X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=utils%2Fpow2.h;fp=utils%2Fpow2.h;h=3927e84c6966ef1221952466461c2b82c877849d;hp=0000000000000000000000000000000000000000;hb=4361b69d3178d7fc98d0388f9a223af6c2651aba;hpb=d6b0217f2417bd19187f0ebc389d6c5c2233b11c

diff --git a/utils/pow2.h b/utils/pow2.h
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+++ b/utils/pow2.h
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+/* pow2, Copyright (c) 2016 Dave Odell <dmo2118@gmail.com>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation.  No representations are made about the suitability of this
+ * software for any purpose.  It is provided "as is" without express or
+ * implied warranty.
+ */
+
+#ifndef POW2_H
+#define POW2_H
+
+#include <stdlib.h>
+
+extern int i_log2(size_t x);
+extern size_t to_pow2 (size_t x); /* return the next larger power of 2. */
+
+#endif /* POW2_H */