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-rw-r--r--project/common.mk1
-rw-r--r--src/u16_wcsstr.c22
2 files changed, 23 insertions, 0 deletions
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;
+}