1 files changed, 31 insertions, 0 deletions
diff --git a/src/stdio/fprintf_s.c b/src/stdio/fprintf_s.c
new file mode 100644
index 00000000..b633dee8
--- /dev/null
+++ b/src/stdio/fprintf_s.c
@@ -0,0 +1,31 @@
+#include "stdio.h"
+#include "stdarg.h"
+
+/** write formatted output to a file stream **/
+int fprintf_s(FILE * restrict stream, const char * restrict format, ...)
+{
+	__C_EXT(1, 201112L);
+	int retval;
+	va_list ap;
+	va_start(ap, format);
+	retval = vfprintf_s(stream, format, ap);
+	va_end(ap);
+	return retval;
+}
+
+/***
+The fn(fprintf) function writes a formatted string to arg(stream). The format
+of arg(format) and the variadic arguments is the same as that for fn(printf).
+***/
+
+/* UNSPECIFIED: ??? */
+/* UNDEFINED: ??? */
+/* IMPLEMENTATION: ??? */
+/* LOCALE: ??? */
+
+/* RETURN(NEG): an error occurred */
+/* RETURN: the number of characters written */
+
+/*
+CEXT1(201112)
+*/