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

See Also

Reference

<unordered_set>

unordered_set Class

unordered_set::const_reference