-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-char * strerror( int errcode ) { /* TODO */ };
+/* $Id$ */
+
+/* strerror( int )
+
+ 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>
+
+#ifndef REGTEST
+
+#include <locale.h>
+
+/* TODO: Doing this via a static array is not the way to do it. */
+char * strerror( int errnum )
+{
+ if ( errnum == 0 || errnum >= _PDCLIB_ERRNO_MAX )
+ {
+ return (char *)"Unknown error";
+ }
+ else
+ {
+ return _PDCLIB_lconv._PDCLIB_errno_texts[errnum];
+ }
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+#include <stdio.h>
+#include <errno.h>
+
+int main( void )
+{
+ TESTCASE( strerror( ERANGE ) != strerror( EDOM ) );
+ return TEST_RESULTS;
+}
+#endif