lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/mlibc/options/ansi/generic/uchar.cpp b/lib/mlibc/options/ansi/generic/uchar.cpp
new file mode 100644
index 0000000..cb13c12
--- /dev/null
+++ b/lib/mlibc/options/ansi/generic/uchar.cpp
@@ -0,0 +1,23 @@
+#include <bits/ensure.h>
+#include <uchar.h>
+#include <wchar.h>
+
+size_t c32rtomb(char *, char32_t, mbstate_t *) MLIBC_STUB_BODY
+
+size_t mbrtoc32(char32_t *__restrict pc32, const char *__restrict pmb, size_t max, mbstate_t *__restrict ps) {
+	static mbstate_t internal_state;
+
+	if(!ps)
+		ps = &internal_state;
+
+	if(!pmb)
+		return mbrtoc32(0, "", 1, ps);
+
+	wchar_t wc;
+	size_t ret = mbrtowc(&wc, pmb, max, ps);
+
+	if (ret <= 4 && pc32)
+		*pc32 = wc;
+
+	return ret;
+}