Add Scalar + Copy bounds to code that's under feature flags.

`./ci/test.sh` now passes locally.

Refactoring done via the following sed commands:
```bash
export RELEVANT_SOURCEFILES="$(find src -name '*.rs') $(find examples -name '*.rs')"
for f in $RELEVANT_SOURCEFILES; do sed -i 's/N\([0-9]\?\): *Scalar + \(Arbitrary\)/N\1: Scalar + Copy + \2/' $f; done
for f in $RELEVANT_SOURCEFILES; do sed -i 's/N\([0-9]\?\): *Scalar + \(Serialize\)/N\1: Scalar + Copy + \2/' $f; done
for f in $RELEVANT_SOURCEFILES; do sed -i 's/N\([0-9]\?\): *Scalar + \(Deserialize\)/N\1: Scalar + Copy + \2/' $f; do
export RELEVANT_SOURCEFILES="$(find nalgebra-glm -name '*.rs')"
for f in $RELEVANT_SOURCEFILES; do sed -i 's/N\([0-9]\?\): *Scalar,/N\1: Scalar + Copy,/' $f; done
for f in $RELEVANT_SOURCEFILES; do sed -i 's/N\([0-9]\?\): *Scalar>/N\1: Scalar + Copy>/' $f; done
for f in algebra-glm/src/traits.rs; do sed -i 's/Scalar + Ring/Scalar + Copy + Ring>/' $f; done # Number trait definition
```

nalgebra-glm/src/common.rs

@@ -297,13 +297,13 @@ where DefaultAllocator: Alloc<f32, D> {
     v.map(int_bits_to_float)
 }
 
-//pub fn isinf<N: Scalar, D: Dimension>(x: &TVec<N, D>) -> TVec<bool, D>
+//pub fn isinf<N: Scalar + Copy, D: Dimension>(x: &TVec<N, D>) -> TVec<bool, D>
 //    where DefaultAllocator: Alloc<N, D> {
 //        unimplemented!()
 //
 //}
 //
-//pub fn isnan<N: Scalar, D: Dimension>(x: &TVec<N, D>) -> TVec<bool, D>
+//pub fn isnan<N: Scalar + Copy, D: Dimension>(x: &TVec<N, D>) -> TVec<bool, D>
 //    where DefaultAllocator: Alloc<N, D> {
 //        unimplemented!()
 //
@@ -504,7 +504,7 @@ where DefaultAllocator: Alloc<N, D> {
     x.map(|x| x.round())
 }
 
-//pub fn roundEven<N: Scalar, D: Dimension>(x: &TVec<N, D>) -> TVec<N, D>
+//pub fn roundEven<N: Scalar + Copy, D: Dimension>(x: &TVec<N, D>) -> TVec<N, D>
 //    where DefaultAllocator: Alloc<N, D> {
 //        unimplemented!()
 //}

nalgebra-glm/src/constructors.rs

@@ -15,28 +15,28 @@ use crate::aliases::{TMat, Qua, TVec1, TVec2, TVec3, TVec4, TMat2, TMat2x3, TMat
 /// # use nalgebra_glm as glm;
 /// let v = glm::vec1(true);
 /// ```
-pub fn vec1<N: Scalar>(x: N) -> TVec1<N> {
+pub fn vec1<N: Scalar + Copy>(x: N) -> TVec1<N> {
     TVec1::new(x)
 }
 
 /// Creates a new 2D vector.
-pub fn vec2<N: Scalar>(x: N, y: N) -> TVec2<N> {
+pub fn vec2<N: Scalar + Copy>(x: N, y: N) -> TVec2<N> {
     TVec2::new(x, y)
 }
 
 /// Creates a new 3D vector.
-pub fn vec3<N: Scalar>(x: N, y: N, z: N) -> TVec3<N> {
+pub fn vec3<N: Scalar + Copy>(x: N, y: N, z: N) -> TVec3<N> {
     TVec3::new(x, y, z)
 }
 
 /// Creates a new 4D vector.
-pub fn vec4<N: Scalar>(x: N, y: N, z: N, w: N) -> TVec4<N> {
+pub fn vec4<N: Scalar + Copy>(x: N, y: N, z: N, w: N) -> TVec4<N> {
     TVec4::new(x, y, z, w)
 }
 
 
 /// Create a new 2x2 matrix.
-pub fn mat2<N: Scalar>(m11: N, m12: N,
+pub fn mat2<N: Scalar + Copy>(m11: N, m12: N,
                        m21: N, m22: N) -> TMat2<N> {
     TMat::<N, U2, U2>::new(
         m11, m12,
@@ -45,7 +45,7 @@ pub fn mat2<N: Scalar>(m11: N, m12: N,
 }
 
 /// Create a new 2x2 matrix.
-pub fn mat2x2<N: Scalar>(m11: N, m12: N,
+pub fn mat2x2<N: Scalar + Copy>(m11: N, m12: N,
                          m21: N, m22: N) -> TMat2<N> {
     TMat::<N, U2, U2>::new(
         m11, m12,
@@ -54,7 +54,7 @@ pub fn mat2x2<N: Scalar>(m11: N, m12: N,
 }
 
 /// Create a new 2x3 matrix.
-pub fn mat2x3<N: Scalar>(m11: N, m12: N, m13: N,
+pub fn mat2x3<N: Scalar + Copy>(m11: N, m12: N, m13: N,
                          m21: N, m22: N, m23: N) -> TMat2x3<N> {
     TMat::<N, U2, U3>::new(
         m11, m12, m13,
@@ -63,7 +63,7 @@ pub fn mat2x3<N: Scalar>(m11: N, m12: N, m13: N,
 }
 
