KeywordHash Class Reference

Static Public Member Functions
static const char *	find (const char *str, size_t len)

Static Private Member Functions
static size_t	hash (const char *str, size_t len)

Detailed Description

Definition at line 694 of file defargs.l.

Member Function Documentation

find()

const char * KeywordHash::find ( const char * str, size_t len )

static

Definition at line 749 of file defargs.l.

{
  static const char * const wordlist[] =
  {
    "", "", "",
    "int",
    "bool",
    "float",
    "signed",
    "",
    "volatile",
    "char",
    "short",
    "double",
    "wchar_t",
    "uint16_t",
    "long",
    "const",
    "int8_t",
    "uint8_t",
    "char16_t",
    "void",
    "", "",
    "char8_t",
    "intptr_t",
    "uintptr_t",
    "", "", "",
    "intmax_t",
    "uintmax_t",
    "", "",
    "int64_t",
    "uint64_t",
    "", "", "",
    "int16_t",
    "uint32_t",
    "", "", "",
    "int32_t",
    "char32_t",
    "", "", "", "",
    "unsigned"
  };
 
  if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
  {
    size_t key = hash (str, len);
 
    if (key <= MAX_HASH_VALUE)
    {
      const char *s = wordlist[key];
 
      if (*str == *s && !dstrcmp (str + 1, s + 1))
        return s;
    }
  }
  return nullptr;
}

References dstrcmp(), hash(), MAX_HASH_VALUE, and MIN_WORD_LENGTH.

Referenced by nameIsActuallyPartOfType().

hash()

size_t KeywordHash::hash ( const char * str, size_t len )

inlinestaticprivate

Definition at line 702 of file defargs.l.

{
  static const unsigned char asso_values[] =
  {
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49,  5,
     5, 30,  0, 49, 25, 49, 10, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49,  0, 49,  0,  5, 49,
    15,  0, 49, 10, 49, 30, 49, 49,  0, 20,
     0, 49, 15, 49,  5, 10,  0, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
    49, 49, 49, 49, 49, 49
  };
  size_t hval = len;
 
  switch (hval)
  {
    default:
      hval += asso_values[static_cast<unsigned char>(str[4])];
      /*FALLTHROUGH*/
    case 4:
      hval += asso_values[static_cast<unsigned char>(str[3])];
      /*FALLTHROUGH*/
    case 3:
      break;
  }
  return hval;
}

Referenced by find().

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The documentation for this class was generated from the following file:

• src/defargs.l