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title add_lvalue_reference Class | Microsoft Docs
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ms.date 11/04/2016
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cpp-standard-libraries
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type_traits/std::add_lvalue_reference
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C++
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add_lvalue_reference
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cplusplus

add_lvalue_reference Class

Makes reference to type from type.

Syntax

template <class T>  
struct add_lvalue_reference;  
 
template <class T>  
using add_lvalue_reference_t = typename add_lvalue_reference<T>::type;

Parameters

T
The type to modify.

Remarks

An instance of the type modifier holds a modified-type that is T if T is an lvalue reference, otherwise T&.

Example

#include <type_traits>   
#include <iostream>   
  
using namespace std;  
int main()  
{  
    int val = 0;  
    add_lvalue_reference_t<int> p = (int&)val;  
    p = p;  // to quiet "unused" warning   
    cout << "add_lvalue_reference_t<int> == "  
        << typeid(p).name() << endl;  
  
    return (0);  
}  
add_lvalue_reference_t<int> == int

Requirements

Header: <type_traits>

Namespace: std

See Also

<type_traits>
remove_reference Class