error: no matching function for call to 'std::map - c++

Question

typedef struct {
string strDatabaseName;
set <string, greater<string> > setDBAccName;
} UserDBAInfo_t;
typedef struct {
map<int, UserDBAInfo_t > mapUserDBAInfo;
} UserDBInfo_t;
typedef set<string, greater<string> > setNames_t;
int main( int argc, char * argv[] )
{
...
map<string, UserDBInfo_t > mapHRUserDBInfo;
UserDBInfo_t structUserDBInfo;
UserDBAInfo_t structUserDBAInfo;
structUserDBAInfo.strDatabaseName = strDatabaseName;
structUserDBAInfo.setDBAccName.insert(strDBAccName);
structUserDBInfo.mapUserDBAInfo.insert(nDatabaseID, structUserDBAInfo);
mapHRUserDBInfo.insert(make_pair(strSabun, structUserDBInfo)); <--- compile error here
...
}
When I compile it, I got error message.
main.cpp:2778: error: no matching function for call to 'std::map<int, UserDBAInfo_t, std::less<int>, std::allocator<std::pair<const int, UserDBAInfo_t> > >::insert(int&, UserDBAInfo_t&)'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_map.h:395: note: candidates are: std::pair<typename std::_Rb_tree<_Key, std::pair<const _Key, _Tp>, std::_Select1st<std::pair<const _Key, _Tp> >, _Compare, typename _Alloc::rebind<std::pair<const _Key, _Tp> >::other>::iterator, bool> std::map<_Key, _Tp, _Compare, _Alloc>::insert(const std::pair<const _Key, _Tp>&) [with _Key = int, _Tp = UserDBAInfo_t, _Compare = std::less<int>, _Alloc = std::allocator<std::pair<const int, UserDBAInfo_t> >]
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_map.h:419: note: typename std::_Rb_tree<_Key, std::pair<const _Key, _Tp>, std::_Select1st<std::pair<const _Key, _Tp> >, _Compare, typename _Alloc::rebind<std::pair<const _Key, _Tp> >::other>::iterator std::map<_Key, _Tp, _Compare, _Alloc>::insert(typename std::_Rb_tree<_Key, std::pair<const _Key, _Tp>, std::_Select1st<std::pair<const _Key, _Tp> >, _Compare, typename _Alloc::rebind<std::pair<const _Key, _Tp> >::other>::iterator, const std::pair<const _Key, _Tp>&) [with _Key = int, _Tp = UserDBAInfo_t, _Compare = std::less<int>, _Alloc = std::allocator<std::pair<const int, UserDBAInfo_t> >]
What might be wrong?

Answer 1

The error message, no matching function for call to 'std::map, std::allocator > >::insert(int&, UserDBAInfo_t&), indicates to me that the problem is in the line:
structUserDBInfo.mapUserDBAInfo.insert(nDatabaseID, structUserDBAInfo);
not the line you mentioned in your question. That should be:
structUserDBInfo.mapUserDBAInfo.insert(make_pair(nDatabaseID, structUserDBAInfo));
If you are able to use a C++11 compiler, you can also use:
structUserDBInfo.mapUserDBAInfo.emplace(nDatabaseID, structUserDBAInfo);