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 # undef PARAMS
  17 # if defined (__STDC__) && __STDC__
  18 #  define PARAMS(Args) Args
  19 # else
  20 #  define PARAMS(Args) ()
  21 # endif
  22
  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
  29 strtol_error
  30   __xstrtol PARAMS ((const char *s, char **ptr, int base,
  31                      __unsigned long int *val, const char *valid_suffixes));
  32
  33 # define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err)       \
  34   do                                                                    \
  35     {                                                                   \
  36       switch ((Err))                                                    \
  37         {                                                               \
  38         case LONGINT_OK:                                                \
  39           abort ();                                                     \
  40                                                                         \
  41         case LONGINT_INVALID:                                           \
  42           error ((Exit_code), 0, "invalid %s `%s'",                     \
  43                  (Argument_type_string), (Str));                        \
  44           break;                                                        \
  45                                                                         \
  46         case LONGINT_INVALID_SUFFIX_CHAR:                               \
  47           error ((Exit_code), 0, "invalid character following %s `%s'", \
  48                  (Argument_type_string), (Str));                        \
  49           break;                                                        \
  50                                                                         \
  51         case LONGINT_OVERFLOW:                                          \
  52           /* FIXME: make this message dependent on STRING_TO_UNSIGNED */\
  53           error ((Exit_code), 0, "%s `%s' larger than maximum long int",\
  54                  (Argument_type_string), (Str));                        \
  55           break;                                                        \
  56         }                                                               \
  57     }                                                                   \
  58   while (0)
  59
  60 # define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err)             \
  61   _STRTOL_ERROR (2, Str, Argument_type_string, Err)
  62
  63 # define STRTOL_FAIL_WARN(Str, Argument_type_string, Err)               \
  64   _STRTOL_ERROR (0, Str, Argument_type_string, Err)
  65
  66 #endif /* _xstrtol_h_ */