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xstrtol.h

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#ifndef XSTRTOL_H_
# define XSTRTOL_H_ 1

# if HAVE_INTTYPES_H
#  include <inttypes.h> /* for uintmax_t */
# endif

# ifndef PARAMS
#  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
#   define PARAMS(Args) Args
#  else
#   define PARAMS(Args) ()
#  endif
# endif

# ifndef _STRTOL_ERROR
enum strtol_error
  {
    LONGINT_OK, LONGINT_INVALID, LONGINT_INVALID_SUFFIX_CHAR, LONGINT_OVERFLOW
  };
typedef enum strtol_error strtol_error;
# endif

# define _DECLARE_XSTRTOL(name, type) \
  strtol_error \
    name PARAMS ((const char *s, char **ptr, int base, \
        type *val, const char *valid_suffixes));
_DECLARE_XSTRTOL (xstrtol, long int)
_DECLARE_XSTRTOL (xstrtoul, unsigned long int)
_DECLARE_XSTRTOL (xstrtoumax, uintmax_t)

# define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err) \
  do                          \
    {                         \
      switch ((Err))                   \
   {                       \
   case LONGINT_OK:                 \
     abort ();                   \
                           \
   case LONGINT_INVALID:                  \
     error ((Exit_code), 0, "invalid %s `%s'",        \
       (Argument_type_string), (Str));       \
     break;                   \
                           \
   case LONGINT_INVALID_SUFFIX_CHAR:            \
     error ((Exit_code), 0, "invalid character following %s `%s'",   \
       (Argument_type_string), (Str));       \
     break;                   \
                           \
   case LONGINT_OVERFLOW:                 \
     error ((Exit_code), 0, "%s `%s' too large",         \
       (Argument_type_string), (Str));       \
     break;                   \
   }                       \
    }                         \
  while (0)

# define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err)    \
  _STRTOL_ERROR (2, Str, Argument_type_string, Err)

# define STRTOL_FAIL_WARN(Str, Argument_type_string, Err)      \
  _STRTOL_ERROR (0, Str, Argument_type_string, Err)

#endif /* not XSTRTOL_H_ */

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