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Make SymmetricEigenScalar usable but not implementable #1448

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Make SymmetricEigenScalar usable but not implementable #1448

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2 changes: 1 addition & 1 deletion nalgebra-lapack/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -103,7 +103,7 @@ pub use self::qr::QR;
pub use self::qz::QZ;
pub use self::schur::Schur;
pub use self::svd::SVD;
pub use self::symmetric_eigen::SymmetricEigen;
pub use self::symmetric_eigen::{SymmetricEigen, SymmetricEigenScalar};

trait ComplexHelper {
type RealPart;
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6 changes: 5 additions & 1 deletion nalgebra-lapack/src/symmetric_eigen.rs
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Expand Up @@ -161,14 +161,18 @@ where
}
}

pub trait Sealed {}
impl Sealed for f32 {}
impl Sealed for f64 {}

/*
*
* Lapack functions dispatch.
*
*/
/// Trait implemented by scalars for which Lapack implements the eigendecomposition of symmetric
/// real matrices.
pub trait SymmetricEigenScalar: Scalar {
pub trait SymmetricEigenScalar: Scalar + Sealed {
#[allow(missing_docs)]
fn xsyev(
jobz: u8,
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