From 8d44c2450c2c64d323e2f23f71d766cd58be18ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Ho=C5=99e=C5=88ovsk=C3=BD?=
 <martin.horenovsky@gmail.com>
Date: Fri, 24 Apr 2020 20:58:29 +0200
Subject: [PATCH] Add some explanatory comments to ErrnoGuard

---
 src/catch2/internal/catch_errno_guard.hpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/catch2/internal/catch_errno_guard.hpp b/src/catch2/internal/catch_errno_guard.hpp
index b1d1fc1c..810ca99f 100644
--- a/src/catch2/internal/catch_errno_guard.hpp
+++ b/src/catch2/internal/catch_errno_guard.hpp
@@ -9,8 +9,12 @@
 
 namespace Catch {
 
+    //! Simple RAII class that stores the value of `errno`
+    //! at construction and restores it at destruction.
     class ErrnoGuard {
     public:
+        // Keep these outlined to avoid dragging in macros from <cerrno>
+
         ErrnoGuard();
         ~ErrnoGuard();
     private: