From a0f4c34a062fcbbdf3c1e0c93e6cb6bbee865843 Mon Sep 17 00:00:00 2001
From: Curtis Vogt <curtis.vogt@gmail.com>
Date: Wed, 30 Sep 2020 13:02:42 -0500
Subject: [PATCH] Fix invalidation with `pointer(::String, ::Integer)`

---
 base/strings/string.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/base/strings/string.jl b/base/strings/string.jl
index 1ebb85ff78dd2..a5a1c887272c2 100644
--- a/base/strings/string.jl
+++ b/base/strings/string.jl
@@ -92,7 +92,7 @@ String(s::CodeUnits{UInt8,String}) = s.s
 ## low-level functions ##
 
 pointer(s::String) = unsafe_convert(Ptr{UInt8}, s)
-pointer(s::String, i::Integer) = pointer(s)+(i-1)
+pointer(s::String, i::Integer) = pointer(s) + Int(i)::Int - 1
 
 @pure ncodeunits(s::String) = Core.sizeof(s)
 codeunit(s::String) = UInt8