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Merge pull request #331 from rust-ndarray/revise-flag-naming
Revise enum namings
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| //! Charactor flags, e.g. `'T'`, used in LAPACK API | ||
| /// Upper/Lower specification for seveal usages | ||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] | ||
| #[repr(u8)] | ||
| pub enum UPLO { | ||
| Upper = b'U', | ||
| Lower = b'L', | ||
| } | ||
|
|
||
| impl UPLO { | ||
| pub fn t(self) -> Self { | ||
| match self { | ||
| UPLO::Upper => UPLO::Lower, | ||
| UPLO::Lower => UPLO::Upper, | ||
| } | ||
| } | ||
|
|
||
| /// To use Fortran LAPACK API in lapack-sys crate | ||
| pub fn as_ptr(&self) -> *const i8 { | ||
| self as *const UPLO as *const i8 | ||
| } | ||
| } | ||
|
|
||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] | ||
| #[repr(u8)] | ||
| pub enum Transpose { | ||
| No = b'N', | ||
| Transpose = b'T', | ||
| Hermite = b'C', | ||
| } | ||
|
|
||
| impl Transpose { | ||
| /// To use Fortran LAPACK API in lapack-sys crate | ||
| pub fn as_ptr(&self) -> *const i8 { | ||
| self as *const Transpose as *const i8 | ||
| } | ||
| } | ||
|
|
||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] | ||
| #[repr(u8)] | ||
| pub enum NormType { | ||
| One = b'O', | ||
| Infinity = b'I', | ||
| Frobenius = b'F', | ||
| } | ||
|
|
||
| impl NormType { | ||
| pub fn transpose(self) -> Self { | ||
| match self { | ||
| NormType::One => NormType::Infinity, | ||
| NormType::Infinity => NormType::One, | ||
| NormType::Frobenius => NormType::Frobenius, | ||
| } | ||
| } | ||
|
|
||
| /// To use Fortran LAPACK API in lapack-sys crate | ||
| pub fn as_ptr(&self) -> *const i8 { | ||
| self as *const NormType as *const i8 | ||
| } | ||
| } | ||
|
|
||
| /// Flag for calculating eigenvectors or not | ||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] | ||
| #[repr(u8)] | ||
| pub enum JobEv { | ||
| /// Calculate eigenvectors in addition to eigenvalues | ||
| All = b'V', | ||
| /// Do not calculate eigenvectors. Only calculate eigenvalues. | ||
| None = b'N', | ||
| } | ||
|
|
||
| impl JobEv { | ||
| pub fn is_calc(&self) -> bool { | ||
| match self { | ||
| JobEv::All => true, | ||
| JobEv::None => false, | ||
| } | ||
| } | ||
|
|
||
| pub fn then<T, F: FnOnce() -> T>(&self, f: F) -> Option<T> { | ||
| if self.is_calc() { | ||
| Some(f()) | ||
| } else { | ||
| None | ||
| } | ||
| } | ||
|
|
||
| /// To use Fortran LAPACK API in lapack-sys crate | ||
| pub fn as_ptr(&self) -> *const i8 { | ||
| self as *const JobEv as *const i8 | ||
| } | ||
| } | ||
|
|
||
| /// Specifies how many of the columns of *U* and rows of *V*ᵀ are computed and returned. | ||
| /// | ||
| /// For an input array of shape *m*×*n*, the following are computed: | ||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] | ||
| #[repr(u8)] | ||
| pub enum JobSvd { | ||
| /// All *m* columns of *U* and all *n* rows of *V*ᵀ. | ||
| All = b'A', | ||
| /// The first min(*m*,*n*) columns of *U* and the first min(*m*,*n*) rows of *V*ᵀ. | ||
| Some = b'S', | ||
| /// No columns of *U* or rows of *V*ᵀ. | ||
| None = b'N', | ||
| } | ||
|
|
||
| impl JobSvd { | ||
| pub fn from_bool(calc_uv: bool) -> Self { | ||
| if calc_uv { | ||
| JobSvd::All | ||
| } else { | ||
| JobSvd::None | ||
| } | ||
| } | ||
|
|
||
| pub fn as_ptr(&self) -> *const i8 { | ||
| self as *const JobSvd as *const i8 | ||
| } | ||
| } | ||
|
|
||
| /// Specify whether input triangular matrix is unit or not | ||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] | ||
| #[repr(u8)] | ||
| pub enum Diag { | ||
| /// Unit triangular matrix, i.e. all diagonal elements of the matrix are `1` | ||
| Unit = b'U', | ||
| /// Non-unit triangular matrix. Its diagonal elements may be different from `1` | ||
| NonUnit = b'N', | ||
| } | ||
|
|
||
| impl Diag { | ||
| pub fn as_ptr(&self) -> *const i8 { | ||
| self as *const Diag as *const i8 | ||
| } | ||
| } |
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