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 #  define __ZLONG_MAX ULONG_MAX
   9 # else
  10 #  define __xstrtol xstrtol
  11 #  define __strtol strtol
  12 #  define __unsigned /* empty */
  13 #  define __ZLONG_MAX LONG_MAX
  14 # endif
  15
  16 # ifndef PARAMS
  17 #  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
  18 #   define PARAMS(Args) Args
  19 #  else
  20 #   define PARAMS(Args) ()
  21 #  endif
  22 # endif
  23
  24 # ifndef _STRTOL_ERROR
  25 enum strtol_error
  26   {
  27     LONGINT_OK, LONGINT_INVALID, LONGINT_INVALID_SUFFIX_CHAR, LONGINT_OVERFLOW
  28   };
  29 typedef enum strtol_error strtol_error;
  30 # endif
  31
  32 strtol_error
  33   __xstrtol PARAMS ((const char *s, char **ptr, int base,
  34                      __unsigned long int *val, const char *valid_suffixes));
  35
  36 # undef _STRTOL_ERROR
  37 # define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err)       \
  38   do                                                                    \
  39     {                                                                   \
  40       switch ((Err))                                                    \
  41         {                                                               \
  42         case LONGINT_OK:                                                \
  43           abort ();                                                     \
  44                                                                         \
  45         case LONGINT_INVALID:                                           \
  46           error ((Exit_code), 0, "invalid %s `%s'",                     \
  47                  (Argument_type_string), (Str));                        \
  48           break;                                                        \
  49                                                                         \
  50         case LONGINT_INVALID_SUFFIX_CHAR:                               \
  51           error ((Exit_code), 0, "invalid character following %s `%s'", \
  52                  (Argument_type_string), (Str));                        \
  53           break;                                                        \
  54                                                                         \
  55         case LONGINT_OVERFLOW:                                          \
  56           /* FIXME: make this message dependent on STRING_TO_UNSIGNED */\
  57           error ((Exit_code), 0, "%s `%s' larger than maximum long int",\
  58                  (Argument_type_string), (Str));                        \
  59           break;                                                        \
  60         }                                                               \
  61     }                                                                   \
  62   while (0)
  63
  64 # define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err)             \
  65   _STRTOL_ERROR (2, Str, Argument_type_string, Err)
  66
  67 # define STRTOL_FAIL_WARN(Str, Argument_type_string, Err)               \
  68   _STRTOL_ERROR (0, Str, Argument_type_string, Err)
  69
  70 #endif /* not XSTRTOL_H_ */