Added Makefile and moved internal headers into seperate directory (allowing easier...

[pdclib] / functions / string / strxfrm.c

diff --git a/functions/string/strxfrm.c b/functions/string/strxfrm.c
index 6f8a59e9af966ea11ba89894fe96c3d6daafdc89..5849a0cb80ea52a44883c0ed1d7837125f97340a 100644 (file)
--- a/functions/string/strxfrm.c
+++ b/functions/string/strxfrm.c
@@ -1,8 +1,29 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-size_t strxfrm( char * restrict s1, const char * restrict s2, size_t n ) { /* TODO */ };
+/* $Id$ */
+
+/* Release $Name$ */
+
+/* strxfrm( char *, const char *, size_t )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <_PDCLIB_aux.h>
+#include <string.h>
+
+/* TODO: Dummy function, no locale support yet. */
+
+size_t strxfrm( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, size_t n )
+{
+    size_t len = strlen( s2 );
+    if ( len < n )
+    {
+        /* Cannot use strncpy() here as the filling of s1 with '\0' is not part
+           of the spec.
+        */
+        while ( n-- && ( *s1++ = *s2++ ) );
+    }
+    return len;
+}
+
+#warning Test driver missing.