1 files changed, 32 insertions, 0 deletions
diff --git a/src/stdlib/wctomb_s.c b/src/stdlib/wctomb_s.c
new file mode 100644
index 00000000..0a3f510e
--- /dev/null
+++ b/src/stdlib/wctomb_s.c
@@ -0,0 +1,32 @@
+#include "stdlib.h"
+
+/** convert wide character to multibyte character **/
+errno_t wctomb_s(int * restrict status, char * restrict s, rsize_t smax, wchar_t wc)
+{
+	__C_EXT(1, 201112L);
+	/* TODO */
+	return 0;
+}
+
+/***
+The fn(wctomb) function converts the wide character arg(wchar) to a multibyte
+character, which is stored at the address arg(s). At most macro(MB_CUR_MAX)
+bytes are stored.
+
+If arg(s) is macro(NULL), fn(wctomb) tests whether multibyte encodings carry
+state dependency.
+***/
+
+/* UNSPECIFIED: - */
+/* UNDEFINED: - */
+/* IMPLEMENTATION: - */
+/* LOCALE: LC_CTYPE */
+
+/* RETURN(0): if arg(s) is macro(NULL), multibyte encodings do not have state dependencies */
+/* RETURN(NZ): if arg(s) is macro(NULL), multibyte encodings do have state dependencies */
+/* RETURN(-1): the value of arg(wchar) does not correspond to a valid multibyte character */
+/* RETURN: the number of bytes contained in the multibyte character corresponding to arg(wchar) */
+
+/*
+CEXT1(201112)
+*/