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-rw-r--r--generic/tclUtil.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/generic/tclUtil.c b/generic/tclUtil.c
index 5f4cdae..8c6adfe 100644
--- a/generic/tclUtil.c
+++ b/generic/tclUtil.c
@@ -2334,7 +2334,7 @@ TclStringMatchObj(
udata = Tcl_GetUnicodeFromObj(strObj, &length);
uptn = Tcl_GetUnicodeFromObj(ptnObj, &plen);
match = TclUniCharMatch(udata, length, uptn, plen, flags);
- } else if ((strObj->typePtr == &tclByteArrayType) && !flags) {
+ } else if (TclIsPureByteArray(strObj) && !flags) {
unsigned char *data, *ptn;
data = Tcl_GetByteArrayFromObj(strObj, &length);