Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
template <class T>
struct add_lvalue_reference
{
typedef see-below type;
};
template <class T> using add_lvalue_reference_t = typename add_lvalue_reference<T>::type; // C++11 and above
type: If T
names an object or function type then the member typedef type
shall name T&;
otherwise, if T names a type
rvalue reference to U then the member typedef type shall
name U&;
otherwise, type shall name T.
C++ Standard Reference: 20.7.6.2.
Header: #include
<boost/type_traits/add_lvalue_reference.hpp>
or #include <boost/type_traits.hpp>
Table 1.12. Examples
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Result Type |
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Compiler Compatibility: All current compilers are supported by this trait.