36 lines
953 B
Rust
36 lines
953 B
Rust
extern crate nalgebra as na;
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use na::{Vector3, Point3, Matrix3};
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fn main() {
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let v = Vector3::new(1.0f32, 0.0, 1.0);
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let p = Point3::new(1.0f32, 0.0, 1.0);
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let m = na::one::<Matrix3<f32>>();
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// Convert to arrays.
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let v_array = v.as_slice();
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let p_array = p.coords.as_slice();
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let m_array = m.as_slice();
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// Get data pointers.
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let v_pointer = v_array.as_ptr();
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let p_pointer = p_array.as_ptr();
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let m_pointer = m_array.as_ptr();
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/* Then pass the raw pointers to some graphics API. */
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unsafe {
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assert_eq!(*v_pointer, 1.0);
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assert_eq!(*v_pointer.offset(1), 0.0);
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assert_eq!(*v_pointer.offset(2), 1.0);
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assert_eq!(*p_pointer, 1.0);
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assert_eq!(*p_pointer.offset(1), 0.0);
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assert_eq!(*p_pointer.offset(2), 1.0);
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assert_eq!(*m_pointer, 1.0);
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assert_eq!(*m_pointer.offset(4), 1.0);
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assert_eq!(*m_pointer.offset(8), 1.0);
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}
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}
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