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| author | mig <mig> | 2011-04-13 13:09:19 (GMT) |
|---|---|---|
| committer | mig <mig> | 2011-04-13 13:09:19 (GMT) |
| commit | d0fc192da1e9bd4f6bb87ea56aaf92809c28c790 (patch) | |
| tree | 13523f8aaf8376791660f1b2b620a68cf75c470a | |
| parent | 95cdce741930c820a246bd5d24fc5e579c71673e (diff) | |
| download | tcl-d0fc192da1e9bd4f6bb87ea56aaf92809c28c790.zip tcl-d0fc192da1e9bd4f6bb87ea56aaf92809c28c790.tar.gz tcl-d0fc192da1e9bd4f6bb87ea56aaf92809c28c790.tar.bz2 | |
fix for [Bug 2662380], crash caused by appending to a variable with a write trace that unsets it
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | generic/tclVar.c | 3 |
2 files changed, 7 insertions, 1 deletions
@@ -1,3 +1,8 @@ +2011-04-13 Miguel Sofer <msofer@users.sf.net> + + * generic/tclVar.c: fix for [Bug 2662380], crash caused by + appending to a variable with a write trace that unsets it. + 2011-04-04 Don Porter <dgp@users.sourceforge.net> * README: Updated README files, repairing broken URLs and diff --git a/generic/tclVar.c b/generic/tclVar.c index 3312191..a434bae 100644 --- a/generic/tclVar.c +++ b/generic/tclVar.c @@ -2699,7 +2699,8 @@ Tcl_AppendObjCmd(dummy, interp, objc, objv) varValuePtr = TclPtrSetVar(interp, varPtr, arrayPtr, part1, NULL, objv[i], (TCL_APPEND_VALUE | TCL_LEAVE_ERR_MSG)); - if (varValuePtr == NULL) { + if ((varValuePtr == NULL) || + (varValuePtr == ((Interp *) interp)->emptyObjPtr)) { return TCL_ERROR; } } |