rssn 0.2.9

A comprehensive scientific computing library for Rust, aiming for feature parity with NumPy and SymPy.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

use std::ffi::c_char;

use crate::ffi_apis::common::from_json_string;
use crate::ffi_apis::common::to_json_string;
use crate::symbolic::convergence::analyze_convergence;
use crate::symbolic::core::Expr;

/// Analyzes the convergence of a series using JSON-serialized inputs.
///
/// Takes C-style strings containing JSON-serialized `Expr` for the series term
/// and `String` for the variable.
/// Returns a C-style string containing the JSON-serialized analysis result.
#[unsafe(no_mangle)]
pub extern "C" fn rssn_json_analyze_convergence(
    term_json: *const c_char,

    var_json: *const c_char,
) -> *mut c_char {
    let term: Option<Expr> = from_json_string(term_json);

    let var: Option<String> = from_json_string(var_json);

    match (term, var) {
        | (Some(t), Some(v)) => {
            let result = analyze_convergence(&t, &v);

            to_json_string(&result)
        },
        | _ => std::ptr::null_mut(),
    }
}