why does this fail to compile at the m_map.insert() call?  Error
message follows code fragment.

#include <iostream>
#include <map>

using namespace std; 	//introduces namespace std
int foo( void )
{
	map <int, int *> m_map;
	int i = 10;
	m_map.insert(1,&i);
}
------------------------
Error   : function call 'insert(int, int *)' does not match
'std::map<int, int *, std::less<int>, std::allocator<std::pair<const
int, int *>>>::insert(const std::pair<const int, int *> &)'
'std::map<int, int *, std::less<int>, std::allocator<std::pair<const
int, int *>>>::insert(std::__tree<std::pair<const int, int *>,
std::map<int, int *, std::less<int>, std::allocator<std::pair<const
int, int *>>>::value_compare, std::allocator<std::pair<const int, int
*>>>::iterator, const std::pair<const int, int *> &)'
'std::map<int, int *, std::less<int>, std::allocator<std::pair<const
int, int *>>>::insert<...>(T1_0, T1_0)'
hello.cpp line 11    m_map.insert(1,&i);