lib/xstrtol.h

   1 #ifndef XSTRTOL_H_
   2 # define XSTRTOL_H_ 1
   3
   4 # if STRING_TO_UNSIGNED
   5 #  define __xstrtol xstrtoul
   6 #  define __strtol strtoul
   7 #  define __unsigned unsigned
   8 # else
   9 #  define __xstrtol xstrtol
  10 #  define __strtol strtol
  11 #  define __unsigned /* empty */
  12 # endif
  13
  14 # ifndef PARAMS
  15 #  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
  16 #   define PARAMS(Args) Args
  17 #  else
  18 #   define PARAMS(Args) ()
  19 #  endif
  20 # endif
  21
  22 # ifndef _STRTOL_ERROR
  23 enum strtol_error
  24   {
  25     LONGINT_OK, LONGINT_INVALID, LONGINT_INVALID_SUFFIX_CHAR, LONGINT_OVERFLOW
  26   };
  27 typedef enum strtol_error strtol_error;
  28 # endif
  29
  30 strtol_error
  31   __xstrtol PARAMS ((const char *s, char **ptr, int base,
  32                      __unsigned long int *val, const char *valid_suffixes));
  33
  34 # undef _STRTOL_ERROR
  35 # define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err)       \
  36   do                                                                    \
  37     {                                                                   \
  38       switch ((Err))                                                    \
  39         {                                                               \
  40         case LONGINT_OK:                                                \
  41           abort ();                                                     \
  42                                                                         \
  43         case LONGINT_INVALID:                                           \
  44           error ((Exit_code), 0, "invalid %s `%s'",                     \
  45                  (Argument_type_string), (Str));                        \
  46           break;                                                        \
  47                                                                         \
  48         case LONGINT_INVALID_SUFFIX_CHAR:                               \
  49           error ((Exit_code), 0, "invalid character following %s `%s'", \
  50                  (Argument_type_string), (Str));                        \
  51           break;                                                        \
  52                                                                         \
  53         case LONGINT_OVERFLOW:                                          \
  54           /* FIXME: make this message dependent on STRING_TO_UNSIGNED */\
  55           error ((Exit_code), 0, "%s `%s' larger than maximum long int",\
  56                  (Argument_type_string), (Str));                        \
  57           break;                                                        \
  58         }                                                               \
  59     }                                                                   \
  60   while (0)
  61
  62 # define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err)             \
  63   _STRTOL_ERROR (2, Str, Argument_type_string, Err)
  64
  65 # define STRTOL_FAIL_WARN(Str, Argument_type_string, Err)               \
  66   _STRTOL_ERROR (0, Str, Argument_type_string, Err)
  67
  68 #endif /* not XSTRTOL_H_ */