[Boost-users] [assign] Nested initialization of std containers

Subject: [Boost-users] [assign] Nested initialization of std containers
From: Joseph Lisee (jlisee_at_[hidden])
Date: 2009-02-18 11:36:58

I am trying to use list_of and map_list_of to initialize a std::vector
containing std::maps.  I am using Boost 1.37 and Mac OS X 10.4 with Apple's G++
4.0.1.  Here is a complete example:

#include <vector>
#include <map>
#include <string>

#include <boost/assign/list_of.hpp>

using namespace boost::assign;

typedef std::map<int, std::string> dict;
typedef std::vector<dict> list;

int main()
{
    // Works
    dict d = map_list_of(1,"B")(2,"A");
    list l1 = list_of(d);

    // Does not compile
    list l2 = list_of(map_list_of(1,"B")(2,"A"));

    return 0;
}

Is there some way to get this to work?