From 87b3085f6ec296e29b640f7edb3b9727795c7053 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 26 Jul 2025 03:12:56 +0000
Subject: [PATCH] Add comment explaining safe usage of typename T::element_type
 in not_null_hash

Co-authored-by: carsonRadtke <10507970+carsonRadtke@users.noreply.github.com>
---
 include/gsl/pointers | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/gsl/pointers b/include/gsl/pointers
index 2a032ab..282229f 100644
--- a/include/gsl/pointers
+++ b/include/gsl/pointers
@@ -231,6 +231,7 @@ template <class T>
 not_null<T> operator+(std::ptrdiff_t, const not_null<T>&) = delete;
 
 
+// T is conceptually a pointer so we don't have to worry about it being a reference and violating std::hash requirements
 template <class T, class U = typename T::element_type, bool = std::is_default_constructible<std::hash<U>>::value>
 struct not_null_hash
 {