[Qt-interest] Segmentation fault while converting from QString to char*

[Alexandre Beraud]

Hi,

Where is the memory allocation for 'file_name' ? If you allocate before 
getting the pointer to ba.data() how do you know the size you need to 
allocate ?

Regards,

Alex

prashant bhutani a écrit :
> Hi everyone,
>
> I am making a program which fetch a file from directory using 
> *getOpenFileName* and it returns the path as a *QString*.
> Now I have to convert the path in *char** which i am doing using
>          *QByteArray ba = qt_file_name.toLatin1();    *//qt_file_name 
> is path of file in Qstring
> *         const char* temp = ba.data();                        *
> *         strcpy(file_name,temp);                                 *// 
> file_name is in char*
>
> Now the code is causing segmentation fault in my program as it runs 
> fine when these statements are made comments.
> Can anyone please tell the reason for segmentation fault and how to 
> remove it?
>
> I have also used *toLatin1* ,* toAscii* to convert QSrting to char* 
> but all cause same segmentation fault.
>
> Regards,
> Prashant
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