From b0d3080ffe39f5fe029ee2d4938ce7a794d76140 Mon Sep 17 00:00:00 2001
From: Michael R Sweet <michael.r.sweet@gmail.com>
Date: Fri, 4 Jun 2021 11:03:24 -0400
Subject: [PATCH] Resolve clang warning.

---
 pdfio-token.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pdfio-token.c b/pdfio-token.c
index f7c1deb..a9e6214 100644
--- a/pdfio-token.c
+++ b/pdfio-token.c
@@ -421,9 +421,9 @@ _pdfioTokenRead(_pdfio_token_t *tb,	// I - Token buffer/stack
 		return (false);
 	      }
 	      else if (isdigit(tch))
-		ch = (char)((ch << 4) | (tch - '0'));
+		ch = ((ch & 255) << 4) | (tch - '0');
 	      else
-		ch = (char)((ch << 4) | (tolower(tch) - 'a' + 10));
+		ch = ((ch & 255) << 4) | (tolower(tch) - 'a' + 10);
 	    }
 	  }