libmapper-rs 1.4.0

Rust bindings for libmapper
Documentation 
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use std::ffi::c_void;

use crate::bindings::mpr_list_get_next;

/// Read a list of items from a libmapper list.
/// 
/// `constructor` is passed a pointer to the backing libmapper object and should return a new wrapped instance of the item.
pub fn read_list<T, J: Fn(*mut c_void) -> T>(list: *mut *mut c_void, constructor: J) -> Vec<T> {
  let mut ptr = list;

  let mut values = Vec::new();

  while !ptr.is_null() {
    let val = constructor(unsafe {*ptr});
    values.push(val);

    ptr = unsafe {  mpr_list_get_next(ptr) };
  }

  values
}