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Problem extending boost::multi_index on GCC 4.6
- From: Claudio La Rosa <clros at tiscali dot it>
- To: gcc-help at gcc dot gnu dot org
- Date: Tue, 6 Dec 2011 10:45:52 -0800 (PST)
- Subject: Problem extending boost::multi_index on GCC 4.6
Hi!
I have this class that extends the boost::multi_index:
#include <boost/multi_index_container.hpp>
#include <boost/multi_index/ordered_index.hpp>
#include <boost/multi_index/member.hpp>
#include <boost/multi_index/random_access_index.hpp>
using namespace boost::multi_index;
template<typename K,typename V>
struct mutable_pair
{
typedef K first_type;
typedef V second_type;
mutable_pair():first(K()),second(V()){}
mutable_pair(const K& f,const V&s):first(f),second(s){}
mutable_pair(const std::pair<K,V>&
p):first(p.first),second(p.second){}
K first;
mutable V second;
};
template<typename K,typename V>
class Ordered_Map : public multi_index_container<
mutable_pair<K, V>,
indexed_by< random_access<>,
ordered_unique<member<mutable_pair<K,V>, K, &mutable_pair<K, V>::first> >
>
>
{
public:
V& operator[]( const K& key )
{
//here I have error on end() (but no error on insert()) and
on get<>(). end() insert() and get<>() should be methods of superclass.This
code work well on MSVC 2010
insert(end(), mutable_pair<K, V>(key,V())); //error on end()
on GCC
return get<1>().find(key)->second; //error on
get<>() on GCC
}
};
int main()
{
Ordered_Map<std::string,int> myMap;
myMap["Joe"] = 3;
myMap["Lillo"] = 9;
myMap["Mary"] = -3;
for (auto i = myMap.cbegin(); i != myMap.cend(); ++i)
std::cout << i->first << " - " << i->second << std::endl;
std::cin.get();
return 0;
}
This code work well on MSVC 2010 but I have various compiler error on GCC
4.6.1 (Ubuntu 11.10). Why?
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