rssn 0.2.9

A comprehensive scientific computing library for Rust, aiming for feature parity with NumPy and SymPy.
Documentation 
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use crate::symbolic::convergence::ConvergenceResult;
use crate::symbolic::convergence::analyze_convergence;
use crate::symbolic::core::Expr;

/// Analyzes the convergence of a series using direct pointers.
///
/// Takes a pointer to an `Expr` representing the series term and a C-style string
/// for the variable.
/// Returns a `ConvergenceResult` enum indicating the analysis outcome.
#[unsafe(no_mangle)]
pub extern "C" fn rssn_analyze_convergence_handle(
    term: *const Expr,

    var: *const std::ffi::c_char,
) -> ConvergenceResult {
    let term_ref = unsafe { &*term };

    let var_str = unsafe {
        if var.is_null() {
            return ConvergenceResult::Inconclusive;
        }

        std::ffi::CStr::from_ptr(var).to_string_lossy().into_owned()
    };

    analyze_convergence(term_ref, &var_str)
}