 /// Create a new 2x4 matrix.
-pub fn mat2x4<N: Scalar>(m11: N, m12: N, m13: N, m14: N,
+pub fn mat2x4<N: Scalar + Copy>(m11: N, m12: N, m13: N, m14: N,
                          m21: N, m22: N, m23: N, m24: N) -> TMat2x4<N> {
     TMat::<N, U2, U4>::new(
         m11, m12, m13, m14,
@@ -72,7 +72,7 @@ pub fn mat2x4<N: Scalar>(m11: N, m12: N, m13: N, m14: N,
 }
 
 /// Create a new 3x3 matrix.
-pub fn mat3<N: Scalar>(m11: N, m12: N, m13: N,
+pub fn mat3<N: Scalar + Copy>(m11: N, m12: N, m13: N,
                        m21: N, m22: N, m23: N,
                        m31: N, m32: N, m33: N) -> TMat3<N> {
     TMat::<N, U3, U3>::new(
@@ -83,7 +83,7 @@ pub fn mat3<N: Scalar>(m11: N, m12: N, m13: N,
 }
 
 /// Create a new 3x2 matrix.
-pub fn mat3x2<N: Scalar>(m11: N, m12: N,
+pub fn mat3x2<N: Scalar + Copy>(m11: N, m12: N,
                          m21: N, m22: N,
                          m31: N, m32: N) -> TMat3x2<N> {
     TMat::<N, U3, U2>::new(
@@ -94,7 +94,7 @@ pub fn mat3x2<N: Scalar>(m11: N, m12: N,
 }
 
 /// Create a new 3x3 matrix.
-pub fn mat3x3<N: Scalar>(m11: N, m12: N, m13: N,
+pub fn mat3x3<N: Scalar + Copy>(m11: N, m12: N, m13: N,
                          m21: N, m22: N, m23: N,
                          m31: N, m32: N, m33: N) -> TMat3<N> {
     TMat::<N, U3, U3>::new(
@@ -105,7 +105,7 @@ pub fn mat3x3<N: Scalar>(m11: N, m12: N, m13: N,
 }
 
 /// Create a new 3x4 matrix.
-pub fn mat3x4<N: Scalar>(m11: N, m12: N, m13: N, m14: N,
+pub fn mat3x4<N: Scalar + Copy>(m11: N, m12: N, m13: N, m14: N,
                          m21: N, m22: N, m23: N, m24: N,
                          m31: N, m32: N, m33: N, m34: N) -> TMat3x4<N> {
     TMat::<N, U3, U4>::new(
@@ -116,7 +116,7 @@ pub fn mat3x4<N: Scalar>(m11: N, m12: N, m13: N, m14: N,
 }
 
 /// Create a new 4x2 matrix.
-pub fn mat4x2<N: Scalar>(m11: N, m12: N,
+pub fn mat4x2<N: Scalar + Copy>(m11: N, m12: N,
                          m21: N, m22: N,
                          m31: N, m32: N,
                          m41: N, m42: N) -> TMat4x2<N> {
@@ -129,7 +129,7 @@ pub fn mat4x2<N: Scalar>(m11: N, m12: N,
 }
 
 /// Create a new 4x3 matrix.
-pub fn mat4x3<N: Scalar>(m11: N, m12: N, m13: N,
+pub fn mat4x3<N: Scalar + Copy>(m11: N, m12: N, m13: N,
                          m21: N, m22: N, m23: N,
                          m31: N, m32: N, m33: N,
                          m41: N, m42: N, m43: N) -> TMat4x3<N> {
@@ -142,7 +142,7 @@ pub fn mat4x3<N: Scalar>(m11: N, m12: N, m13: N,
 }
 
 /// Create a new 4x4 matrix.
-pub fn mat4x4<N: Scalar>(m11: N, m12: N, m13: N, m14: N,
+pub fn mat4x4<N: Scalar + Copy>(m11: N, m12: N, m13: N, m14: N,
                          m21: N, m22: N, m23: N, m24: N,
                          m31: N, m32: N, m33: N, m34: N,
                          m41: N, m42: N, m43: N, m44: N) -> TMat4<N> {
@@ -155,7 +155,7 @@ pub fn mat4x4<N: Scalar>(m11: N, m12: N, m13: N, m14: N,
 }
 
 /// Create a new 4x4 matrix.
-pub fn mat4<N: Scalar>(m11: N, m12: N, m13: N, m14: N,
+pub fn mat4<N: Scalar + Copy>(m11: N, m12: N, m13: N, m14: N,
                        m21: N, m22: N, m23: N, m24: N,
                        m31: N, m32: N, m33: N, m34: N,
                        m41: N, m42: N, m43: N, m44: N) -> TMat4<N> {

nalgebra-glm/src/gtc/bitfield.rs

@@ -19,7 +19,7 @@ pub fn bitfieldFillOne<IU>(Value: IU, FirstBit: i32, BitCount: i32) -> IU {
     unimplemented!()
 }
 
-pub fn bitfieldFillOne2<N: Scalar, D: Dimension>(Value: &TVec<N, D>, FirstBit: i32, BitCount: i32) -> TVec<N, D>
+pub fn bitfieldFillOne2<N: Scalar + Copy, D: Dimension>(Value: &TVec<N, D>, FirstBit: i32, BitCount: i32) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -28,7 +28,7 @@ pub fn bitfieldFillZero<IU>(Value: IU, FirstBit: i32, BitCount: i32) -> IU {
     unimplemented!()
 }
 
-pub fn bitfieldFillZero2<N: Scalar, D: Dimension>(Value: &TVec<N, D>, FirstBit: i32, BitCount: i32) -> TVec<N, D>
+pub fn bitfieldFillZero2<N: Scalar + Copy, D: Dimension>(Value: &TVec<N, D>, FirstBit: i32, BitCount: i32) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -113,7 +113,7 @@ pub fn bitfieldRotateLeft<IU>(In: IU, Shift: i32) -> IU {
     unimplemented!()
 }
 
