有没有一种方法可以使用C＆＃x2B;＆＃x2B;？

Question

我正在尝试将Wstrings存储在Sqlite中。 SQLite是否支持Wstrings的存储？ 以下是代码片段

Person Table created using
CREATE TABLE Persons (     PersonID int,     LastName varchar(255),FirstName varchar(255));

int callback(void* NotUsed, int argc, char** argv, char** azColName) {
    int i;
    for (i = 0; i < argc; i++) {
        printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
    }
    printf("\n");
    return 0;
}

int main()
{
   std::wstring firstName = L"Hello3ф";
   std::wstring lastName = L"World45£";
   sqlite3_stmt* stmt;

   int val = sqlite3_prepare16_v2(db, u"INSERT INTO Persons (PersonID,LastName,FirstName) 
   VALUES (4, ?, ?)", -1, &stmt, nullptr);
   if (val != SQLITE_OK) {
     fprintf(stderr, "Sqlite error: %s", sqlite3_errmsg(db));
     return 133;
   }
   sqlite3_bind_text16(stmt, 1, lastName.c_str(), -1, SQLITE_STATIC);
   sqlite3_bind_text16(stmt, 2, firstName.c_str(), -1, SQLITE_STATIC);
   val = sqlite3_step(stmt);
    if (val != SQLITE_DONE) {
        fprintf(stderr, "Sqlite error: %s", sqlite3_errmsg(db));
        return 134;
    }
    sqlite3_finalize(stmt);
   //To read the records
   std::string query = "select * from Persons";
   sqlite3_exec(db, query.c_str(), callback, NULL, &zErrMsg);
}

输出。回调仅接受char **而不是wchar_t **。有人可以建议我如何安全地存储这些价值吗？

PersonID = 4
LastName = World45£
FirstName = Hello3ф