From Jason Turner

[map.access]

C++17 → C++20 0.9 KB 13 lines
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Archived: C++17 | C++20
Markdown: C++17 | C++20
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tmp/tmpaxedzta5/{from.md → to.md} RENAMED
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- #### `map` element access <a id="map.access">[[map.access]]</a>
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  ``` cpp
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- T& operator[](const key_type& x);
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  ```
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  *Effects:* Equivalent to: `return try_emplace(x).first->second;`
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  ``` cpp
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- T& operator[](key_type&& x);
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  ```
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  *Effects:* Equivalent to: `return try_emplace(move(x)).first->second;`
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  ``` cpp
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- T& at(const key_type& x);
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- const T& at(const key_type& x) const;
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  ```
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  *Returns:* A reference to the `mapped_type` corresponding to `x` in
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  `*this`.
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+ #### Element access <a id="map.access">[[map.access]]</a>
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  ``` cpp
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+ mapped_type& operator[](const key_type& x);
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  ```
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  *Effects:* Equivalent to: `return try_emplace(x).first->second;`
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  ``` cpp
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+ mapped_type& operator[](key_type&& x);
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  ```
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  *Effects:* Equivalent to: `return try_emplace(move(x)).first->second;`
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  ``` cpp
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+ mapped_type& at(const key_type& x);
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+ const mapped_type& at(const key_type& x) const;
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  ```
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  *Returns:* A reference to the `mapped_type` corresponding to `x` in
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  `*this`.
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