-pub fn bitfieldRotateLeft2<N: Scalar, D: Dimension>(In: &TVec<N, D>, Shift: i32) -> TVec<N, D>
+pub fn bitfieldRotateLeft2<N: Scalar + Copy, D: Dimension>(In: &TVec<N, D>, Shift: i32) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -122,7 +122,7 @@ pub fn bitfieldRotateRight<IU>(In: IU, Shift: i32) -> IU {
     unimplemented!()
 }
 
-pub fn bitfieldRotateRight2<N: Scalar, D: Dimension>(In: &TVec<N, D>, Shift: i32) -> TVec<N, D>
+pub fn bitfieldRotateRight2<N: Scalar + Copy, D: Dimension>(In: &TVec<N, D>, Shift: i32) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -131,7 +131,7 @@ pub fn mask<IU>(Bits: IU) -> IU {
     unimplemented!()
 }
 
-pub fn mask2<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
+pub fn mask2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }

nalgebra-glm/src/gtc/integer.rs

@@ -3,7 +3,7 @@
 //use crate::traits::{Alloc, Dimension};
 //use crate::aliases::TVec;
 
-//pub fn iround<N: Scalar, D: Dimension>(x: &TVec<N, D>) -> TVec<i32, D>
+//pub fn iround<N: Scalar + Copy, D: Dimension>(x: &TVec<N, D>) -> TVec<i32, D>
 //    where DefaultAllocator: Alloc<N, D> {
 //    x.map(|x| x.round())
 //}
@@ -12,7 +12,7 @@
 //    unimplemented!()
 //}
 //
-//pub fn uround<N: Scalar, D: Dimension>(x: &TVec<N, D>) -> TVec<u32, D>
+//pub fn uround<N: Scalar + Copy, D: Dimension>(x: &TVec<N, D>) -> TVec<u32, D>
 //    where DefaultAllocator: Alloc<N, D> {
 //    unimplemented!()
 //}

nalgebra-glm/src/gtc/matrix_access.rs

@@ -10,7 +10,7 @@ use crate::traits::{Alloc, Dimension};
 /// * [`row`](fn.row.html)
 /// * [`set_column`](fn.set_column.html)
 /// * [`set_row`](fn.set_row.html)
-pub fn column<N: Scalar, R: Dimension, C: Dimension>(
+pub fn column<N: Scalar + Copy, R: Dimension, C: Dimension>(
     m: &TMat<N, R, C>,
     index: usize,
 ) -> TVec<N, R>
@@ -27,7 +27,7 @@ where
 /// * [`column`](fn.column.html)
 /// * [`row`](fn.row.html)
 /// * [`set_row`](fn.set_row.html)
-pub fn set_column<N: Scalar, R: Dimension, C: Dimension>(
+pub fn set_column<N: Scalar + Copy, R: Dimension, C: Dimension>(
     m: &TMat<N, R, C>,
     index: usize,
     x: &TVec<N, R>,
@@ -47,7 +47,7 @@ where
 /// * [`column`](fn.column.html)
 /// * [`set_column`](fn.set_column.html)
 /// * [`set_row`](fn.set_row.html)
-pub fn row<N: Scalar, R: Dimension, C: Dimension>(m: &TMat<N, R, C>, index: usize) -> TVec<N, C>
+pub fn row<N: Scalar + Copy, R: Dimension, C: Dimension>(m: &TMat<N, R, C>, index: usize) -> TVec<N, C>
 where DefaultAllocator: Alloc<N, R, C> {
     m.row(index).into_owned().transpose()
 }
@@ -59,7 +59,7 @@ where DefaultAllocator: Alloc<N, R, C> {
 /// * [`column`](fn.column.html)
 /// * [`row`](fn.row.html)
 /// * [`set_column`](fn.set_column.html)
-pub fn set_row<N: Scalar, R: Dimension, C: Dimension>(
+pub fn set_row<N: Scalar + Copy, R: Dimension, C: Dimension>(
     m: &TMat<N, R, C>,
     index: usize,
     x: &TVec<N, C>,

nalgebra-glm/src/gtc/packing.rs

@@ -49,7 +49,7 @@ pub fn packInt4x8(v: &I8Vec4) -> i32 {
     unimplemented!()
 }
 
-pub fn packRGBM<N: Scalar>(rgb: &TVec3<N>) -> TVec4<N> {
+pub fn packRGBM<N: Scalar + Copy>(rgb: &TVec3<N>) -> TVec4<N> {
     unimplemented!()
 }
 
@@ -155,7 +155,7 @@ pub fn unpackF3x9_E1x5(p: i32) -> Vec3 {
     unimplemented!()
 }
 
-pub fn unpackHalf<N: Scalar, D: Dimension>(p: TVec<i16, D>) -> TVec<N, D>
+pub fn unpackHalf<N: Scalar + Copy, D: Dimension>(p: TVec<i16, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -192,7 +192,7 @@ pub fn unpackInt4x8(p: i32) -> I8Vec4 {
     unimplemented!()
 }
 
-pub fn unpackRGBM<N: Scalar>(rgbm: &TVec4<N>) -> TVec3<N> {
+pub fn unpackRGBM<N: Scalar + Copy>(rgbm: &TVec4<N>) -> TVec3<N> {
     unimplemented!()
 }
 

nalgebra-glm/src/gtc/round.rs

@@ -8,7 +8,7 @@ pub fn ceilMultiple<T>(v: T, Multiple: T) -> T {
     unimplemented!()
 }
 
-pub fn ceilMultiple2<N: Scalar, D: Dimension>(v: &TVec<N, D>, Multiple: &TVec<N, D>) -> TVec<N, D>
+pub fn ceilMultiple2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>, Multiple: &TVec<N, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -17,7 +17,7 @@ pub fn ceilPowerOfTwo<IU>(v: IU) -> IU {
     unimplemented!()
 }
 
