = true }
 # works only in rust toolchain up to 1.32, disabled indefinitely
 #simd = { version = "0.2", optional = true }
 bytemuck = { version = "1.0", optional = true }
+safer-ffi = { version = "0.0.10", features = ["proc_macros"] }
 
 [dev-dependencies]
 serde_json = "1.0"

src/euler.rs

@@ -28,10 +28,11 @@ use approx;
 use mint;
 use num::BaseFloat;
 use quaternion::Quaternion;
+use safer_ffi::prelude::*;
 
 /// A set of [Euler angles] representing a rotation in three-dimensional space.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
 ///
 /// The axis rotation sequence is XYZ. That is, the rotation is first around
 /// the X axis, then the Y axis, and lastly the Z axis (using intrinsic
@@ -78,6 +79,7 @@ use quaternion::Quaternion;
 /// [Euler angles]: https://en.wikipedia.org/wiki/Euler_angles
 /// [gimbal lock]: https://en.wikipedia.org/wiki/Gimbal_lock#Gimbal_lock_in_applied_mathematics
 /// [convert]: #defining-rotations-using-euler-angles
+#[derive_ReprC]
 #[repr(C)]
 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]

src/lib.rs

@@ -72,6 +72,8 @@ extern crate serde;
 #[cfg(feature = "simd")]
 extern crate simd;
 
+extern crate safer_ffi;
+
 // Re-exports
 
 pub use approx::*;

src/matrix.rs

@@ -33,6 +33,7 @@ use euler::Euler;
 use num::{BaseFloat, BaseNum};
 use point::{Point2, Point3};
 use quaternion::Quaternion;
+use safer_ffi::prelude::*;
 use transform::{Transform, Transform2, Transform3};
 use vector::{Vector2, Vector3, Vector4};
 
@@ -41,7 +42,8 @@ use mint;
 
 /// A 2 x 2, column major matrix
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(Copy, Clone, PartialEq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
@@ -54,7 +56,8 @@ pub struct Matrix2<S> {
 
 /// A 3 x 3, column major matrix
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(Copy, Clone, PartialEq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
@@ -69,7 +72,8 @@ pub struct Matrix3<S> {
 
 /// A 4 x 4, column major matrix
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(Copy, Clone, PartialEq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]

src/point.rs

@@ -27,13 +27,15 @@ use structure::*;
 use approx;
 use num::{BaseFloat, BaseNum};
 use vector::{Vector1, Vector2, Vector3, Vector4};
+use safer_ffi::prelude::*;
 
 #[cfg(feature = "mint")]
 use mint;
 
 /// A point in 1-dimensional space.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(PartialEq, Eq, Copy, Clone, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
@@ -43,7 +45,8 @@ pub struct Point1<S> {
 
 /// A point in 2-dimensional space.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(PartialEq, Eq, Copy, Clone, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
@@ -54,7 +57,8 @@ pub struct Point2<S> {
 
 /// A point in 3-dimensional space.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(PartialEq, Eq, Copy, Clone, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]

src/quaternion.rs

@@ -33,6 +33,7 @@ use num::{BaseFloat, BaseNum};
 use point::Point3;
 use quaternion;
 use rotation::{Basis3, Rotation, Rotation3};
+use safer_ffi::prelude::*;
 use vector::Vector3;
 
 #[cfg(feature = "mint")]
@@ -41,7 +42,8 @@ use mint;
 /// A [quaternion](https://en.wikipedia.org/wiki/Quaternion) in scalar/vector
 /// form.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(Copy, Clone, Debug, PartialEq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]

src/vector.rs

@@ -29,13 +29,15 @@ use structure::*;
 use angle::Rad;
 use approx;
 use num::{BaseFloat, BaseNum};
+use safer_ffi::prelude::*;
 
 #[cfg(feature = "mint")]
 use mint;
 
 /// A 1-dimensional vector.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(PartialEq, Eq, Copy, Clone, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
@@ -46,7 +48,8 @@ pub struct Vector1<S> {
 
 /// A 2-dimensional vector.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(PartialEq, Eq, Copy, Clone, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
@@ -59,7 +62,8 @@ pub struct Vector2<S> {
 
 /// A 3-dimensional vector.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(PartialEq, Eq, Copy, Clone, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
@@ -74,7 +78,8 @@ pub struct Vector3<S> {
 
 /// A 4-dimensional vector.
 ///
-/// This type is marked as `#[repr(C)]`.
+/// This type is marked as `#[derive_ReprC] #[repr(C)]`.
+#[derive_ReprC]
 #[repr(C)]
 #[derive(PartialEq, Eq, Copy, Clone, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]