From 369bd8ef3a31ce3a324ee9b993ea312968707197 Mon Sep 17 00:00:00 2001
From: linkmauve <linkmauve@linkmauve.fr>
Date: Wed, 8 Sep 2021 21:29:40 +0200
Subject: Make Errno::result() inline

This makes the success case a single `cmpl $-1, %eax` followed
with a non-taken conditional jump, instead of the current `callq`
which is always taken.

I have not benchmarked the difference, but it is an obvious
improvement.
---
 src/errno.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/errno.rs b/src/errno.rs
index 8e3a924b..2be3179c 100644
--- a/src/errno.rs
+++ b/src/errno.rs
@@ -103,6 +103,7 @@ impl Errno {
 
     /// Returns `Ok(value)` if it does not contain the sentinel value. This
     /// should not be used when `-1` is not the errno sentinel value.
+    #[inline]
     pub fn result<S: ErrnoSentinel + PartialEq<S>>(value: S) -> Result<S> {
         if value == S::sentinel() {
             Err(Self::last())
-- 
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