-pub fn ceilPowerOfTwo2<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
+pub fn ceilPowerOfTwo2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -26,7 +26,7 @@ pub fn floorMultiple<T>(v: T, Multiple: T) -> T {
     unimplemented!()
 }
 
-pub fn floorMultiple2<N: Scalar, D: Dimension>(v: &TVec<N, D>, Multiple: &TVec<N, D>) -> TVec<N, D>
+pub fn floorMultiple2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>, Multiple: &TVec<N, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -35,7 +35,7 @@ pub fn floorPowerOfTwo<IU>(v: IU) -> IU {
     unimplemented!()
 }
 
-pub fn floorPowerOfTwo2<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
+pub fn floorPowerOfTwo2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -44,12 +44,12 @@ pub fn isMultiple<IU>(v: IU, Multiple: IU) -> bool {
     unimplemented!()
 }
 
-pub fn isMultiple2<N: Scalar, D: Dimension>(v: &TVec<N, D>,Multiple: N) -> TVec<bool, D>
+pub fn isMultiple2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>,Multiple: N) -> TVec<bool, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
 
-pub fn isMultiple3<N: Scalar, D: Dimension>(v: &TVec<N, D>, Multiple: &TVec<N, D>) -> TVec<bool, D>
+pub fn isMultiple3<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>, Multiple: &TVec<N, D>) -> TVec<bool, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -58,7 +58,7 @@ pub fn isPowerOfTwo2<IU>(v: IU) -> bool {
     unimplemented!()
 }
 
-pub fn isPowerOfTwo<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<bool, D>
+pub fn isPowerOfTwo<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<bool, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -67,7 +67,7 @@ pub fn roundMultiple<T>(v: T, Multiple: T) -> T {
     unimplemented!()
 }
 
-pub fn roundMultiple2<N: Scalar, D: Dimension>(v: &TVec<N, D>, Multiple: &TVec<N, D>) -> TVec<N, D>
+pub fn roundMultiple2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>, Multiple: &TVec<N, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -76,7 +76,7 @@ pub fn roundPowerOfTwo<IU>(v: IU) -> IU {
     unimplemented!()
 }
 
-pub fn roundPowerOfTwo2<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
+pub fn roundPowerOfTwo2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }

nalgebra-glm/src/gtc/type_ptr.rs

@@ -7,62 +7,62 @@ use crate::aliases::{
 use crate::traits::{Alloc, Dimension, Number};
 
 /// Creates a 2x2 matrix from a slice arranged in column-major order.
-pub fn make_mat2<N: Scalar>(ptr: &[N]) -> TMat2<N> {
+pub fn make_mat2<N: Scalar + Copy>(ptr: &[N]) -> TMat2<N> {
     TMat2::from_column_slice(ptr)
 }
 
 /// Creates a 2x2 matrix from a slice arranged in column-major order.
-pub fn make_mat2x2<N: Scalar>(ptr: &[N]) -> TMat2<N> {
+pub fn make_mat2x2<N: Scalar + Copy>(ptr: &[N]) -> TMat2<N> {
     TMat2::from_column_slice(ptr)
 }
 
 /// Creates a 2x3 matrix from a slice arranged in column-major order.
-pub fn make_mat2x3<N: Scalar>(ptr: &[N]) -> TMat2x3<N> {
+pub fn make_mat2x3<N: Scalar + Copy>(ptr: &[N]) -> TMat2x3<N> {
     TMat2x3::from_column_slice(ptr)
 }
 
 /// Creates a 2x4 matrix from a slice arranged in column-major order.
-pub fn make_mat2x4<N: Scalar>(ptr: &[N]) -> TMat2x4<N> {
+pub fn make_mat2x4<N: Scalar + Copy>(ptr: &[N]) -> TMat2x4<N> {
     TMat2x4::from_column_slice(ptr)
 }
 
 /// Creates a 3 matrix from a slice arranged in column-major order.
-pub fn make_mat3<N: Scalar>(ptr: &[N]) -> TMat3<N> {
+pub fn make_mat3<N: Scalar + Copy>(ptr: &[N]) -> TMat3<N> {
     TMat3::from_column_slice(ptr)
 }
 
 /// Creates a 3x2 matrix from a slice arranged in column-major order.
-pub fn make_mat3x2<N: Scalar>(ptr: &[N]) -> TMat3x2<N> {
+pub fn make_mat3x2<N: Scalar + Copy>(ptr: &[N]) -> TMat3x2<N> {
     TMat3x2::from_column_slice(ptr)
 }
 
 /// Creates a 3x3 matrix from a slice arranged in column-major order.
-pub fn make_mat3x3<N: Scalar>(ptr: &[N]) -> TMat3<N> {
+pub fn make_mat3x3<N: Scalar + Copy>(ptr: &[N]) -> TMat3<N> {
     TMat3::from_column_slice(ptr)
 }
 
 /// Creates a 3x4 matrix from a slice arranged in column-major order.
-pub fn make_mat3x4<N: Scalar>(ptr: &[N]) -> TMat3x4<N> {
+pub fn make_mat3x4<N: Scalar + Copy>(ptr: &[N]) -> TMat3x4<N> {
     TMat3x4::from_column_slice(ptr)
 }
 
 /// Creates a 4x4 matrix from a slice arranged in column-major order.
-pub fn make_mat4<N: Scalar>(ptr: &[N]) -> TMat4<N> {
+pub fn make_mat4<N: Scalar + Copy>(ptr: &[N]) -> TMat4<N> {
     TMat4::from_column_slice(ptr)
 }
 
 /// Creates a 4x2 matrix from a slice arranged in column-major order.
-pub fn make_mat4x2<N: Scalar>(ptr: &[N]) -> TMat4x2<N> {
+pub fn make_mat4x2<N: Scalar + Copy>(ptr: &[N]) -> TMat4x2<N> {
     TMat4x2::from_column_slice(ptr)
 }
 
