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Wanted to be able to put multiple items into my set which is in my map after I realised I had got the project wrong.

The code I have is

map<string,set<string> > token;

int main()
{
label = "s1";
token[label].insert("orange", "pears");

return 0;
}

Result I want in the map should be the first string is "s1" and the set should contain "orange" and "pears"

Prompt reply would be ideal as deadline is scary close

Posted 11-Jan-11 3:17am

Budlee

Updated 11-Jan-11 3:41am

v2

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2 solutions

Solution 2

Well map is a collection of key,value pair. Since your value is "orange", "pears" that is what you will get.

a. You can insert your key part of your value insert
b. when you fetch your value, append to it your key as well.
c. Extend map to have that functionality for you.

In short, the map will not do it for you.

just my 2cent.

Posted 11-Jan-11 3:37am

Yusuf

Comments

Sergey Alexandrovich Kryukov 11-Jan-11 10:32am

That's right - a 5.

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Espen Harlinn · Accepted Answer · 2011-01-11T03:20:00

Solution 1

You probably want to use a multimap[^]

Update:

using namespace std;

typedef map< string , set < string > > tokenmap;

tokenmap token;

int _tmain(int argc, _TCHAR* argv[])
{
    string label("s1");
    set < string > stringSet;
    stringSet.insert("orange");
    stringSet.insert("pears");
    token.insert(tokenmap::value_type(label,stringSet));
    return 0;
}

Regards
Espen Harlinn

Posted 11-Jan-11 3:20am

Espen Harlinn

Updated 11-Jan-11 3:32am

v3

Comments

Budlee 11-Jan-11 9:21am

I know it is possible without a multimap and would ideally not want to use one

Thanks for the answer that will do the job perfectly and also the prompt reply is IDEAL

Many Thanks Coding project and especially Espen for saving me again :D

Sergey Alexandrovich Kryukov 11-Jan-11 10:34am

Good answer - a 5.

Espen Harlinn 11-Jan-11 10:59am

Thanks SAKryukov!