typedef ptrdiff_t intgo;

#define GO_CGO_GOSTRING_TYPEDEF
typedef struct { const char *p; intgo n; } _GoString_;
typedef struct { char *p; intgo n; intgo c; } _GoBytes_;
_GoString_ GoString(char *p);
_GoString_ GoStringN(char *p, int l);
_GoBytes_ GoBytes(void *p, int n);
char *CString(_GoString_);
void *CBytes(_GoBytes_);
void *_CMalloc(size_t);

__attribute__ ((unused))

  }

  private static CharMatcher.IsEither isEither(char c1, char c2) {
    return new CharMatcher.IsEither(c1, c2);
  }

  /** Implementation of {@link #anyOf(CharSequence)} for exactly two characters. */
  private static final class IsEither extends FastMatcher {

    private final char match1;
    private final char match2;

    IsEither(char match1, char match2) {
      this.match1 = match1;

  }

  private static CharMatcher.IsEither isEither(char c1, char c2) {
    return new CharMatcher.IsEither(c1, c2);
  }

  /** Implementation of {@link #anyOf(CharSequence)} for exactly two characters. */
  private static final class IsEither extends FastMatcher {

    private final char match1;
    private final char match2;

    IsEither(char match1, char match2) {
      this.match1 = match1;

	char*		s;
	char*		ans;
	char*		msg;
	char*		fun;
	char*		ppat;
	char*		subunit;
	char*		version;
	char*		field[6];
	char*		delim[6];
	FILE*		fp;
	int		tabs[6];
	char		unit[64];
	regmatch_t	match[100];
	regex_t		preg;

	static char	pat[32 * 1024];
	static char	patbuf[32 * 1024];
	static char	strbuf[32 * 1024];

	int		nonosub = REG_NOSUB == 0;
	int		nonexec = 0;

                                          const char* attr_name,
                                          unsigned char value);
TF_CAPI_EXPORT extern void TF_SetAttrBoolList(TF_OperationDescription* desc,
                                              const char* attr_name,
                                              const unsigned char* values,
                                              int num_values);

    for (const auto& s : list) {
      list_total_size += s.size();
    }

    TF_Status* status = TF_NewStatus();
    std::unique_ptr<char*[]> values(new char*[list.size()]);
    std::unique_ptr<size_t[]> lens(new size_t[list.size()]);
    std::unique_ptr<char[]> storage(new char[list_total_size]);
    EXPECT_TF_SIZE(/*attr_name*/ "Attr", /*expected_list_size*/ list.size(),
                   /*expected_total_size*/ list_total_size);

GTEST_API_ AssertionResult IsSubstring(
    const char* needle_expr, const char* haystack_expr,
    const char* needle, const char* haystack);
GTEST_API_ AssertionResult IsSubstring(
    const char* needle_expr, const char* haystack_expr,
    const wchar_t* needle, const wchar_t* haystack);
GTEST_API_ AssertionResult IsNotSubstring(
    const char* needle_expr, const char* haystack_expr,
    const char* needle, const char* haystack);

GTEST_API_ AssertionResult IsSubstring(
    const char* needle_expr, const char* haystack_expr,
    const char* needle, const char* haystack);
GTEST_API_ AssertionResult IsSubstring(
    const char* needle_expr, const char* haystack_expr,
    const wchar_t* needle, const wchar_t* haystack);
GTEST_API_ AssertionResult IsNotSubstring(
    const char* needle_expr, const char* haystack_expr,
    const char* needle, const char* haystack);

  return isxdigit(static_cast<unsigned char>(ch)) != 0;
}
inline bool IsXDigit(wchar_t ch) {
  const unsigned char low_byte = static_cast<unsigned char>(ch);
  return ch == low_byte && isxdigit(low_byte) != 0;
}

inline char ToLower(char ch) {
  return static_cast<char>(tolower(static_cast<unsigned char>(ch)));
}
inline char ToUpper(char ch) {

  return isxdigit(static_cast<unsigned char>(ch)) != 0;
}
inline bool IsXDigit(wchar_t ch) {
  const unsigned char low_byte = static_cast<unsigned char>(ch);
  return ch == low_byte && isxdigit(low_byte) != 0;
}

inline char ToLower(char ch) {
  return static_cast<char>(tolower(static_cast<unsigned char>(ch)));
}
inline char ToUpper(char ch) {