diff options
Diffstat (limited to 'generic/tclStringObj.c')
| -rw-r--r-- | generic/tclStringObj.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c index 2e42e98..3e1df0b 100644 --- a/generic/tclStringObj.c +++ b/generic/tclStringObj.c @@ -578,6 +578,9 @@ Tcl_GetUniChar( if (stringPtr->numChars == TCL_INDEX_NONE) { TclNumUtfCharsM(stringPtr->numChars, objPtr->bytes, objPtr->length); } + if (index >= stringPtr->numChars) { + return -1; + } if (stringPtr->numChars == objPtr->length) { return (unsigned char) objPtr->bytes[index]; } |