EE::Map inside of a struct

Driklyn · 04-20-2011 08:09 PM

How do you use EE::Map inside of a struct? For instance, if you take the Map tutorial and just wrap the map variable inside of a struct, the map can no longer find the Create or Compare functions. Not sure why and I can't find an explanation on this site or Google.

Code:

struct Test

{

    Map<Key,Data> map(Create,Compare,NULL);

};

Produces these errors:

Code:

error C2061: syntax error : identifier 'Create'

Error: function 'Create' is not a type name

Dynad · 04-20-2011 09:08 PM

Well it can work if you init the map in the constructor if thats what u mean:

PHP Code:

struct Test
{
static Bool Create(Object &obj, int &key, Ptr user)
    {
        return true;
    }

    static Int Compare(int &a, int &b)
    {
        if(a<b)return -1;
        if(a>b)return +1;
        return  0;
    }

 Map<Key,Data> map(Create,Compare,NULL);
}


Test::Test() : map(Test::Create,Test::Compare,NULL)
{

} 

Driklyn · 04-20-2011 10:20 PM

Unfortunately, this does not work for me. Gives the same two errors as above (these errors also apply to Compare as well, obviously) and these:

Code:

EE::Map<Key, Data> Test::map(<error-type>, <error-type>, <error-type>)

Error: "map" is not a nonstatic data member or base class of class "Test"

Still unable to find Create and Compare functions.

Dynad · 04-20-2011 10:34 PM

did you add static to the create/compare functions?

Driklyn · 04-20-2011 10:41 PM

They always were static.

Dynad · 04-20-2011 10:56 PM

Yes but u need to set: Map<int, TestObj> map; in the header file and the Test::Test() : map(Test::Create,Test::Compare,NULL) in the cpp file...

This should work tho...

Driklyn · 04-20-2011 11:11 PM

Eureka! That did the trick.

Code:

struct Test

{

    // Create and Compare functions...

    Map<Key,Data> map; // (Create,Compare,NULL); <== leave off

    Test();

};

Test::Test() : map(Test::Create,Test::Compare,NULL) {}

Thanks!

Dynad · 04-20-2011 11:13 PM

great

EE::Map inside of a struct
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