About Environment::createConnection

I want to know if I enter an incorrect parameter on createConnection, what value will it return to me? The situation I encountered was in

try{

Environment *env;

Connection *conn;

char *usrName = "123";//A deliberately incorrect value

char* usrPwd="123";//A deliberately incorrect value

char* connectStr="123:1521/ ";//A deliberately incorrect value

env = Environment::createEnvironment();

conn = env->createConnection(usrName,usrPwd,connectStr);

}

catch(SQLException p){

cout<<"ErrorCode:"<

cout<<"ErrorMsg:"<

return -1;

}

It will output error code and error message, but instead of return, it will enter interrupt error, indicating heap corruption. So the question is, how do I handle the error after I enter the wrong parameters (account, password, port, etc.)