 /// Creates a 4x3 matrix from a slice arranged in column-major order.
-pub fn make_mat4x3<N: Scalar>(ptr: &[N]) -> TMat4x3<N> {
+pub fn make_mat4x3<N: Scalar + Copy>(ptr: &[N]) -> TMat4x3<N> {
     TMat4x3::from_column_slice(ptr)
 }
 
 /// Creates a 4x4 matrix from a slice arranged in column-major order.
-pub fn make_mat4x4<N: Scalar>(ptr: &[N]) -> TMat4<N> {
+pub fn make_mat4x4<N: Scalar + Copy>(ptr: &[N]) -> TMat4<N> {
     TMat4::from_column_slice(ptr)
 }
 
@@ -75,7 +75,7 @@ pub fn mat2_to_mat3<N: Number>(m: &TMat2<N>) -> TMat3<N> {
 }
 
 /// Converts a 3x3 matrix to a 2x2 matrix.
-pub fn mat3_to_mat2<N: Scalar>(m: &TMat3<N>) -> TMat2<N> {
+pub fn mat3_to_mat2<N: Scalar + Copy>(m: &TMat3<N>) -> TMat2<N> {
     TMat2::new(m.m11, m.m12, m.m21, m.m22)
 }
 
@@ -90,7 +90,7 @@ pub fn mat3_to_mat4<N: Number>(m: &TMat3<N>) -> TMat4<N> {
 }
 
 /// Converts a 4x4 matrix to a 3x3 matrix.
-pub fn mat4_to_mat3<N: Scalar>(m: &TMat4<N>) -> TMat3<N> {
+pub fn mat4_to_mat3<N: Scalar + Copy>(m: &TMat4<N>) -> TMat3<N> {
     TMat3::new(
         m.m11, m.m12, m.m13, m.m21, m.m22, m.m23, m.m31, m.m32, m.m33,
     )
@@ -107,7 +107,7 @@ pub fn mat2_to_mat4<N: Number>(m: &TMat2<N>) -> TMat4<N> {
 }
 
 /// Converts a 4x4 matrix to a 2x2 matrix.
-pub fn mat4_to_mat2<N: Scalar>(m: &TMat4<N>) -> TMat2<N> {
+pub fn mat4_to_mat2<N: Scalar + Copy>(m: &TMat4<N>) -> TMat2<N> {
     TMat2::new(m.m11, m.m12, m.m21, m.m22)
 }
 
@@ -123,7 +123,7 @@ pub fn make_quat<N: RealField>(ptr: &[N]) -> Qua<N> {
 /// * [`make_vec2`](fn.make_vec2.html)
 /// * [`make_vec3`](fn.make_vec3.html)
 /// * [`make_vec4`](fn.make_vec4.html)
-pub fn make_vec1<N: Scalar>(v: &TVec1<N>) -> TVec1<N> {
+pub fn make_vec1<N: Scalar + Copy>(v: &TVec1<N>) -> TVec1<N> {
     *v
 }
 
@@ -137,7 +137,7 @@ pub fn make_vec1<N: Scalar>(v: &TVec1<N>) -> TVec1<N> {
 /// * [`vec1_to_vec2`](fn.vec1_to_vec2.html)
 /// * [`vec1_to_vec3`](fn.vec1_to_vec3.html)
 /// * [`vec1_to_vec4`](fn.vec1_to_vec4.html)
-pub fn vec2_to_vec1<N: Scalar>(v: &TVec2<N>) -> TVec1<N> {
+pub fn vec2_to_vec1<N: Scalar + Copy>(v: &TVec2<N>) -> TVec1<N> {
     TVec1::new(v.x)
 }
 
@@ -151,7 +151,7 @@ pub fn vec2_to_vec1<N: Scalar>(v: &TVec2<N>) -> TVec1<N> {
 /// * [`vec1_to_vec2`](fn.vec1_to_vec2.html)
 /// * [`vec1_to_vec3`](fn.vec1_to_vec3.html)
 /// * [`vec1_to_vec4`](fn.vec1_to_vec4.html)
-pub fn vec3_to_vec1<N: Scalar>(v: &TVec3<N>) -> TVec1<N> {
+pub fn vec3_to_vec1<N: Scalar + Copy>(v: &TVec3<N>) -> TVec1<N> {
     TVec1::new(v.x)
 }
 
@@ -165,7 +165,7 @@ pub fn vec3_to_vec1<N: Scalar>(v: &TVec3<N>) -> TVec1<N> {
 /// * [`vec1_to_vec2`](fn.vec1_to_vec2.html)
 /// * [`vec1_to_vec3`](fn.vec1_to_vec3.html)
 /// * [`vec1_to_vec4`](fn.vec1_to_vec4.html)
-pub fn vec4_to_vec1<N: Scalar>(v: &TVec4<N>) -> TVec1<N> {
+pub fn vec4_to_vec1<N: Scalar + Copy>(v: &TVec4<N>) -> TVec1<N> {
     TVec1::new(v.x)
 }
 
@@ -196,7 +196,7 @@ pub fn vec1_to_vec2<N: Number>(v: &TVec1<N>) -> TVec2<N> {
 /// * [`vec2_to_vec2`](fn.vec2_to_vec2.html)
 /// * [`vec2_to_vec3`](fn.vec2_to_vec3.html)
 /// * [`vec2_to_vec4`](fn.vec2_to_vec4.html)
-pub fn vec2_to_vec2<N: Scalar>(v: &TVec2<N>) -> TVec2<N> {
+pub fn vec2_to_vec2<N: Scalar + Copy>(v: &TVec2<N>) -> TVec2<N> {
     *v
 }
 
