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-rw-r--r--src/multibyte/c16rtomb.c2
-rw-r--r--src/multibyte/mbrtoc16.c2
-rw-r--r--src/multibyte/mbrtoc32.c2
3 files changed, 6 insertions, 0 deletions
diff --git a/src/multibyte/c16rtomb.c b/src/multibyte/c16rtomb.c
index 2e8ec970..39ca3758 100644
--- a/src/multibyte/c16rtomb.c
+++ b/src/multibyte/c16rtomb.c
@@ -4,6 +4,8 @@
size_t c16rtomb(char *restrict s, char16_t c16, mbstate_t *restrict ps)
{
+ static unsigned internal_state;
+ if (!ps) ps = (void *)&internal_state;
unsigned *x = (unsigned *)ps;
wchar_t wc;
diff --git a/src/multibyte/mbrtoc16.c b/src/multibyte/mbrtoc16.c
index 74b7d77e..765ff903 100644
--- a/src/multibyte/mbrtoc16.c
+++ b/src/multibyte/mbrtoc16.c
@@ -3,6 +3,8 @@
size_t mbrtoc16(char16_t *restrict pc16, const char *restrict s, size_t n, mbstate_t *restrict ps)
{
+ static unsigned internal_state;
+ if (!ps) ps = (void *)&internal_state;
unsigned *pending = (unsigned *)ps;
if (!s) return mbrtoc16(0, "", 1, ps);
diff --git a/src/multibyte/mbrtoc32.c b/src/multibyte/mbrtoc32.c
index c6d20824..9b6b2367 100644
--- a/src/multibyte/mbrtoc32.c
+++ b/src/multibyte/mbrtoc32.c
@@ -3,6 +3,8 @@
size_t mbrtoc32(char32_t *restrict pc32, const char *restrict s, size_t n, mbstate_t *restrict ps)
{
+ static unsigned internal_state;
+ if (!ps) ps = (void *)&internal_state;
if (!s) return mbrtoc32(0, "", 1, ps);
wchar_t wc;
size_t ret = mbrtowc(&wc, s, n, ps);