Permite expandir cálculo para outros anos.

[cascardo/declara.git] / lib / ano.h

diff --git a/lib/ano.h b/lib/ano.h
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+/*
+ *  Copyright (C) 2016  Thadeu Lima de Souza Cascardo <cascardo@minaslivre.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 3 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.
+ */
+
+#ifndef _ANO_H
+#define _ANO_H
+
+#define PRIMEIRO_ANO 2015
+#define ULTIMO_ANO 2015
+#define MAX_ANOS (ULTIMO_ANO + 1)
+#define ANO(ano) (ano - PRIMEIRO_ANO)
+#define ANO_VALIDO(ano) (ANO(ano) >= 0 && ANO(ano) < ANO(MAX_ANOS))
+
+#endif