Dogcows Code - chaz/tar/blob - lib/human.h

   1 #ifndef HUMAN_H_
   2 # define HUMAN_H_ 1
   3
   4 # if HAVE_CONFIG_H
   5 #  include <config.h>
   6 # endif
   7
   8 # if HAVE_INTTYPES_H
   9 #  include <inttypes.h>
  10 # endif
  11
  12 # if HAVE_LIMITS_H
  13 #  include <limits.h>
  14 # endif
  15 # ifndef CHAR_BIT
  16 #  define CHAR_BIT 8
  17 # endif
  18
  19 /* A conservative bound on the maximum length of a human-readable string.
  20    The output can be the product of the largest uintmax_t and the largest int,
  21    so add their sizes before converting to a bound on digits.  */
  22 # define LONGEST_HUMAN_READABLE ((sizeof (uintmax_t) + sizeof (int)) \
  23                                  * CHAR_BIT / 3)
  24
  25 # ifndef PARAMS
  26 #  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
  27 #   define PARAMS(Args) Args
  28 #  else
  29 #   define PARAMS(Args) ()
  30 #  endif
  31 # endif
  32
  33 enum human_inexact_style
  34 {
  35   human_floor = -1,
  36   human_round_to_even = 0,
  37   human_ceiling = 1
  38 };
  39
  40 char *human_readable PARAMS ((uintmax_t, char *, int, int));
  41 char *human_readable_inexact PARAMS ((uintmax_t, char *, int, int,
  42                                       enum human_inexact_style));
  43
  44 void human_block_size PARAMS ((char const *, int, int *));
  45
  46 #endif /* HUMAN_H_ */