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 __P
  17 #if defined (__STDC__) && __STDC__
  18 #define __P(x) x
  19 #else
  20 #define __P(x) ()
  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 __P ((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_ */