C / C++ / MFC

24-Jun-07 22:02

Hi,

in my case i needed to ignore the LIBCMTD.lib ( D for Debug )
You can ignore this library into the project-properties at Link/Linking (*)
Then you choose the second sub-item (under General)
there you can ignore libraries

I hope this will help you

* = I have VS.NET in german language so i don't know the exact expressions

new-delete

samira forooghi24-Jun-07 21:15

samira forooghi

24-Jun-07 21:15

Hello everybody
I have one Function that returned one char* value.
In this function I declare one char* variable and new it.
Like this:

char* CProject::Myfunction(CString strData, CString strPassword,int iRand)<br />
{<br />
	char *chResult=new char[strlen(chDataString)/2];<br />
.	<br />
.<br />
	do something on chResult<br />
.<br />
.<br />
return chResult;<br />
}

In end of function I must return this value.
Where I can delete this pointer?
Pleases help me.

With special tanks and excuse for my bad English language
Good luck

baerten24-Jun-07 21:17

24-Jun-07 21:17

Hi,

not in this funtion.

some where you have the line

char *line = Myfunction(.....);

than you use the line and after it, you delete it via

delete[] line;

I hope it works Smile | :)

CPallini24-Jun-07 21:19

CPallini

24-Jun-07 21:19

The caller of the function must delete it.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

HakunaMatada24-Jun-07 21:20

HakunaMatada

24-Jun-07 21:20

samira samehforooghy wrote:
Where I can delete this pointer?

I believe you could delete it in the function which calls your Myfunction.

char* ch = Myfunction(...);<br />
.....<br />
delete ch;

Hope this helps. Smile | :)

---

Hakuna-Matata Beer | [beer]

It means no worries for the rest of your days...
It's our problem free, Philosophy
Jig | [Dance]

samira forooghi24-Jun-07 21:26

samira forooghi

24-Jun-07 21:26

thanks for your answer

i will be test them

Stephen Hewitt24-Jun-07 21:34

Stephen Hewitt

24-Jun-07 21:34

When you don't need it anymore....

Steve

samira forooghi24-Jun-07 22:05

samira forooghi

24-Jun-07 22:05

and in this case:

CString str= Myfunction(.....);

?????????????????????????????

markkuk24-Jun-07 22:10

markkuk

24-Jun-07 22:10

In that case you must change Myfunction() to return a CString, or you will have a memory leak.

CPallini24-Jun-07 22:18

CPallini

24-Jun-07 22:18

markkuk wrote:
In that case you must change Myfunction() to return a CString, or you will have a memory leak.

Actually the above is not completely true: provided you follow the baerten [^] suggestion the code will work fine.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

baerten24-Jun-07 22:10

Help ................Please

24-Jun-07 22:10

char *temp = Myfunction(....);
CString str = temp;
delete[] temp;

Because i THINK CString copies the char's into his own locatet memory.
So you lost the pointer to the allocated memory of the funtion Myfuntion,
You need to save temporary the pointer, only to delete him.

command window

deeps_cute24-Jun-07 21:09

deeps_cute

24-Jun-07 21:09

how to run a command using shellexecute in administrator mode ie c:\windows\system32

Arise Awake Stop Not Till ur Goal is Reached.

Y_Kaushik24-Jun-07 21:08

Y_Kaushik

24-Jun-07 21:08

Hello

I know its very basic question , i am very assamed for asking this question

But i don't have any other option so....... My problem is that

I am making an applicaton in vc++ 6.0 and now my application is almost
complete.
Now i need to setup it to client mechine.

Can any one told me what necessary MFC .dll are required for this , and what is net link for downloading these .dll

What special for instrolation these .dll.....

Note : My MFC Application id modal dialog based

Regard's
Kaushik

baerten24-Jun-07 21:15

24-Jun-07 21:15

I need :

mfc71d.dll
msvcp71d.dll
msvcr71d.dll

But, if you start the application, the error-message tells you which files aren't present.

You can also built you application with'in the MFC (so the MFC is staticly linked into you app)
Since now i never tried it, but it's a basic "must"

Because if you download a .exe you never have some mfc DLL's delivered with Smile | :)

Good luck

Cedric Moonen24-Jun-07 21:17

Cedric Moonen

24-Jun-07 21:17

You can use dependency walker[^] to check which dll's are needed.
If you use VC2005 you'll need to run vcredist_x86.exe instead (that will install the run-time libraries and MFC dll's).

Cédric Moonen
Software developer

Charting control [v1.2]

Help ................Please

Y_Kaushik24-Jun-07 21:19

Y_Kaushik

24-Jun-07 21:19

Thankyou so much

Regard's
Kaushik

Y_Kaushik24-Jun-07 21:06

Y_Kaushik

24-Jun-07 21:06

Regard's
Kaushik