Nested Boost::unordered_map with std::pair insertion help ..

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  characters per line. -mod }

All,

I have having Boost boost::unordered_map nested map calling
boost::unordered_map which calls std::map finally.

The LHS (towards RHS) side key for first boost::unordered_map is 'int'
type followed by next key being char buffer value of size 10, and key
for std::map being again a char buffer value of size 10. So the
boost::unordered_map has nested map internally.
I have to insert the char buffer of size 10 (value being either 'ORANGE'
or ORD123 as test case) into nested std::pair as defined below. After
inserting, I have to search or find the value from char buffer of size 10.

The code as compiled on Linux is -

----
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <boost/unordered_map.hpp>
#include <map>
#include <algorithm>
#include <string>

using namespace std;

#if 0
#pragma pack(push, 2)
struct BookKeeping {
    int ABCD;
    char Apple_ID [10];
    char Apple_NAME[10];
    int Price;
    int Number;
};
#pragma pack(pop)
#endif

class Name { // buffer of size 10
  char str[10];
public:
  Name() {
     strcpy(str, "");
  }
  Name(char *s) {
     strcpy(str, s);
  }
  char *get() {
     return str;
  }
};

bool operator<(Name a, Name b)
{
   return strcmp(a.get(), b.get()) < 0;
}

#pragma pack(push, 2)
struct BookKeeping {
    int ABCD;
    Name Apple_ID;
    Name Apple_NAME;
    int Price;
    int Number;
};
#pragma pack(pop)

BookKeeping *_bkkping;

typedef boost::unordered_map< int, boost::unordered_map< Name, std::map<
Name, int > > > _uordmap; // nested boost::unordered_map

class BkKping {
private:
         _uordmap * uordmap;

        typedef boost::unordered_map< int, boost::unordered_map< Name,
std::map< Name, int > > >::iterator _itr_1;
        typedef boost::unordered_map< Name, std::map< Name, int >


        typedef std::map< Name, int >::iterator _itr_3;

public:
    BkKping () {
        uordmap = new _uordmap ();
    }
    void Apple ( int abcd, const char * Apple_ID_, const char * Color_, int
Price_ );
    ~BkKping () {
        delete uordmap;
    }

};

void BkKping::Apple ( int abcd, const char * Apple_ID_, const char * Color_,
int Price_ ) {

        uordmap->insert( std::pair< int, std::pair< Name, std::pair< Name,
BookKeeping &> > > ( _bkkping->ABCD , _bkkping->Apple_ID,
_bkkping->Apple_NAME, *_bkkping) ); // nested std::pair<> insertion
}

int main () {

 int abcd;
 const char * Apple_ID_;
 const char * Color_;
 int Price_;

 BkKping book;
 book.Apple( abcd, Apple_ID_, Color_, Price_);

}
-----

The error message is -

---
hello.cpp: In member function ?void BkKping::Apple(int, const char*, const
char*, int)?:
hello.cpp:76: error: no matching function for call to ?std::pair<int,
std::pair<Name, std::pair<Name, BookKeeping&> > >::pair(int&, Name&, Name&,
BookKeeping&)?
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../include/c++/4.4.6/bits/st
l_pair.h:83: note: candidates are: std::pair<_T1, _T2>::pair(const _T1&,
const _T2&) [with _T1 = int, _T2 = std::pair<Name, std::pair<Name,
BookKeeping&> >]
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../include/c++/4.4.6/bits/st
l_pair.h:79: note: std::pair<_T1, _T2>::pair() [with _T1 =
int, _T2 = std::pair<Name, std::pair<Name, BookKeeping&> >]
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../include/c++/4.4.6/bits/st
l_pair.h:68: note: std::pair<int, std::pair<Name,
std::pair<Name, BookKeeping&> > >::pair(const std::pair<int, std::pair<Name,
std::pair<Name, BookKeeping&> > >&)
--

I have created a class buffer to read size 10.

Please help.

P.S: No issue with Boost compilation, simply looking for proper semantic
call for nested std::pair<>.

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