From 04b6fcdf1b535451939cba300ccf536f0bd939b9 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Nov 25 2017 16:36:09 +0000
Subject: added u16_wcsstr().


---

diff --git a/project/common.mk b/project/common.mk
index d76be98..bd5fdb5 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -18,6 +18,7 @@ API_SRCS = \
 	src/u16_wcsncat.c \
 	src/u16_wcschr.c \
 	src/u16_wcsrchr.c \
+	src/u16_wcsstr.c \
 
 INTERNAL_SRCS = \
 
diff --git a/src/u16_wcsstr.c b/src/u16_wcsstr.c
new file mode 100644
index 0000000..63686b6
--- /dev/null
+++ b/src/u16_wcsstr.c
@@ -0,0 +1,22 @@
+/*******************************************************************/
+/*  u16ports: u16 variants of wide character string functions.     */
+/*  Copyright (C) 2017  Z. Gilboa                                  */
+/*  Released under the Standard MIT License; see COPYING.U16PORTS. */
+/*******************************************************************/
+
+#include <stdint.h>
+#include <u16ports/u16ports.h>
+
+uint16_t * u16_wcsstr(const uint16_t * wstr, const uint16_t * wsub)
+{
+	size_t len;
+
+	if (!(len = u16_wcslen(wsub)))
+		return (uint16_t *)wstr;
+
+	for (; *wstr; wstr++)
+		if (!(u16_wcsncmp(wstr,wsub,len)))
+			return (uint16_t *)wstr;
+
+	return 0;
+}