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-rw-r--r--generic/tclEncoding.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/generic/tclEncoding.c b/generic/tclEncoding.c
index a326856..0d03e2a 100644
--- a/generic/tclEncoding.c
+++ b/generic/tclEncoding.c
@@ -2413,7 +2413,7 @@ UtfToUtfProc(
/* A surrogate character is detected, handle especially */
Tcl_UniChar low = *chPtr;
size_t len = (src <= srcEnd-3) ? Tcl_UtfToUniChar(src, &low) : 0;
- if (((low | 0x3FF) != 0xDFFF) || !(*chPtr & 0x800)) {
+ if (((low | 0x3FF) != 0xDFFF) || (*chPtr & 0x400)) {
*dst++ = (char) (((*chPtr >> 12) | 0xE0) & 0xEF);
*dst++ = (char) (((*chPtr >> 6) | 0x80) & 0xBF);
*dst++ = (char) ((*chPtr | 0x80) & 0xBF);