@@ -210,7 +210,7 @@ pub fn vec2_to_vec2<N: Scalar>(v: &TVec2<N>) -> TVec2<N> {
 /// * [`vec2_to_vec2`](fn.vec2_to_vec2.html)
 /// * [`vec2_to_vec3`](fn.vec2_to_vec3.html)
 /// * [`vec2_to_vec4`](fn.vec2_to_vec4.html)
-pub fn vec3_to_vec2<N: Scalar>(v: &TVec3<N>) -> TVec2<N> {
+pub fn vec3_to_vec2<N: Scalar + Copy>(v: &TVec3<N>) -> TVec2<N> {
     TVec2::new(v.x, v.y)
 }
 
@@ -224,7 +224,7 @@ pub fn vec3_to_vec2<N: Scalar>(v: &TVec3<N>) -> TVec2<N> {
 /// * [`vec2_to_vec2`](fn.vec2_to_vec2.html)
 /// * [`vec2_to_vec3`](fn.vec2_to_vec3.html)
 /// * [`vec2_to_vec4`](fn.vec2_to_vec4.html)
-pub fn vec4_to_vec2<N: Scalar>(v: &TVec4<N>) -> TVec2<N> {
+pub fn vec4_to_vec2<N: Scalar + Copy>(v: &TVec4<N>) -> TVec2<N> {
     TVec2::new(v.x, v.y)
 }
 
@@ -235,7 +235,7 @@ pub fn vec4_to_vec2<N: Scalar>(v: &TVec4<N>) -> TVec2<N> {
 /// * [`make_vec1`](fn.make_vec1.html)
 /// * [`make_vec3`](fn.make_vec3.html)
 /// * [`make_vec4`](fn.make_vec4.html)
-pub fn make_vec2<N: Scalar>(ptr: &[N]) -> TVec2<N> {
+pub fn make_vec2<N: Scalar + Copy>(ptr: &[N]) -> TVec2<N> {
     TVec2::from_column_slice(ptr)
 }
 
@@ -280,7 +280,7 @@ pub fn vec2_to_vec3<N: Number>(v: &TVec2<N>) -> TVec3<N> {
 /// * [`vec3_to_vec1`](fn.vec3_to_vec1.html)
 /// * [`vec3_to_vec2`](fn.vec3_to_vec2.html)
 /// * [`vec3_to_vec4`](fn.vec3_to_vec4.html)
-pub fn vec3_to_vec3<N: Scalar>(v: &TVec3<N>) -> TVec3<N> {
+pub fn vec3_to_vec3<N: Scalar + Copy>(v: &TVec3<N>) -> TVec3<N> {
     *v
 }
 
@@ -294,7 +294,7 @@ pub fn vec3_to_vec3<N: Scalar>(v: &TVec3<N>) -> TVec3<N> {
 /// * [`vec3_to_vec1`](fn.vec3_to_vec1.html)
 /// * [`vec3_to_vec2`](fn.vec3_to_vec2.html)
 /// * [`vec3_to_vec4`](fn.vec3_to_vec4.html)
-pub fn vec4_to_vec3<N: Scalar>(v: &TVec4<N>) -> TVec3<N> {
+pub fn vec4_to_vec3<N: Scalar + Copy>(v: &TVec4<N>) -> TVec3<N> {
     TVec3::new(v.x, v.y, v.z)
 }
 
@@ -305,7 +305,7 @@ pub fn vec4_to_vec3<N: Scalar>(v: &TVec4<N>) -> TVec3<N> {
 /// * [`make_vec1`](fn.make_vec1.html)
 /// * [`make_vec2`](fn.make_vec2.html)
 /// * [`make_vec4`](fn.make_vec4.html)
-pub fn make_vec3<N: Scalar>(ptr: &[N]) -> TVec3<N> {
+pub fn make_vec3<N: Scalar + Copy>(ptr: &[N]) -> TVec3<N> {
     TVec3::from_column_slice(ptr)
 }
 
@@ -367,7 +367,7 @@ pub fn vec3_to_vec4<N: Number>(v: &TVec3<N>) -> TVec4<N> {
 /// * [`vec4_to_vec1`](fn.vec4_to_vec1.html)
 /// * [`vec4_to_vec2`](fn.vec4_to_vec2.html)
 /// * [`vec4_to_vec3`](fn.vec4_to_vec3.html)
-pub fn vec4_to_vec4<N: Scalar>(v: &TVec4<N>) -> TVec4<N> {
+pub fn vec4_to_vec4<N: Scalar + Copy>(v: &TVec4<N>) -> TVec4<N> {
     *v
 }
 
@@ -378,18 +378,18 @@ pub fn vec4_to_vec4<N: Scalar>(v: &TVec4<N>) -> TVec4<N> {
 /// * [`make_vec1`](fn.make_vec1.html)
 /// * [`make_vec2`](fn.make_vec2.html)
 /// * [`make_vec3`](fn.make_vec3.html)
-pub fn make_vec4<N: Scalar>(ptr: &[N]) -> TVec4<N> {
+pub fn make_vec4<N: Scalar + Copy>(ptr: &[N]) -> TVec4<N> {
     TVec4::from_column_slice(ptr)
 }
 
 /// Converts a matrix or vector to a slice arranged in column-major order.
-pub fn value_ptr<N: Scalar, R: Dimension, C: Dimension>(x: &TMat<N, R, C>) -> &[N]
+pub fn value_ptr<N: Scalar + Copy, R: Dimension, C: Dimension>(x: &TMat<N, R, C>) -> &[N]
 where DefaultAllocator: Alloc<N, R, C> {
     x.as_slice()
 }
 
 /// Converts a matrix or vector to a mutable slice arranged in column-major order.
-pub fn value_ptr_mut<N: Scalar, R: Dimension, C: Dimension>(x: &mut TMat<N, R, C>) -> &mut [N]
+pub fn value_ptr_mut<N: Scalar + Copy, R: Dimension, C: Dimension>(x: &mut TMat<N, R, C>) -> &mut [N]
 where DefaultAllocator: Alloc<N, R, C> {
     x.as_mut_slice()
 }

nalgebra-glm/src/gtc/ulp.rs

@@ -7,7 +7,7 @@ pub fn float_distance<T>(x: T, y: T) -> u64 {
     unimplemented!()
 }
 
