1 files changed, 33 insertions, 0 deletions
diff --git a/src/stdlib/mblen.c b/src/stdlib/mblen.c
new file mode 100644
index 00000000..db7c4f1c
--- /dev/null
+++ b/src/stdlib/mblen.c
@@ -0,0 +1,33 @@
+#include <stdlib.h>
+
+/** count bytes in multibyte character **/
+int mblen(const char * s, size_t n)
+{
+	/* FIXME: forward dependency on AMD1 */
+	#if 0
+	mbstate_t ps = 0;
+	return mbrlen(s, n, &ps);
+	#else
+	(void)s; (void)n;
+	return 0;
+	#endif
+}
+
+/***
+counts the number of bytes in the multibyte character
+starting at ARGUMENT(s), if the next ARGUMENT(n) or fewer bytes contain a full multibyte
+character.
+
+If ARGUMENT(s) is CONSTANT(NULL), THIS() tests whether multibyte encodings carry
+state dependency.
+***/
+
+/*
+LC_CTYPE
+RETURN(0, If ARGUMENT(s) is CONSTANT(NULL), multibyte encodings do not have state dependencies);
+RETURN(NZ, If ARGUMENT(s) is CONSTANT(NULL), multibyte encodings do have state dependencies);
+RETURN(-1, The ARGUMENT(n) bytes at ARGUMENT(s) do not form a valid mutlibyte character);
+RETURN(0, ARGUMENT(s) points to a null character);
+RETURN(TYPE(int), the number of bytes in the multibyte character);
+STDC(1)
+*/