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Diffstat (limited to 'src/multibyte/wcsrtombs.c')
-rw-r--r--src/multibyte/wcsrtombs.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/src/multibyte/wcsrtombs.c b/src/multibyte/wcsrtombs.c
index 5cf8f3eb..30be415d 100644
--- a/src/multibyte/wcsrtombs.c
+++ b/src/multibyte/wcsrtombs.c
@@ -21,8 +21,13 @@ size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstat
}
return n;
}
- while (n>=4 && **ws) {
- if (**ws >= 0x80u) {
+ while (n>=4) {
+ if (**ws-1u >= 0x7fu) {
+ if (!**ws) {
+ *s = 0;
+ *ws = 0;
+ return N-n;
+ }
l = wcrtomb(s, **ws, 0);
if (!(l+1)) return -1;
s += l;
@@ -33,8 +38,13 @@ size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstat
}
(*ws)++;
}
- while (n && **ws) {
- if (**ws >= 0x80u) {
+ while (n) {
+ if (**ws-1u >= 0x7fu) {
+ if (!**ws) {
+ *s = 0;
+ *ws = 0;
+ return N-n;
+ }
l = wcrtomb(buf, **ws, 0);
if (!(l+1)) return -1;
if (l>n) return N-n;
@@ -47,7 +57,5 @@ size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstat
}
(*ws)++;
}
- if (n) *s = 0;
- *ws = 0;
- return N-n;
+ return N;
}