/* human.h -- print human readable file size
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
- Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+ 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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.
+ 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
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Paul Eggert and Larry McVoy. */
#ifndef HUMAN_H_
# define HUMAN_H_ 1
-# if HAVE_CONFIG_H
-# include <config.h>
-# endif
-
# include <limits.h>
# include <stdbool.h>
+# include <stdint.h>
+# include <unistd.h>
-# if HAVE_STDINT_H
-# include <stdint.h>
-# endif
-# if HAVE_UNISTD_H
-# include <unistd.h>
-# endif
+# include <xstrtol.h>
/* A conservative bound on the maximum length of a human-readable string.
The output can be the square of the largest uintmax_t, so double
its size before converting to a bound.
- 302 / 1000 is ceil (log10 (2.0)). Add 1 for integer division truncation.
+ log10 (2.0) < 146/485. Add 1 for integer division truncation.
Also, the output can have a thousands separator between every digit,
so multiply by MB_LEN_MAX + 1 and then subtract MB_LEN_MAX.
+ Append 1 for a space before the suffix.
Finally, append 3, the maximum length of a suffix. */
# define LONGEST_HUMAN_READABLE \
- ((2 * sizeof (uintmax_t) * CHAR_BIT * 302 / 1000 + 1) * (MB_LEN_MAX + 1) \
- - MB_LEN_MAX + 3)
+ ((2 * sizeof (uintmax_t) * CHAR_BIT * 146 / 485 + 1) * (MB_LEN_MAX + 1) \
+ - MB_LEN_MAX + 1 + 3)
/* Options for human_readable. */
enum
/* Prefer base 1024 to base 1000. */
human_base_1024 = 32,
+ /* Prepend " " before unit symbol. */
+ human_space_before_unit = 64,
+
/* Append SI prefix, e.g. "k" or "M". */
- human_SI = 64,
+ human_SI = 128,
/* Append "B" (if base 1000) or "iB" (if base 1024) to SI prefix. */
- human_B = 128
+ human_B = 256
};
char *human_readable (uintmax_t, char *, int, uintmax_t, uintmax_t);
-int human_options (char const *, bool, uintmax_t *);
+enum strtol_error human_options (char const *, int *, uintmax_t *);
#endif /* HUMAN_H_ */