-pub fn float_distance2<N: Scalar>(x: &TVec2<N>, y: &TVec2<N>) -> TVec<u64, U2> {
+pub fn float_distance2<N: Scalar + Copy>(x: &TVec2<N>, y: &TVec2<N>) -> TVec<u64, U2> {
     unimplemented!()
 }
 

nalgebra-glm/src/integer.rs

@@ -7,22 +7,22 @@ pub fn bitCount<T>(v: T) -> i32 {
     unimplemented!()
 }
 
-pub fn bitCount2<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<i32, D>
+pub fn bitCount2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<i32, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
 
-pub fn bitfieldExtract<N: Scalar, D: Dimension>(Value: &TVec<N, D>, Offset: i32, Bits: i32) -> TVec<N, D>
+pub fn bitfieldExtract<N: Scalar + Copy, D: Dimension>(Value: &TVec<N, D>, Offset: i32, Bits: i32) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
 
-pub fn bitfieldInsert<N: Scalar, D: Dimension>(Base: &TVec<N, D>, Insert: &TVec<N, D>, Offset: i32, Bits: i32) -> TVec<N, D>
+pub fn bitfieldInsert<N: Scalar + Copy, D: Dimension>(Base: &TVec<N, D>, Insert: &TVec<N, D>, Offset: i32, Bits: i32) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
 
-pub fn bitfieldReverse<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
+pub fn bitfieldReverse<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<N, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -31,7 +31,7 @@ pub fn findLSB<IU>(x: IU) -> u32 {
     unimplemented!()
 }
 
-pub fn findLSB2<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<i32, D>
+pub fn findLSB2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<i32, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
@@ -40,27 +40,27 @@ pub fn findMSB<IU>(x: IU) -> i32 {
     unimplemented!()
 }
 
-pub fn findMSB2<N: Scalar, D: Dimension>(v: &TVec<N, D>) -> TVec<i32, D>
+pub fn findMSB2<N: Scalar + Copy, D: Dimension>(v: &TVec<N, D>) -> TVec<i32, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
 
-pub fn imulExtended<N: Scalar, D: Dimension>(x: &TVec<i32, D>, y: &TVec<i32, D>, msb: &TVec<i32, D>, lsb: &TVec<i32, D>)
+pub fn imulExtended<N: Scalar + Copy, D: Dimension>(x: &TVec<i32, D>, y: &TVec<i32, D>, msb: &TVec<i32, D>, lsb: &TVec<i32, D>)
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
 
-pub fn uaddCarry<N: Scalar, D: Dimension>(x: &TVec<u32, D>, y: &TVec<u32, D>, carry: &TVec<u32, D>) -> TVec<u32, D>
+pub fn uaddCarry<N: Scalar + Copy, D: Dimension>(x: &TVec<u32, D>, y: &TVec<u32, D>, carry: &TVec<u32, D>) -> TVec<u32, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }
 
-pub fn umulExtended<N: Scalar, D: Dimension>(x: &TVec<u32, D>, y: &TVec<u32, D>, msb: &TVec<u32, D>, lsb: &TVec<u32, D>)
+pub fn umulExtended<N: Scalar + Copy, D: Dimension>(x: &TVec<u32, D>, y: &TVec<u32, D>, msb: &TVec<u32, D>, lsb: &TVec<u32, D>)
     where DefaultAllocator: Alloc<N, D> {
 unimplemented!()
 }
 
-pub fn usubBorrow<N: Scalar, D: Dimension>(x: &TVec<u32, D>, y: &TVec<u32, D>, borrow: &TVec<u32, D>) -> TVec<u32, D>
+pub fn usubBorrow<N: Scalar + Copy, D: Dimension>(x: &TVec<u32, D>, y: &TVec<u32, D>, borrow: &TVec<u32, D>) -> TVec<u32, D>
     where DefaultAllocator: Alloc<N, D> {
     unimplemented!()
 }

nalgebra-glm/src/matrix.rs

@@ -40,7 +40,7 @@ where
 }
 
 /// The transpose of the matrix `m`.
-pub fn transpose<N: Scalar, R: Dimension, C: Dimension>(x: &TMat<N, R, C>) -> TMat<N, C, R>
+pub fn transpose<N: Scalar + Copy, R: Dimension, C: Dimension>(x: &TMat<N, R, C>) -> TMat<N, C, R>
 where DefaultAllocator: Alloc<N, R, C> {
     x.transpose()
 }

nalgebra-glm/src/packing.rs

@@ -3,50 +3,50 @@ use na::Scalar;
 use crate::aliases::{Vec2, Vec4, UVec2};
 
 
-pub fn packDouble2x32<N: Scalar>(v: &UVec2) -> f64 {
+pub fn packDouble2x32<N: Scalar + Copy>(v: &UVec2) -> f64 {
     unimplemented!()
 }
 
-pub fn packHalf2x16<N: Scalar>(v: &Vec2) -> u32 {
+pub fn packHalf2x16<N: Scalar + Copy>(v: &Vec2) -> u32 {
     unimplemented!()
 }
 
-pub fn packSnorm2x16<N: Scalar>(v: &Vec2) -> u32 {
+pub fn packSnorm2x16<N: Scalar + Copy>(v: &Vec2) -> u32 {
     unimplemented!()
 }
 
-pub fn packSnorm4x8<N: Scalar>(v: &Vec4) -> u32 {
+pub fn packSnorm4x8<N: Scalar + Copy>(v: &Vec4) -> u32 {
     unimplemented!()
 }
 
-pub fn packUnorm2x16<N: Scalar>(v: &Vec2) -> u32 {
+pub fn packUnorm2x16<N: Scalar + Copy>(v: &Vec2) -> u32 {
     unimplemented!()
 }
 
