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Impl DMatrix/DVector::from_vec_storage

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These methods enable safe & const construction of DMatrix/DVector from a
given VecStorage.
This commit is contained in:
Andreas Longva 2021-04-17 17:00:37 +02:00
parent 9142dc8f84
commit d2c11ad797
1 changed files with 21 additions and 0 deletions
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21
src/base/vec_storage.rs
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@ -15,6 +15,7 @@ use crate::base::{Scalar, Vector};
#[cfg(feature = "abomonation-serialize")]
use abomonation::Abomonation;
use crate::{DMatrix, DVector};
/*
*
@ -410,3 +411,23 @@ impl<T> Extend<T> for VecStorage<T, Dynamic, U1> {
self.nrows = Dynamic::new(self.data.len());
}
}
impl<T> DMatrix<T>
{
/// Creates a new heap-allocated matrix from the given [VecStorage].
pub const fn from_vec_storage(storage: VecStorage<T, Dynamic, Dynamic>) -> Self {
// This is sound because the dimensions of the matrix and the storage are guaranteed
// to be the same
unsafe { Self::from_data_statically_unchecked(storage) }
}
}
impl<T> DVector<T>
{
/// Creates a new heap-allocated matrix from the given [VecStorage].
pub const fn from_vec_storage(storage: VecStorage<T, Dynamic, U1>) -> Self {
// This is sound because the dimensions of the matrix and the storage are guaranteed
// to be the same
unsafe { Self::from_data_statically_unchecked(storage) }
}
}