Avoid shifting negative value

2019-02-17 22:20:50 -08:00
parent 71972a5265
commit 0cb9231720
1 changed files with 1 additions and 1 deletions
--- a/src/common/strconv.cpp
+++ b/src/common/strconv.cpp
@@ -1425,7 +1425,7 @@ size_t wxMBConvUTF8::FromWChar(char *buf, size_t n,
                len += cnt + 1;
                if (buf)
                {
-                    *buf++ = (char) ((-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt)));
+                    *buf++ = (char) ((~0x7fu >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt)));
                    while (cnt--)
                        *buf++ = (char) (0x80 | ((cc >> (cnt * 6)) & 0x3f));
                }