styleguide/c++/c++11.html - Issue 2797133002: Replace base::get with std::get

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Issue 2797133002: Replace base::get with std::get (Closed)

Patch Set: +styleguide Created 3 years, 8 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <!--	2 <!--

3 Copyright 2014 The Chromium Authors. All rights reserved.	3 Copyright 2014 The Chromium Authors. All rights reserved.

4 Use of this source code is governed by a BSD-style license that can be	4 Use of this source code is governed by a BSD-style license that can be

5 found in the LICENSE file.	5 found in the LICENSE file.

6 -->	6 -->

7 <html>	7 <html>

8 <head>	8 <head>

9 <meta charset="utf-8">	9 <meta charset="utf-8">

10 <title>C++11 use in Chromium</title>	10 <title>C++11 use in Chromium</title>

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495 <td>Allows compile-time inspection of the properties of types</td>	495 <td>Allows compile-time inspection of the properties of types</td>

496 <td><a href="http://en.cppreference.com/w/cpp/header/type_traits">Standard libra ry header <type_traits></a></td>	496 <td><a href="http://en.cppreference.com/w/cpp/header/type_traits">Standard libra ry header <type_traits></a></td>

497 <td>Note that not all type traits are available on all platforms (e.g. <code>std ::underlying_type</code> doesn't work in libstdc++ 4.6). Use judiciously. <a hre f='https://groups.google.com/a/chromium.org/forum/#!topic/cxx/vCxo4tZNd_M'>Discu ssion thread</a></td>	497 <td>Note that not all type traits are available on all platforms (e.g. <code>std ::underlying_type</code> doesn't work in libstdc++ 4.6). Use judiciously. <a hre f='https://groups.google.com/a/chromium.org/forum/#!topic/cxx/vCxo4tZNd_M'>Discu ssion thread</a></td>

498 </tr>	498 </tr>

499	499

500 <tr>	500 <tr>

501 <td>Tuples</td>	501 <td>Tuples</td>

502 <td>All C++11 features in <code><tuple></code>, e.g. <code>std::tie</code> and <code>std::tuple</code>.</td>	502 <td>All C++11 features in <code><tuple></code>, e.g. <code>std::tie</code> and <code>std::tuple</code>.</td>

503 <td>A fixed-size ordered collection of values of mixed types</td>	503 <td>A fixed-size ordered collection of values of mixed types</td>

504 <td><a href="http://en.cppreference.com/w/cpp/header/tuple">Standard library hea der <tuple></a></td>	504 <td><a href="http://en.cppreference.com/w/cpp/header/tuple">Standard library hea der <tuple></a></td>

505 <td>libstdc++ 4.6 has a bug where <code>std::get</code> can return an lvalue-ref erence when it should return an rvalue-reference. <code>base::get</code> can be used to avoid this. <a href="https://groups.google.com/a/chromium.org/forum/#!to pic/cxx/0NnCRmMY1xY">Discussion thread</a>. <a href="https://groups.google.com/a /chromium.org/forum/#!topic/cxx/VA7Ej2IWS2w">Another discussion thread</a></td>	505 <td><a href="https://groups.google.com/a/chromium.org/forum/#!topic/cxx/0NnCRmMY 1xY">Discussion thread</a>. <a href="https://groups.google.com/a/chromium.org/fo rum/#!topic/cxx/VA7Ej2IWS2w">Another discussion thread</a></td>

506 </tr>	506 </tr>

507	507

508 <tr>	508 <tr>

509 <td>Unordered Associative Containers</td>	509 <td>Unordered Associative Containers</td>

510 <td><code>std::unordered_set</code>, <code>std::unordered_map</code>, <code>std: :unordered_multiset</code>, <code>std::unordered_multimap</code></td>	510 <td><code>std::unordered_set</code>, <code>std::unordered_map</code>, <code>std: :unordered_multiset</code>, <code>std::unordered_multimap</code></td>

511 <td>Allows efficient containers of key/value pairs</td>	511 <td>Allows efficient containers of key/value pairs</td>

512 <td><a href="http://en.cppreference.com/w/cpp/container/unordered_map">std::unor dered_map</a>, <a href="http://en.cppreference.com/w/cpp/container/unordered_set ">std::unordered_set</a></td>	512 <td><a href="http://en.cppreference.com/w/cpp/container/unordered_map">std::unor dered_map</a>, <a href="http://en.cppreference.com/w/cpp/container/unordered_set ">std::unordered_set</a></td>

513 <td>Specify custom hashers instead of specializing <code>std::hash</code> for cu stom types. <a href="https://google.github.io/styleguide/cppguide.html#std_hash" >Google Style Guide</a>. <a href="https://groups.google.com/a/chromium.org/forum /#!topic/cxx/nCdjQqnouO4">Discussion thread</a></td>	513 <td>Specify custom hashers instead of specializing <code>std::hash</code> for cu stom types. <a href="https://google.github.io/styleguide/cppguide.html#std_hash" >Google Style Guide</a>. <a href="https://groups.google.com/a/chromium.org/forum /#!topic/cxx/nCdjQqnouO4">Discussion thread</a></td>

514 </tr>	514 </tr>

515	515

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920 <td><a href="http://en.cppreference.com/w/cpp/locale/wstring_convert">std::wstri ng_convert</a>, <a href="http://en.cppreference.com/w/cpp/locale/wbuffer_convert ">std::wbuffer_convert</a>, <a href="http://en.cppreference.com/w/cpp/locale/cod ecvt_utf8">std::codecvt_utf8</a>, <a href="http://en.cppreference.com/w/cpp/loca le/codecvt_utf16">std::codecvt_utf16</a>, <a href="http://en.cppreference.com/w/ cpp/locale/codecvt_utf8_utf16">std::codecvt_utf8_utf16</a></td>	920 <td><a href="http://en.cppreference.com/w/cpp/locale/wstring_convert">std::wstri ng_convert</a>, <a href="http://en.cppreference.com/w/cpp/locale/wbuffer_convert ">std::wbuffer_convert</a>, <a href="http://en.cppreference.com/w/cpp/locale/cod ecvt_utf8">std::codecvt_utf8</a>, <a href="http://en.cppreference.com/w/cpp/loca le/codecvt_utf16">std::codecvt_utf16</a>, <a href="http://en.cppreference.com/w/ cpp/locale/codecvt_utf8_utf16">std::codecvt_utf8_utf16</a></td>

921 <td>Non-UTF-8 text is banned by the <a href="https://google.github.io/styleguide /cppguide.html#Non-ASCII_Characters">Google Style Guide</a>. However, may be use ful for consuming non-ASCII data.</td>	921 <td>Non-UTF-8 text is banned by the <a href="https://google.github.io/styleguide /cppguide.html#Non-ASCII_Characters">Google Style Guide</a>. However, may be use ful for consuming non-ASCII data.</td>

922 </tr>	922 </tr>

923	923

924 </tbody>	924 </tbody>

925 </table>	925 </table>

926	926

927 </div>	927 </div>

928 </body>	928 </body>

929 </html>	929 </html>

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