add stdalign.h

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/include/stdalign.h b/include/stdalign.h
new file mode 100644
index 0000000..bce8f5d
--- /dev/null
+++ b/include/stdalign.h
@@ -0,0 +1,49 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015  Mattias Andrée (maandree@member.fsf.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, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _STDALIGN_H
+#define _STDALIGN_H
+#include <slibc/version.h>
+
+
+
+/**
+ * Specify the alignment of a variable.
+ * 
+ * @param  type  The type whose alignment shall be used.
+ */
+#if __STDC_VERSION__ < 201112L && defined(__GNUC__)
+# define _Alignas(type)  __attribute__((__aligned__(type)))
+#endif
+#define alignas(type)  _Alignas(type)
+
+
+/**
+ * Get the alignment of a type.
+ * 
+ * @param   type  The type.
+ * @return        The alignment of the type.
+ */
+#if __STDC_VERSION__ < 201112L && defined(__GNUC__)
+# define _Alignof(type)  __alignof__(type)
+#endif
+#define alignof(type)  _Alignof(type)
+
+
+
+#endif
+