Match glibc behavior.
* libc/stdlib/stdlib.c (mbtowc): Fix end of string behavior.
Signed-off-by: Mickaël Guêné <mickael.gu...@st.com>
Signed-off-by: Christophe Lyon <christophe.l...@st.com>
diff --git a/libc/stdlib/stdlib.c b/libc/stdlib/stdlib.c
index 075e6e5..f593663 100644
--- a/libc/stdlib/stdlib.c
+++ b/libc/stdlib/stdlib.c
@@ -895,9 +895,13 @@ int mbtowc(wchar_t *__restrict pwc, register const char
*__restrict s, size_t n)
return is_stateful(ENCODING);
}
- if (*s == '\0')
+ if (*s == '\0') {
/* According to the ISO C 89 standard this is the expected
behaviour. */
+ /* Standard not very clear here, so do like glibc. */
+ if (pwc != NULL)
+ *pwc = L'\0';
return 0;
+ }
if ((r = mbrtowc(pwc, s, n, &state)) == (size_t) -2) {
/* TODO: Should we set an error state? */
--
2.6.3
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