-pub fn packUnorm4x8<N: Scalar>(v: &Vec4) -> u32 {
+pub fn packUnorm4x8<N: Scalar + Copy>(v: &Vec4) -> u32 {
     unimplemented!()
 }
 
-pub fn unpackDouble2x32<N: Scalar>(v: f64) -> UVec2 {
+pub fn unpackDouble2x32<N: Scalar + Copy>(v: f64) -> UVec2 {
     unimplemented!()
 }
 
-pub fn unpackHalf2x16<N: Scalar>(v: u32) -> Vec2 {
+pub fn unpackHalf2x16<N: Scalar + Copy>(v: u32) -> Vec2 {
     unimplemented!()
 }
 
-pub fn unpackSnorm2x16<N: Scalar>(p: u32) -> Vec2 {
+pub fn unpackSnorm2x16<N: Scalar + Copy>(p: u32) -> Vec2 {
     unimplemented!()
 }
 
-pub fn unpackSnorm4x8<N: Scalar>(p: u32) -> Vec4 {
+pub fn unpackSnorm4x8<N: Scalar + Copy>(p: u32) -> Vec4 {
     unimplemented!()
 }
 
-pub fn unpackUnorm2x16<N: Scalar>(p: u32) -> Vec2 {
+pub fn unpackUnorm2x16<N: Scalar + Copy>(p: u32) -> Vec2 {
     unimplemented!()
 }
 
-pub fn unpackUnorm4x8<N: Scalar>(p: u32) -> Vec4 {
+pub fn unpackUnorm4x8<N: Scalar + Copy>(p: u32) -> Vec4 {
     unimplemented!()
 }

nalgebra-glm/src/traits.rs

@@ -11,16 +11,16 @@ impl<D: DimName + DimMin<D, Output = Self>> Dimension for D {}
 
 /// A number that can either be an integer or a float.
 pub trait Number:
-    Scalar + Ring + Lattice + AbsDiffEq<Epsilon = Self> + Signed + FromPrimitive + Bounded
+    Scalar + Copy + Ring + Lattice + AbsDiffEq<Epsilon = Self> + Signed + FromPrimitive + Bounded
 {
 }
 
-impl<T: Scalar + Ring + Lattice + AbsDiffEq<Epsilon = Self> + Signed + FromPrimitive + Bounded>
+impl<T: Scalar + Copy + Ring + Lattice + AbsDiffEq<Epsilon = Self> + Signed + FromPrimitive + Bounded>
     Number for T
 {}
 
 #[doc(hidden)]
-pub trait Alloc<N: Scalar, R: Dimension, C: Dimension = U1>:
+pub trait Alloc<N: Scalar + Copy, R: Dimension, C: Dimension = U1>:
     Allocator<N, R>
     + Allocator<N, C>
     + Allocator<N, U1, R>
@@ -50,7 +50,7 @@ pub trait Alloc<N: Scalar, R: Dimension, C: Dimension = U1>:
 {
 }
 
-impl<N: Scalar, R: Dimension, C: Dimension, T> Alloc<N, R, C> for T where T: Allocator<N, R>
+impl<N: Scalar + Copy, R: Dimension, C: Dimension, T> Alloc<N, R, C> for T where T: Allocator<N, R>
         + Allocator<N, C>
         + Allocator<N, U1, R>
         + Allocator<N, U1, C>

src/base/array_storage.rs

@@ -253,7 +253,7 @@ where
 #[cfg(feature = "serde-serialize")]
 impl<N, R, C> Serialize for ArrayStorage<N, R, C>
 where
-    N: Scalar + Serialize,
+    N: Scalar + Copy + Serialize,
     R: DimName,
     C: DimName,
     R::Value: Mul<C::Value>,
@@ -274,7 +274,7 @@ where
 #[cfg(feature = "serde-serialize")]
 impl<'a, N, R, C> Deserialize<'a> for ArrayStorage<N, R, C>
 where
-    N: Scalar + Deserialize<'a>,
+    N: Scalar + Copy + Deserialize<'a>,
     R: DimName,
     C: DimName,
     R::Value: Mul<C::Value>,
@@ -312,7 +312,7 @@ where
 #[cfg(feature = "serde-serialize")]
 impl<'a, N, R, C> Visitor<'a> for ArrayStorageVisitor<N, R, C>
 where
-    N: Scalar + Deserialize<'a>,
+    N: Scalar + Copy + Deserialize<'a>,
     R: DimName,
     C: DimName,
     R::Value: Mul<C::Value>,

src/base/construction.rs

@@ -781,7 +781,7 @@ impl<N, R, C> Arbitrary for MatrixMN<N, R, C>
 where
     R: Dim,
     C: Dim,
-    N: Scalar + Arbitrary + Send,
+    N: Scalar + Copy + Arbitrary + Send,
     DefaultAllocator: Allocator<N, R, C>,
     Owned<N, R, C>: Clone + Send,
 {

src/geometry/point_construction.rs

@@ -138,7 +138,7 @@ where
 }
 
 #[cfg(feature = "arbitrary")]
-impl<N: Scalar + Arbitrary + Send, D: DimName> Arbitrary for Point<N, D>
+impl<N: Scalar + Copy + Arbitrary + Send, D: DimName> Arbitrary for Point<N, D>
 where
     DefaultAllocator: Allocator<N, D>,
     <DefaultAllocator as Allocator<N, D>>::Buffer: Send,

src/geometry/translation_construction.rs

@@ -59,7 +59,7 @@ where
 }
 
 #[cfg(feature = "arbitrary")]
-impl<N: Scalar + Arbitrary, D: DimName> Arbitrary for Translation<N, D>
+impl<N: Scalar + Copy + Arbitrary, D: DimName> Arbitrary for Translation<N, D>
 where
     DefaultAllocator: Allocator<N, D>,
     Owned<N, D>: Send,