after adding few lines of new code .... first execution is fine, second
execution gives the the error : just read the directly from memory location
zero (NULL).
is it due to the NULL parameter in line 9 .... any comment ?
how to solve this problem ?
> Code
> ====
> ptxt = (Char*) MemPtrNew(MAX_HEX_INPUT+1);
> StrCopy(ptxt,input[testIndex]);
FldSetTextPtr(pfld,ptxt); //pfld is non-editable field
FldRecalculateField(pfld,true);
FldDrawField(pfld);
> ....
line 9: FldSetTextPtr(pfld,NULL);
> line10: MemPtrFree(ptxt);
> line11: if(ptxt)
> line12: FrmCustomAlert(InfoAlert,"End of run",
> ptxt , " ");
>
Regards,
Tan Kuan Eeik
[EMAIL PROTECTED]
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Tan
> Kuan Eeik
> Sent: Friday, July 13, 2001 10:58 AM
> To: Palm Developer Forum
> Subject: Mem Free - String Error
>
>
> I'm using gdb to debug...
> after line 10 , ptxt suppose to be free and inaccessible but
> it displays the
> following ptxt value :
> (gdb) display ptxt
> 1: ptxt = 0xbeca
> "B8500C4C9F0E52EA414B7FD2D6D3353BB5EEA88676D7308BD8261ED7C12D38B5"
>
> subsequently, it execute line 11 and 12 which leads it to the error :
> directly read from unallocatable chunck of memory ....
>
> does it mean the ptxt already been free? If so, ptxt should
> be null and
> line 12 should not be executed ...
>
> Can someone plz explain ...thanks.
>
> Code
> ====
> ptxt = (Char*) MemPtrNew(MAX_HEX_INPUT+1);
> StrCopy(ptxt,input[testIndex]);
>
> ....
>
> line10 : MemPtrFree(ptxt);
> line11: if(ptxt)
> line12: FrmCustomAlert(InfoAlert,"End of run",
> ptxt , " ");
>
>
>
> Regards,
> Tan Kuan Eeik
> [EMAIL PROTECTED]
>
>
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