From 50728e4cda9e2bc22e73c1c57a8565ebee6017a9 Mon Sep 17 00:00:00 2001
From: bluss <bluss@users.noreply.github.com>
Date: Sun, 25 Nov 2018 09:23:04 +0100
Subject: [PATCH] DOC: Add doc for additional array features flags

---
 src/array.rs | 12 ++++++++++++
 src/lib.rs   |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/src/array.rs b/src/array.rs
index be93f0f..5fcc9c5 100644
--- a/src/array.rs
+++ b/src/array.rs
@@ -1,5 +1,17 @@
 
 /// Trait for fixed size arrays.
+///
+/// This trait is implemented for some specific array sizes, see
+/// the implementor list below. At the current state of Rust we can't
+/// make this fully general for every array size.
+///
+/// The following crate features add more array sizes (and they are not
+/// enabled by default due to their impact on compliation speed).
+///
+/// - `array-sizes-33-128`: All sizes 33 to 128 are implemented
+///   (a few in this range are included by default).
+/// - `array-sizes-129-255`: All sizes 129 to 255 are implemented
+///   (a few in this range are included by default).
 pub unsafe trait Array {
     /// The array’s element type
     type Item;
diff --git a/src/lib.rs b/src/lib.rs
index 8f08401..50903c5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -18,6 +18,9 @@
 //! - `serde-1`
 //!   - Optional
 //!   - Enable serialization for ArrayVec and ArrayString using serde 1.0
+//! - `array-sizes-33-128`, `array-sizes-129-255`
+//!   - Optional
+//!   - Enable more array sizes (see [Array] for more information)
 //!
 //! ## Rust Version
 //!