From Jason Turner

[refwrap.helpers]

C++17 → C++20 1.3 KB 16 lines
Current Draft | LaTeX Source
Archived: C++17 | C++20
Markdown: C++17 | C++20
Explore in Adventure Game

Diff to HTML by rtfpessoa

Files changed (1) hide show
  1. tmp/tmpydhwjj08/{from.md → to.md} +8 -5
tmp/tmpydhwjj08/{from.md → to.md} RENAMED
@@ -1,26 +1,29 @@
1
- #### `reference_wrapper` helper functions <a id="refwrap.helpers">[[refwrap.helpers]]</a>
 
 
 
2
 
3
  ``` cpp
4
- template <class T> reference_wrapper<T> ref(T& t) noexcept;
5
  ```
6
 
7
  *Returns:* `reference_wrapper<T>(t)`.
8
 
9
  ``` cpp
10
- template <class T> reference_wrapper<T> ref(reference_wrapper<T> t) noexcept;
11
  ```
12
 
13
  *Returns:* `ref(t.get())`.
14
 
15
  ``` cpp
16
- template <class T> reference_wrapper<const T> cref(const T& t) noexcept;
17
  ```
18
 
19
  *Returns:* `reference_wrapper <const T>(t)`.
20
 
21
  ``` cpp
22
- template <class T> reference_wrapper<const T> cref(reference_wrapper<T> t) noexcept;
23
  ```
24
 
25
  *Returns:* `cref(t.get())`.
26
 
 
1
+ #### Helper functions <a id="refwrap.helpers">[[refwrap.helpers]]</a>
2
+
3
+ The template parameter `T` of the following `ref` and `cref` function
4
+ templates may be an incomplete type.
5
 
6
  ``` cpp
7
+ template<class T> constexpr reference_wrapper<T> ref(T& t) noexcept;
8
  ```
9
 
10
  *Returns:* `reference_wrapper<T>(t)`.
11
 
12
  ``` cpp
13
+ template<class T> constexpr reference_wrapper<T> ref(reference_wrapper<T> t) noexcept;
14
  ```
15
 
16
  *Returns:* `ref(t.get())`.
17
 
18
  ``` cpp
19
+ template<class T> constexpr reference_wrapper<const T> cref(const T& t) noexcept;
20
  ```
21
 
22
  *Returns:* `reference_wrapper <const T>(t)`.
23
 
24
  ``` cpp
25
+ template<class T> constexpr reference_wrapper<const T> cref(reference_wrapper<T> t) noexcept;
26
  ```
27
 
28
  *Returns:* `cref(t.get())`.
29