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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 | c9f66dbf6b645b55ac34057fbf04253874ff26a5 (patch) | |
| tree | 13523f8aaf8376791660f1b2b620a68cf75c470a /generic | |
| parent | b1952397aecf52090cdaec38a468370a1625db2d (diff) | |
| download | tcl-c9f66dbf6b645b55ac34057fbf04253874ff26a5.zip tcl-c9f66dbf6b645b55ac34057fbf04253874ff26a5.tar.gz tcl-c9f66dbf6b645b55ac34057fbf04253874ff26a5.tar.bz2 | |
fix for [Bug 2662380], crash caused by appending to a variable with a write trace that unsets it
Diffstat (limited to 'generic')
| -rw-r--r-- | generic/tclVar.c | 3 |
1 files changed, 2 insertions, 1 deletions
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; } } |