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

   1 #ifndef XSTRTOL_H_
   2 # define XSTRTOL_H_ 1
   3
   4 # if HAVE_INTTYPES_H
   5 #  include <inttypes.h> /* for uintmax_t */
   6 # endif
   7
   8 # ifndef PARAMS
   9 #  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
  10 #   define PARAMS(Args) Args
  11 #  else
  12 #   define PARAMS(Args) ()
  13 #  endif
  14 # endif
  15
  16 # ifndef _STRTOL_ERROR
  17 enum strtol_error
  18   {
  19     LONGINT_OK, LONGINT_INVALID, LONGINT_INVALID_SUFFIX_CHAR, LONGINT_OVERFLOW
  20   };
  21 typedef enum strtol_error strtol_error;
  22 # endif
  23
  24 # define _DECLARE_XSTRTOL(name, type) \
  25   strtol_error \
  26     name PARAMS ((const char *s, char **ptr, int base, \
  27                   type *val, const char *valid_suffixes));
  28 _DECLARE_XSTRTOL (xstrtol, long int)
  29 _DECLARE_XSTRTOL (xstrtoul, unsigned long int)
  30 _DECLARE_XSTRTOL (xstrtoumax, uintmax_t)
  31
  32 # define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err)       \
  33   do                                                                    \
  34     {                                                                   \
  35       switch ((Err))                                                    \
  36         {                                                               \
  37         case LONGINT_OK:                                                \
  38           abort ();                                                     \
  39                                                                         \
  40         case LONGINT_INVALID:                                           \
  41           error ((Exit_code), 0, "invalid %s `%s'",                     \
  42                  (Argument_type_string), (Str));                        \
  43           break;                                                        \
  44                                                                         \
  45         case LONGINT_INVALID_SUFFIX_CHAR:                               \
  46           error ((Exit_code), 0, "invalid character following %s `%s'", \
  47                  (Argument_type_string), (Str));                        \
  48           break;                                                        \
  49                                                                         \
  50         case LONGINT_OVERFLOW:                                          \
  51           error ((Exit_code), 0, "%s `%s' too large",                   \
  52                  (Argument_type_string), (Str));                        \
  53           break;                                                        \
  54         }                                                               \
  55     }                                                                   \
  56   while (0)
  57
  58 # define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err)             \
  59   _STRTOL_ERROR (2, Str, Argument_type_string, Err)
  60
  61 # define STRTOL_FAIL_WARN(Str, Argument_type_string, Err)               \
  62   _STRTOL_ERROR (0, Str, Argument_type_string, Err)
  63
  64 #endif /* not XSTRTOL_H_ */