From: Richard M. Stallman <rms@gnu.org>
Date: Fri, 16 Aug 1996 19:08:24 +0000 (+0000)
Subject: (Fbyte_code): For relative gotos, force signed arithmetic.
X-Git-Tag: emacs-20.1~4071
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=eb086ca7485319721d1a7c8f2c54a2360fb0eab3;p=emacs.git

(Fbyte_code): For relative gotos, force signed arithmetic.
---

diff --git a/src/bytecode.c b/src/bytecode.c
index 3221970ccac..4fb6d86bb69 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -475,14 +475,14 @@ If the third argument is incorrect, Emacs may crash.")
 
 	case BRgoto:
 	  QUIT;
-	  pc += *pc - 127;
+	  pc += (int) *pc - 127;
 	  break;
 
 	case BRgotoifnil:
 	  if (NILP (POP))
 	    {
 	      QUIT;
-	      pc += *pc - 128;
+	      pc += (int) *pc - 128;
 	    }
 	  pc++;
 	  break;
@@ -491,7 +491,7 @@ If the third argument is incorrect, Emacs may crash.")
 	  if (!NILP (POP))
 	    {
 	      QUIT;
-	      pc += *pc - 128;
+	      pc += (int) *pc - 128;
 	    }
 	  pc++;
 	  break;