1 files changed, 29 insertions, 0 deletions
diff --git a/bits.h b/bits.h
new file mode 100644
index 0000000..d4e25bf
--- /dev/null
+++ b/bits.h
@@ -0,0 +1,29 @@
+/*
+ * This file is part of ltrace.
+ * Copyright (C) 2013 Petr Machata, Red Hat Inc.
+ *
+ * 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 St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef BITS_H
+#define BITS_H
+
+#include <stdint.h>
+
+/* Count bits in U that are 1.  */
+unsigned bitcount(uint64_t u);
+
+#endif /* BITS_H */