diff options
Diffstat (limited to 'generic/tclEncoding.c')
| -rw-r--r-- | generic/tclEncoding.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/generic/tclEncoding.c b/generic/tclEncoding.c index 00b97f5..9e1d262 100644 --- a/generic/tclEncoding.c +++ b/generic/tclEncoding.c @@ -2365,7 +2365,7 @@ UtfToUtfProc( if ((*chPtr & 0xFC00) == 0xD800) { /* A high surrogate character is detected, handle especially */ Tcl_UniChar low = *chPtr; - size_t len = Tcl_UtfToUniChar(src, &low); + size_t len = (src <= srcEnd-3) ? Tcl_UtfToUniChar(src, &low) : 0; if ((low & 0xFC00) != 0xDC00) { *dst++ = (char) (((*chPtr >> 12) | 0xE0) & 0xEF); *dst++ = (char) (((*chPtr >> 6) | 0x80) & 0xBF); |