deleting a value from multimap

[Christopher Jefferson]

On 1 Dec 2011, at 15:58, mahadev wrote:

> 
> Hi all,
> 
> my requirement is to delete a "value" from a multimap regardless of the
> "key".
> For ex:
>   multimap<string, int> fruits;
>   fruits.insert(pair<string, int>("apple",1));
>   fruits.insert(pair<string, int>("apple",2));
> 
>   fruits.insert(pair<string, int>("cherry",1));
>   fruits.insert(pair<string, int>("cherry",3));
> 
> I want to delete the value "1"  whether the key ="apple" or "cherry".
> After deletion "apple" should have only "2" as its value;i.e i need to
> delete only the "value" and not the "key"

This is really more of a question for gcc-help, or a general C++ help mailing list.

There is no efficient method of doing this, you will have to iterate through the whole multimap, looking for such elements. I will leave it up to you to iterate through the multimap and delete certain elements.

Chris

> 
> Thanks,
> Vasavi
> 
> 
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