Creating an sqlite3 table with c++ - c++

Question

I know their is another question with this exact title but it doesn't solve my problem, so here goes.
I am following a tutorial on using SQLite with c++, but when I run my program to create the database table, I get an error;
static int create_database(const char *s);
static int create_table(const char *s);
int main(){
const char *file = "Mafia.sqlite";
sqlite3 *db;
create_database(file);
create_table(file);
}
static int create_database(const char* s){
sqlite3 *db = NULL;
int query = 0;
query = sqlite3_open_v2(s, &db, SQLITE_OPEN_CREATE, NULL);
cout << "Database created successfully!\n";
sqlite3_close(db);
return 0;
}
static int create_table(const char* s){
sqlite3 *db;
string sql = "CREATE TABLE IF NOT EXISTS USERS("
"ID INTEGER PRIMARY KEY AUTOINCREMENT,"
"USERNAME TEXT NOT NULL,"
"PASSWORD TEXT NOT NULL);";
try{
int query = 0;
query = sqlite3_open_v2(s, &db, SQLITE_OPEN_READWRITE, NULL);
char *error_message;
query = sqlite3_exec(db, sql.c_str(), NULL, 0, &error_message);
if(query != SQLITE_OK){
cerr << "Error occurred creating table!\n";
sqlite3_errmsg(db);
sqlite3_free(error_message);
}else
cout << "Table created successfully\n";
sqlite3_close(db);
}
catch(const exception &e){
cerr << e.what() << '\n';
}
}
My terminal returns the following:
Database created successfully!
Error occurred creating table!
test(13698,0x109148dc0) malloc: Non-aligned pointer 0x102bd9641 being freed
test(13698,0x109148dc0) malloc: *** set a breakpoint in malloc_error_break to debug
Edit
I corrected the sql error and I still have the same problem
Thanks.

Answer 1

There are couple of things,
First you need to initialize error_message to nullptr. Otherwise sqlite3_free will cause a crash since error_message is having some garbage value.
Secondly, according to the SQLITE documentation, you need to use atleast one of the three options while opening an SQLITE connection,
SQLITE_OPEN_READONLY
SQLITE_OPEN_READWRITE
SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE
You are not supposed to use SQLITE_OPEN_CREATE as a standalone option.
If you change these two, it should work fine.