tar-1.29HEADtar-1.29master

1 files changed, 28 insertions, 0 deletions

diff --git a/src/arith.h b/src/arith.h
new file mode 100644
index 0000000..ed930ac
--- /dev/null
+++ b/src/arith.h
@@ -0,0 +1,28 @@
+/* Long integers, for GNU tar.
+   Copyright 1999, 2007, 2013-2014, 2016 Free Software Foundation, Inc.
+
+   This file is part of GNU tar.
+
+   GNU tar 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.
+
+   GNU tar 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/>.  */
+
+/* Handle large integers for calculating big tape lengths and the
+   like.  In practice, double precision does for now.  On the vast
+   majority of machines, it counts up to 2**52 bytes without any loss
+   of information, and counts up to 2**62 bytes if data are always
+   blocked in 1 kB boundaries.  We'll need arbitrary precision
+   arithmetic anyway once we get into the 2**64 range, so there's no
+   point doing anything fancy before then.  */
+
+#define TARLONG_FORMAT "%.0f"
+typedef double tarlong;