Error reading characters of string

Django_Untaken

Hello there. I have this structure in Header1.h and instantiating this structure in Header2.h. When I try to initialize this instance, I get this runtime exception. Here is my skeleton of code

HEADER1.h

struct Student {
CString Name;
CString Address;
CString Phone;
};

HEADER2.h

class CHeader2Dlg {
//.....
Student student;
//.....
}

HEADER2.cpp
void CHeader2Dlg::SomeFunction()
{
student.Name = ""; // Here I am getting the said exception
student.Address = "";
student.Phone = "";

}

Richard Andrew x64

Are you perhaps using the Unicode character set but assigning an ascii string? Maybe it should be:

student.Name = L"";

The difficult we do right away... ...the impossible takes slightly longer.

Django_Untaken

I changed that to L"" but in vein. Does it have to do anything with project settings ?

Richard Andrew x64

I suspect there is something more going on than just the code you have posted. It sounds as if the CString object is not being instantiated. Maybe if you could post more, relevant code.

The difficult we do right away... ...the impossible takes slightly longer.

Django_Untaken

Header1.h
struct Account {
CString Name;
CString Address;
CString Phone;
};

Header2.h
class AccountDlg : public CDialog
{
////........
Account account;
////........
}

Header2.cpp

void AccountDlg::Load(int id)
{
CEdit* edit;
CComboBox *combobox;

account.Name= "asd";   ///  EXCEPTION here
account.Address= "asd";
account.Phone = "asd";

accountId = id;
accountSettings.AccountLoad(accountId,account);

//.............

}

Richard Andrew x64

That doesn't reveal anything more than the first post. I think you should post the actual code, not an obfuscated version of it. Show the "#includes" as well.

The difficult we do right away... ...the impossible takes slightly longer.

Lost User

Django_Untaken wrote:

Here I am getting the said exception

What exception?

Albert Holguin

Have you tried explicitly calling the struct's constructors in the class constructor?

class AccountDlg: public CDialog
{
Account account;

public:
//try explicitly initializing the account structure
AccountDlg() : account() {}
}

Django_Untaken

Access violation reading location. Just before this exception, if I debug the application, I see that member variables of this object dont show and Error reading characters of string shows up instead, in the intellisense.

Lost User

That suggests that you have not initialised the object. Have you checked that the constructor is called and sets all the variables correctly?

SundararamanS

It does not look like you are reading the string, you are actually assigning values. It seems the exception is from somewhere else.. Is this the complete code you are debugging ?? Could you please share the full code if possible ?