summaryrefslogtreecommitdiff
path: root/src/arith.h
diff options
context:
space:
mode:
authorSehong Na <sehong.na@samsung.com>2014-05-31 13:01:21 +0900
committerSehong Na <sehong.na@samsung.com>2014-05-31 13:01:21 +0900
commitefcfd8bb8b594f96b92c8535629fcc82316d1764 (patch)
treef9367dce846e6e5fe80ced73c26b9c94e28be071 /src/arith.h
downloadtar-efcfd8bb8b594f96b92c8535629fcc82316d1764.tar.gz
tar-efcfd8bb8b594f96b92c8535629fcc82316d1764.tar.bz2
tar-efcfd8bb8b594f96b92c8535629fcc82316d1764.zip
Diffstat (limited to 'src/arith.h')
-rw-r--r--src/arith.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/arith.h b/src/arith.h
new file mode 100644
index 0000000..2bc5ced
--- /dev/null
+++ b/src/arith.h
@@ -0,0 +1,27 @@
+/* Long integers, for GNU tar.
+ Copyright 1999 Free Software Foundation, 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, 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. */
+
+/* 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;