lax/
error.rs

1use thiserror::Error;
2
3pub type Result<T> = ::std::result::Result<T, Error>;
4
5#[derive(Error, Debug)]
6pub enum Error {
7    #[error(
8        "Invalid value for LAPACK subroutine {}-th argument",
9        -return_code
10    )]
11    LapackInvalidValue { return_code: i32 },
12
13    #[error(
14        "Computational failure in LAPACK subroutine: return_code = {}",
15        return_code
16    )]
17    LapackComputationalFailure { return_code: i32 },
18
19    /// Strides of the array is not supported
20    #[error("Invalid shape")]
21    InvalidShape,
22}
23
24pub trait AsLapackResult {
25    fn as_lapack_result(self) -> Result<()>;
26}
27
28impl AsLapackResult for i32 {
29    fn as_lapack_result(self) -> Result<()> {
30        if self > 0 {
31            return Err(Error::LapackComputationalFailure { return_code: self });
32        }
33        if self < 0 {
34            return Err(Error::LapackInvalidValue { return_code: self });
35        }
36        Ok(())
37    }
38}
lax/error.rs

lax/
error.rs
