1 files changed, 47 insertions, 0 deletions
diff --git a/newlib/libc/string/wcsxfrm_l.c b/newlib/libc/string/wcsxfrm_l.c
new file mode 100644
index 000000000..c44b0d639
--- /dev/null
+++ b/newlib/libc/string/wcsxfrm_l.c
@@ -0,0 +1,47 @@
+/*
+FUNCTION
+	<<wcsxfrm_l>>---locale-specific wide-character string transformation
+	
+INDEX
+	wcsxfrm_l
+
+ANSI_SYNOPSIS
+	#include <wchar.h>
+	int wcsxfrm_l(wchar_t *__restrict <[stra]>,
+		      const wchar_t *__restrict <[strb]>, size_t <[n]>,
+		      locale_t <[locale]>);
+
+DESCRIPTION
+	<<wcsxfrm_l>> transforms the wide-character string pointed to by
+	<[strb]> to the wide-character string pointed to by <[stra]>,
+	Comparing two transformed wide strings with <<wcscmp>> should return
+	the same result as comparing the original strings with <<wcscoll>>.
+	No more than <[n]> wide characters are transformed, including the
+	trailing null character.
+
+	If <[n]> is 0, <[stra]> may be a NULL pointer.
+
+	If <[locale]> is LC_GLOBAL_LOCALE or not a valid locale object, the
+	behaviour is undefined.
+
+	(NOT Cygwin:) The current implementation of <<wcsxfrm_l>> simply uses
+	<<wcslcpy>> and does not support any language-specific transformations.
+
+RETURNS
+	<<wcsxfrm_l>> returns the length of the transformed wide character
+	string.  if the return value is greater or equal to <[n]>, the
+	content of <[stra]> is undefined.
+
+PORTABILITY
+<<wcsxfrm_l>> is POSIX-1.2008.
+*/
+
+#include <_ansi.h>
+#include <wchar.h>
+
+size_t
+wcsxfrm_l (wchar_t *__restrict a, const wchar_t *__restrict b, size_t n,
+	   struct __locale_t *locale)
+{
+  return wcslcpy (a, b, n);
+}