added C and Python bindings

src/bin/main.rs

@@ -62,7 +62,7 @@ fn main() -> io::Result<()> {
         ("Runs",          Onod::runs(&input_data)),
         ("RunUps",        Onod::run_ups(&input_data)),
         ("Prediction",    Onod::prediction(&input_data)),
-        ("UnCorrelation", Onod::un_correlation(&input_data)),
+        ("UnCorrelation", Onod::uncorrelation(&input_data)),
     ];
 
     for (test_name, (observation, z_score, p_value)) in &tests {

src/ffi.rs

@@ -0,0 +1,43 @@
+use std::ffi::{c_char, c_double, c_uchar, CStr};
+
+use crate::Onod;
+
+#[no_mangle]
+pub extern "C" fn onod_run(
+    test: *const c_char,
+    samples: *const c_uchar,
+    len: usize,
+    result: *mut c_double,
+) -> bool {
+    // Check for null pointers
+    if test.is_null() || samples.is_null() || result.is_null() {
+        eprintln!("Error: Null pointer passed to onod_run.");
+        return false;
+    }
+
+    // Convert C string to Rust string
+    let test = unsafe {
+        match CStr::from_ptr(test).to_str() {
+            Ok(s) => s,
+            Err(_) => {
+                eprintln!("Error: Invalid UTF-8 string passed to onod_run.");
+                return false;
+            }
+        }
+    };
+
+    // Convert samples to a Rust slice
+    let samples = unsafe { std::slice::from_raw_parts(samples, len as usize) };
+
+    // Call the Rust `run` function
+    let (obs, z, p) = Onod::run(test, samples);
+
+    // Write results to the output buffer
+    unsafe {
+        *result.offset(0) = obs;
+        *result.offset(1) = z;
+        *result.offset(2) = p;
+    }
+
+    true
+}

src/lib.rs

@@ -1,3 +1,33 @@
 pub struct Onod;
 
-mod uniformity;
+mod uniformity;
+pub mod ffi;
+#[cfg(feature = "python")]
+pub mod python;
+
+impl Onod {
+    pub fn run(test: &str, samples: &[u8]) -> (f64, f64, f64) {
+
+        match test {
+            "avalanche" => Onod::avalanche(samples),
+            "chi_bit" => Onod::chi_bit(samples),
+            "chi_byte" => Onod::chi_byte(samples),
+            "compression" => Onod::compression(samples),
+            "gaps" => Onod::gaps(samples),
+            "ks" => Onod::ks(samples),
+            "mean_byte" => Onod::mean_byte(samples),
+            "monobit" => Onod::monobit(samples),
+            "pi" => Onod::pi(samples),
+            "prediction" => Onod::prediction(samples),
+            "runs" => Onod::runs(samples),
+            "run_ups" => Onod::run_ups(samples),
+            "shannon" => Onod::shannon(samples),
+            "shells" => Onod::shells(samples),
+            "uncorrelation" => Onod::uncorrelation(samples),
+            _ => {
+                eprintln!("Error: Unknown test '{}'", test);
+                (-1.0, 0.0, 0.0) // Default values for unknown test
+            }
+        }
+    }
+}

src/python.rs

@@ -0,0 +1,19 @@
+use pyo3::prelude::*;
+use super::Onod as O;
+
+#[pyclass]
+struct Onod;
+
+#[pymethods]
+impl Onod {
+    #[staticmethod]
+    pub fn run(test: &str, samples: Vec<u8>) -> (f64, f64, f64) {
+        O::run(test, &samples)
+    }
+}
+
+#[pymodule]
+fn onod(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_class::<Onod>()?;
+    Ok(())
+}