allocate memory!!!

[jayjay60]

I would like to create a function which could return 2 COleDateTime objects simultaneously, so i think that i could use a pointer of COleDateTime. But, as i'm a beginner in C++, i would like to know if someone could show me how we could do the allocation of this pointer, his deletion, and how i could return the dates, as i want the function return dates?

thanks in advance

jayjay

 

[ebuBekir]

I think, for allocating space this is enough.

int n = 2;

COleDateTime* pointer = new COleDateTime [n];

to return the pointer, ...
return (pointer);

It may not be correct, try it please!

 

[SteveD73]

The above is correct except you can't have the 2 in a variable. It has to be a constant.

COleDateTime* CTestView::GetDates()
{
static COleDateTime pointer[2];

return pointer;
}

I think the above works

 

[jayjay60]

do you think that when we do this kind of allocation of memory:
COleDateTime* pointer = new COleDateTime [2];
.
.
.
return pointer;
, we needn't of delete this memory space?

 

[SteveD73]

not if its local.

If you deleted it then the pointer would point to nothing.

If you use something like malloc then you do need to use the free function.

 

[jayjay60]

i have a little pb with my function. in fact, i do sthg like that:

COleDateTime *pDate=new COleDateTime[2]

pDate[0]=StartDate;
pDate[1]=EndDate;

return pDate;

when i debug my application, in the debug window, i could see the "evolution" of the variable pDate, as it's a COleDateTime, it has 2 part:m_dt and m_status.

i could only see that m_dt take, firstly the value of StartDate, and after not EndDate.

but as i'm a beginner, i don't know if what i wrote above is correct, so if someone could tell me if it's the case.

gerald

 

[SteveD73]

If you goto the watch window during debug and type:

pDate[0].m_dt
pDate[0].m_status
pDate[1].m_dt
pDate[1].m_status

What do you get?

What data type are StartDate and EndDate?

 

[jayjay60]

StartDate,endDate are COleDateTime.
i don't see what you show me, i have only pDate.m_dt and pDate.m_status
so?

 

[SteveD73]

Maybe if you change:

COleDateTime *pDate=new COleDateTime[2]

to:

COleDateTime pDate[2];