From 1fc7a0bc3fe203205cf8d7b4b1ac14ca95e130f7 Mon Sep 17 00:00:00 2001
From: roytam1 <roytam@gmail.com>
Date: Fri, 1 Apr 2022 14:24:48 +0800
Subject: [PATCH] import from UXP: Use ptrdiff_t in RangedPtr. (a4dd5cc0)

---
 mfbt/RangedPtr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mfbt/RangedPtr.h b/mfbt/RangedPtr.h
index 6e9ce6072..df398c112 100644
--- a/mfbt/RangedPtr.h
+++ b/mfbt/RangedPtr.h
@@ -212,7 +212,7 @@ public:
     return *this;
   }
 
-  T& operator[](int aIndex) const
+  T& operator[](ptrdiff_t aIndex) const
   {
     MOZ_ASSERT(size_t(aIndex > 0 ? aIndex : -aIndex) <= size_t(-1) / sizeof(T));
     return *create(mPtr + aIndex);