C++ (Cpp) varstr_levenshtein_less_equalの例

コード例 #1

ファイル: fuzzystrmatch.c プロジェクト: JiannengSun/postgres

Datum
levenshtein_less_equal_with_costs(PG_FUNCTION_ARGS)
{
	text	   *src = PG_GETARG_TEXT_PP(0);
	text	   *dst = PG_GETARG_TEXT_PP(1);
	int			ins_c = PG_GETARG_INT32(2);
	int			del_c = PG_GETARG_INT32(3);
	int			sub_c = PG_GETARG_INT32(4);
	int			max_d = PG_GETARG_INT32(5);
	const char *s_data;
	const char *t_data;
	int			s_bytes,
				t_bytes;

	/* Extract a pointer to the actual character data */
	s_data = VARDATA_ANY(src);
	t_data = VARDATA_ANY(dst);
	/* Determine length of each string in bytes and characters */
	s_bytes = VARSIZE_ANY_EXHDR(src);
	t_bytes = VARSIZE_ANY_EXHDR(dst);

	PG_RETURN_INT32(varstr_levenshtein_less_equal(s_data, s_bytes, t_data,
												  t_bytes, ins_c, del_c,
												  sub_c, max_d));
}

コード例 #2

ファイル: fuzzystrmatch.c プロジェクト: dreamsxin/postgresql-1

Datum
levenshtein_less_equal(PG_FUNCTION_ARGS)
{
	text	   *src = PG_GETARG_TEXT_PP(0);
	text	   *dst = PG_GETARG_TEXT_PP(1);
	int			max_d = PG_GETARG_INT32(2);
	const char *s_data;
	const char *t_data;
	int			s_bytes,
				t_bytes;

	/* Extract a pointer to the actual character data */
	s_data = VARDATA_ANY(src);
	t_data = VARDATA_ANY(dst);
	/* Determine length of each string in bytes */
	s_bytes = VARSIZE_ANY_EXHDR(src);
	t_bytes = VARSIZE_ANY_EXHDR(dst);

	PG_RETURN_INT32(varstr_levenshtein_less_equal(s_data, s_bytes,
												  t_data, t_bytes,
												  1, 1, 1,
												  max_d, false));
}