Re: Memory occupied by Map

On Thu, 12 Jun 2008 17:12:29 -0700 (PDT), "alien.0101@xxxxxxxxx"
<alien.0101@xxxxxxxxx> wrote:

Hi

I want to know the memory occupied by Map, Is there a way to do that.

I have written a sample application and adding value to map doesnot
change size
map<int,int> mapInt2Int;
mapInt2Int[1]=2;
mapInt2Int[2]=2;
mapInt2Int[3]=2;
mapInt2Int[4]=2;
mapInt2Int[5]=2;
mapInt2Int[6]=2;
size_t sz= sizeof(mapInt2Int);

The result of the sizeof operator is a constant fixed at compile-time.

How can I find how much bytes does the map uses.

You can't, at least not without becoming steeped in the details of the
implementation.

My main requirement is to store the map as a byte blob in database and
rettrieve back.

any thoughts???

Serialize the map as (key, value) pairs.

--
Doug Harrison
Visual C++ MVP
.

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