chore: comments

__ffi/dotalib/dotalib.h

@@ -5,8 +5,17 @@
 #include <stdlib.h>
 
 
+/**
+ * Get const string from rust
+ */
 const char *get_str(void);
 
+/**
+ * Get mut-able string from rust
+ */
 char *get_str_mut(void);
 
+/**
+ * Print line
+ */
 void println(const char *str);

__ffi/dotalib/src/lib.rs

@@ -1,18 +1,20 @@
 use std::{ffi::{CStr, CString}, os::raw::c_char};
 
+/// Print line
 #[no_mangle]
 pub unsafe extern "C" fn println(str: *const c_char) {
    let c_str = CStr::from_ptr(str).to_str().unwrap();
    println!("{}", c_str);
 }
 
+/// Get mut-able string from rust
 #[no_mangle]
 pub unsafe extern "C" fn get_str_mut() -> *mut c_char {
    let c_string = CString::new("hello world!").expect("Error!");
    c_string.into_raw()
 }
 
-
+/// Get const string from rust
 #[no_mangle]
 pub unsafe extern "C" fn get_str() -> *const c_char {
    let c_string = CString::new("hello world!").expect("Error!");