added u16_wcpncpy().

1 files changed, 27 insertions, 0 deletions

diff --git a/src/u16_wcpncpy.c b/src/u16_wcpncpy.c
new file mode 100644
index 0000000..6ee5d2d
--- /dev/null
+++ b/src/u16_wcpncpy.c
@@ -0,0 +1,27 @@
+/*******************************************************************/
+/*  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_wcpncpy(uint16_t * dst, const uint16_t * src, size_t len)
+{
+	uint16_t * ret;
+	uint16_t * cap;
+	size_t     n;
+
+	cap = &dst[len];
+
+	for (n=len; n && *src; n--)
+		*dst++ = *src++;
+
+	ret = *src ? cap : &dst[len-n];
+
+	for (; dst<cap; )
+		*dst++ = 0;
+
+	return ret;
+}