Added some of <string.h>.

[pdclib] / functions / string / strxfrm.c

diff --git a/functions/string/strxfrm.c b/functions/string/strxfrm.c
new file mode 100644 (file)
index 0000000..60575cb
--- /dev/null
+++ b/functions/string/strxfrm.c
@@ -0,0 +1,26 @@
+/* $Id$ */
+
+/* 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 <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;
+}