From c999f38356ce5c291296ab2e09ea584df45d2a9b Mon Sep 17 00:00:00 2001
From: Chris Wong <lambda.fairy@gmail.com>
Date: Sat, 7 Jan 2023 21:08:03 +1100
Subject: [PATCH] Add comparison with `std::io::Error`

---
 README.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/README.md b/README.md
index 610ad84..48def10 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,19 @@ errno = "*"
 ```
 
 
+## Comparison with `std::io::Error`
+
+The standard library provides [`Error::last_os_error`][last_os_error] which fetches `errno` in the same way.
+
+This crate provides these extra features:
+
+- No heap allocations
+- Optional `#![no_std]` support
+- A `set_errno` function
+
+[last_os_error]: https://doc.rust-lang.org/std/io/struct.Error.html#method.last_os_error
+
+
 ## Examples
 
 ```rust