Macro ffi_vec 

macro_rules! ffi_vec {
    ($vec_type:ident($iter_type:ident, $iter_mut_type:ident) -> $type:ident,
        len($len_func:path),
        get($get_func:path),
        get_mut($get_mut_func:path),
        grow($grow_func:path),
        clear($clear_func:path)) => { ... };
}

Generates iterator types for FFI containers.

Example

mod bindings {
    pub enum ContainerType {}
    pub enum ContainerItem {}

    extern {
        pub fn container_name_len(c: *const ContainerType) -> usize;
        pub fn container_name_get(c: *const ContainerType, pos: usize) -> *const ContainerItem;
        pub fn container_name_get_mut(c: *mut ContainerType, pos: usize) -> *mut ContainerItem;
        pub fn container_name_grow(c: *mut ContainerType) -> *mut ContainerItem;
        pub fn container_name_clear(c: *mut ContainerType);
    }
}

use bindings::{ContainerType, ContainerItem};

easy_ffi_wrapper::ffi_vec!(
    ContainerType(ContainerIter, ContainerIterMut) -> ContainerItem,
    len(bindings::container_name_len),
    get(bindings::container_name_get),
    get_mut(bindings::container_name_get_mut),
    grow(bindings::container_name_grow),
    clear(bindings::container_name_clear)
);