Re: [Boost-users] Using assign::map_list_of for complex types

From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2006-11-16 03:43:40

Hughes, James wrote:

>>>map<int, struct data> mapstuff = map_list_of
>>>(1, {"hello", list_of (3) (4) (2) } ),   // note curly braces 
>>>(3, {"goodbye", list_of (1) (3) ) } );
>>>
>>>But that doesn't work either.
>>>
>>>Is it actually possible to do something like this, and if so, how?
>>
>>I suspect that you have to provide a constructor for your data class:
>>
>>template< class Range >
>>data( const char* str, const Range& r )
>>: str(str), stuff(boost::begin(r),boost::end(r))
>>{ }
>>
> 
> 
> I did something along these lines but still got a load of compile
> faults. Will post a more accurate code snippet when time allows, but
> have a deadline end of today!!

You also need to call the constructor when you call map_list_of():

   map_list_of(1, data( "hello", list_of(3)(4)(4) ) );

-Thorsten