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-rw-r--r--libutils/Unicode.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/libutils/Unicode.cpp b/libutils/Unicode.cpp
index fe8887d..378d2a7 100644
--- a/libutils/Unicode.cpp
+++ b/libutils/Unicode.cpp
@@ -342,7 +342,8 @@ void utf16_to_utf8(const char16_t* src, size_t src_len, char* dst)
while (cur_utf16 < end_utf16) {
char32_t utf32;
// surrogate pairs
- if ((*cur_utf16 & 0xFC00) == 0xD800) {
+ if((*cur_utf16 & 0xFC00) == 0xD800 && (cur_utf16 + 1) < end_utf16
+ && (*(cur_utf16 + 1) & 0xFC00) == 0xDC00) {
utf32 = (*cur_utf16++ - 0xD800) << 10;
utf32 |= *cur_utf16++ - 0xDC00;
utf32 += 0x10000;