Trait ROrd 

pub trait ROrd {
    // Required method
    fn r_cmp(&self, other: &Self) -> i32;

    // Provided method
    #[doc(hidden)]
    unsafe extern "C" fn __ROrd_r_cmp_shim(
        data: *mut c_void,
        argc: i32,
        argv: *const SEXP,
    ) -> SEXP
       where Self: Sized + ROrd + TypedExternal + Send + 'static { ... }
}

Adapter trait for std::cmp::Ord.

Provides total ordering comparison for R sorting operations. Automatically implemented for any type that implements Ord.

Methods

• r_cmp(&self, other: &Self) (cmp() in R) - Returns -1, 0, or 1

Example

#[derive(Ord, PartialOrd, Eq, PartialEq, ExternalPtr)]
struct Priority(u32);

#[miniextendr]
impl miniextendr_api::adapter_traits::ROrd for Priority {}

Required Methods

fn r_cmp(&self, other: &Self) -> i32

Compare with another value.

Returns:

• -1 if self < other
• 0 if self == other
• 1 if self > other

Provided Methods

#[doc(hidden)]

unsafe extern "C" fn __ROrd_r_cmp_shim( data: *mut c_void, argc: i32, argv: *const SEXP, ) -> SEXP

where Self: Sized + ROrd + TypedExternal + Send + 'static,

Method shim for ROrd::r_cmp.

Converts SEXP arguments, calls the method, and returns SEXP result. Both Rust panics and R longjmps are caught via with_r_unwind_protect.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: Ord> ROrd for T