From 5e687e014c1f46894672ccabadf79a366a5e93d6 Mon Sep 17 00:00:00 2001 From: msofer Date: Fri, 24 Aug 2007 11:22:09 +0000 Subject: * generic/tclCompile.c: replaced copy loop that tripped some compilers with memmove [Bug 1780870] FossilOrigin-Name: abcd910d180774226d14905cdda213965e47db13 --- ChangeLog | 5 +++++ generic/tclCompile.c | 10 +++++----- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/ChangeLog b/ChangeLog index 81324d8..483e1bb 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2007-08-24 Miguel Sofer + + * generic/tclCompile.c: replaced copy loop that tripped some + compilers with memmove [Bug 1780870] + 2007-08-14 Don Porter * tests/trace.test: Backport some tests. diff --git a/generic/tclCompile.c b/generic/tclCompile.c index 4a6fac5..59617b0 100644 --- a/generic/tclCompile.c +++ b/generic/tclCompile.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclCompile.c,v 1.43.2.7 2006/11/28 22:20:00 andreas_kupries Exp $ + * RCS: @(#) $Id: tclCompile.c,v 1.43.2.8 2007/08/24 11:22:16 msofer Exp $ */ #include "tclInt.h" @@ -2837,10 +2837,10 @@ TclFixupForwardJump(envPtr, jumpFixupPtr, jumpDist, distThreshold) TclExpandCodeArray(envPtr); } jumpPc = (envPtr->codeStart + jumpFixupPtr->codeOffset); - for (numBytes = envPtr->codeNext-jumpPc-2, p = jumpPc+2+numBytes-1; - numBytes > 0; numBytes--, p--) { - p[3] = p[0]; - } + numBytes = envPtr->codeNext-jumpPc-2; + p = jumpPc+2; + memmove(p+3, p, numBytes); + envPtr->codeNext += 3; jumpDist += 3; switch (jumpFixupPtr->jumpType) { -- cgit v0.12