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 5b0fabb3fa75ffe354a3cb516d8c7e936cdfc50d..5849a0cb80ea52a44883c0ed1d7837125f97340a 100644 (file)
--- a/functions/string/strxfrm.c
+++ b/functions/string/strxfrm.c
@@ -1,23 +1,29 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
+/* $Id$ */
 
-#include <__size_t.h>
+/* Release $Name$ */
 
-// TODO: Dummy function, no locale support yet.
+/* strxfrm( char *, const char *, size_t )
 
-size_t strlen( const char * src );
-char * strncpy( char * restrict dest, const char * restrict src, size_t n );
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
 
-size_t strxfrm( char * restrict dest, const char * restrict src, size_t n )
+#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( src );
+    size_t len = strlen( s2 );
     if ( len < n )
     {
-        strncpy( dest, src, len );
+        /* 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.