diffsol-c 0.9.0

A diffsol wrapper featuring runtime scalar/matrix/solver types and a C API
Documentation 
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// Data type Python enum

#[cfg(feature = "external")]
use diffsl::execution::external::ExternSymbols;
use diffsol::DiffSlScalar;
use schemars::JsonSchema;
use serde::{Deserialize, Serialize};

/// The scalar type of the values of an array.
///
/// The C values are `DIFFSOL_SCALAR_TYPE_F32` (0) and `DIFFSOL_SCALAR_TYPE_F64` (1). A
/// [crate::tensor::TensorView] keeps this value in its `dtype` field.
///
/// cbindgen:prefix-with-name
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize, JsonSchema)]
#[serde(rename_all = "snake_case")]
#[repr(i32)]
pub enum ScalarType {
    F32 = 0,
    F64 = 1,
}

pub trait Scalar: DiffSlScalar + ToScalarType {}

impl<T: DiffSlScalar + ToScalarType> Scalar for T {}

#[cfg(feature = "external")]
pub trait ExternalScalar: Scalar + ExternSymbols {}

#[cfg(feature = "external")]
impl<T: Scalar + ExternSymbols> ExternalScalar for T {}

pub trait ToScalarType {
    fn scalar_type() -> ScalarType;
}

impl ToScalarType for f32 {
    fn scalar_type() -> ScalarType {
        ScalarType::F32
    }
}

impl ToScalarType for f64 {
    fn scalar_type() -> ScalarType {
        ScalarType::F64
    }
}