[specialized.addressof]

# 20 Memory management library [[mem]](./#mem)

## 20.2 Memory [[memory]](memory#specialized.addressof)

### 20.2.11 addressof [specialized.addressof]

[🔗](#lib:addressof)

`template<class T> constexpr T* addressof(T& r) noexcept;
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/memory.tex#L2117)

*Returns*: The actual address of the object or function referenced by r, even in the
presence of an overloaded operator&[.](#1.sentence-1)

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/memory.tex#L2122)

*Remarks*: An expression addressof(E) is a constant subexpression ([[defns.const.subexpr]](defns.const.subexpr "3.15 constant subexpression"))
if E is an lvalue constant subexpression[.](#2.sentence-1)