fs/DirectoryReader: use C++ exceptions instead of class Error

src/fs/DirectoryReader.cxx

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2003-2015 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "DirectoryReader.hxx"
+#include "system/Error.hxx"
+
+#ifdef WIN32
+
+DirectoryReader::DirectoryReader(Path dir)
+	:handle(FindFirstFile(MakeWildcardPath(dir.c_str()), &data))
+{
+	if (handle == INVALID_HANDLE_VALUE)
+		throw FormatLastError("Failed to open %s", dir.c_str());
+}
+
+#else
+
+DirectoryReader::DirectoryReader(Path dir)
+	:dirp(opendir(dir.c_str()))
+{
+	if (dirp == nullptr)
+		throw FormatErrno("Failed to open %s", dir.c_str());
+}
+
+#endif