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 /* A conservative bound on the maximum length of a human-readable string.
  13    The output can be the product of the largest uintmax_t and the largest int,
  14    so add their sizes before converting to a bound on digits.  */
  15 # define LONGEST_HUMAN_READABLE ((sizeof (uintmax_t) + sizeof (int)) \
  16                                  * CHAR_BIT / 3)
  17
  18 # ifndef PARAMS
  19 #  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
  20 #   define PARAMS(Args) Args
  21 #  else
  22 #   define PARAMS(Args) ()
  23 #  endif
  24 # endif
  25
  26 enum human_inexact_style
  27 {
  28   human_floor = -1,
  29   human_round_to_even = 0,
  30   human_ceiling = 1
  31 };
  32
  33 char *human_readable PARAMS ((uintmax_t, char *, int, int));
  34 char *human_readable_inexact PARAMS ((uintmax_t, char *, int, int,
  35                                       enum human_inexact_style));
  36
  37 void human_block_size PARAMS ((char const *, int, int *));
  38
  39 #endif /* HUMAN_H_ */