On Wed, 13 Jan 2010, Szak�ts Viktor wrote:
> > But if pw exists in a single instance, isn't it a waste to create a new item
> > to store a string of the same lenght?
> Yes, speaking about STUFF(), it is, but to avoid it,
> you'd have to make several checks to verify whether
> there is room to opt
>> These were my two first thoughts, but internally
>> I think they both just create new string and may
>> leave old buffer content around in an unreleased
>> block.
>>
>
> But if pw exists in a single instance, isn't it a waste to create a new item
> to store a string of the same lenght?
Yes
On Wed, 13 Jan 2010, Szak�ts Viktor wrote:
> Thank you. Just posted pretty much the exact same solution :)
I've seen and you even used exactly the same name as I in 1-st version :)
by then I decided that setting spaces may be more functional for users
also in some other context, i.e. clearing get
Viktor,
>
> These were my two first thoughts, but internally
> I think they both just create new string and may
> leave old buffer content around in an unreleased
> block.
>
But if pw exists in a single instance, isn't it a waste to create a new item
to store a string of the same lenght?
Ma
> Indirectly by functions using hb_itemGetWriteCL() on parameters passed
> by reference. You can find few functions in HBRTL.
>
>> --- server.prg
>> ? "Please enter password:"
>> ACCEPT TO pw
>>
>> pw := NIL
>>
>> ---
>> I want that the content of 'pw' variable be surely
>> cleared from memory.
Hi Maurilio,
> Viktor,
>
> pw := Space( Len( pw ) )
>
> could do it?
>
> And a
>
> pw := Stuff( pw, 1, Len( pw ), Space( Len( pw ) ) )
>
> Given that the string has same lenght shouldn't it reuse allocated memory?
These were my two first thoughts, but internally
I think they both just creat
On Wed, 13 Jan 2010, Szak�ts Viktor wrote:
Hi,
> Is there a safe way to clear to content of a variable in Harbour?
Indirectly by functions using hb_itemGetWriteCL() on parameters passed
by reference. You can find few functions in HBRTL.
> --- server.prg
> ? "Please enter password:"
> ACCEPT TO
Viktor,
pw := Space( Len( pw ) )
could do it?
And a
pw := Stuff( pw, 1, Len( pw ), Space( Len( pw ) ) )
Given that the string has same lenght shouldn't it reuse allocated memory?
Maurilio.
Viktor Szakáts wrote:
> Hi All,
>
> Is there a safe way to clear to content of a variable in Harbour?
Hi All,
Is there a safe way to clear to content of a variable in Harbour?
--- server.prg
? "Please enter password:"
ACCEPT TO pw
pw := NIL
---
I want that the content of 'pw' variable be surely
cleared from memory.
Is this currently possible? and how?
Brgds,
Viktor
