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| author | dkf <donal.k.fellows@manchester.ac.uk> | 2010-02-02 16:13:46 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2010-02-02 16:13:46 (GMT) |
| commit | f887621bde119a1d5212ed918da217dd3aef2588 (patch) | |
| tree | dab3ebc74bbcc75f783e9a7246bbd571171ae07b | |
| parent | c1534c208e4eee03061c52b2d7de3ded03f8de37 (diff) | |
| download | tcl-f887621bde119a1d5212ed918da217dd3aef2588.zip tcl-f887621bde119a1d5212ed918da217dd3aef2588.tar.gz tcl-f887621bde119a1d5212ed918da217dd3aef2588.tar.bz2 | |
Ensure that decrements never assume that they can't do (actual) deletion.
| -rw-r--r-- | generic/tclVar.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/generic/tclVar.c b/generic/tclVar.c index 775c864..9977975 100644 --- a/generic/tclVar.c +++ b/generic/tclVar.c @@ -16,7 +16,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclVar.c,v 1.160.2.7 2010/02/02 00:42:41 dkf Exp $ + * RCS: @(#) $Id: tclVar.c,v 1.160.2.8 2010/02/02 16:13:46 dkf Exp $ */ #include "tclInt.h" @@ -3218,7 +3218,9 @@ Tcl_ArrayObjCmd( */ if (varPtr2 == protectedVarPtr) { - VarHashRefCount(varPtr2)--; + if (VarHashRefCount(varPtr2)-- == 1) { + CleanupVar(varPtr2, varPtr); + } } /* @@ -3247,7 +3249,9 @@ Tcl_ArrayObjCmd( */ if (protectedVarPtr) { - VarHashRefCount(protectedVarPtr)--; + if (VarHashRefCount(protectedVarPtr)-- == 1) { + CleanupVar(protectedVarPtr, varPtr); + } } return TCL_ERROR; } |