unordered_set::reference
The type of a reference to an element.
typedef Alloc::reference reference;
Remarks
The type describes an object that can serve as a reference to an element of the controlled sequence.
Example
// std_tr1__unordered_set__unordered_set_reference.cpp
// compile with: /EHsc
#include <unordered_set>
#include <iostream>
typedef std::unordered_set<char> Myset;
int main()
{
Myset c1;
c1.insert('a');
c1.insert('b');
c1.insert('c');
// display contents " [c] [b] [a]"
for (Myset::iterator it = c1.begin();
it != c1.end(); ++it)
{
Myset::key_type key = *it;
Myset::reference ref = key;
std::cout << " [" << ref << "]";
}
std::cout << std::endl;
return (0);
}
[c] [b] [a]
Requirements
Header: <unordered_set>
Namespace: std