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-rw-r--r--generic/tclUtil.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/generic/tclUtil.c b/generic/tclUtil.c
index ce66096..f424381 100644
--- a/generic/tclUtil.c
+++ b/generic/tclUtil.c
@@ -408,8 +408,8 @@ TclMaxListLength(
do {
bytes++;
numBytes -= (numBytes != -1);
- } while (numBytes && TclIsSpaceProc(*bytes));
- if (numBytes == 0) {
+ } while (numBytes && (*bytes != '\0') && TclIsSpaceProc(*bytes));
+ if ((numBytes == 0) || (*bytes == '\0')) {
break;
}
/* (*bytes) is non-space; return to counting state */