styleguide/c++/c++11.html - Issue 1673563002: Replace base::Tuple implementation with std::tuple

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Issue 1673563002: Replace base::Tuple implementation with std::tuple (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 10 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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466 <td>Unordered Associative Containers</td>	466 <td>Unordered Associative Containers</td>

467 <td><code>std::unordered_set</code>, <code>std::unordered_map</code>,	467 <td><code>std::unordered_set</code>, <code>std::unordered_map</code>,

468 <code>std::unordered_multiset</code>, and <code>std::unordered_multimap</code></ td>	468 <code>std::unordered_multiset</code>, and <code>std::unordered_multimap</code></ td>

469 <td>Allows efficient containers of key/value pairs</td>	469 <td>Allows efficient containers of key/value pairs</td>

470 <td><a href="http://en.cppreference.com/w/cpp/container/unordered_map">std::unor dered_map</a>	470 <td><a href="http://en.cppreference.com/w/cpp/container/unordered_map">std::unor dered_map</a>

471 and <a href="http://en.cppreference.com/w/cpp/container/unordered_set">std::unor dered_set</a>	471 and <a href="http://en.cppreference.com/w/cpp/container/unordered_set">std::unor dered_set</a>

472 </td>	472 </td>

473 <td>Per the <a href="https://google.github.io/styleguide/cppguide.html#std_hash" >Google style guide</a>, specify custom hashers instead of specializing <code>st d::hash</code> for custom types. <a href="https://groups.google.com/a/chromium.o rg/forum/#!topic/cxx/nCdjQqnouO4">Discussion thread</a>.</td>	473 <td>Per the <a href="https://google.github.io/styleguide/cppguide.html#std_hash" >Google style guide</a>, specify custom hashers instead of specializing <code>st d::hash</code> for custom types. <a href="https://groups.google.com/a/chromium.o rg/forum/#!topic/cxx/nCdjQqnouO4">Discussion thread</a>.</td>

474 </tr>	474 </tr>

475	475

	476 <tr>

	477 <td>Tuples</td>

	478 <td><code>std::tuple</code></td>

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

	480 <td><a href="http://en.cppreference.com/w/cpp/utility/tuple">std::tuple</a></td>

	481 <td><a href="https://crbug.com/554987">Tracking bug</a> to plan moving from <cod e>base::Tuple</code> to <code>std::tuple</code>. See also <code>std::tie</code>.

	482 <code>base::Tuple</code> is now an alias for <code>std::tuple</code>. In class t emplate specializations, use <code>std::tuple</code> instead of <code>base::Tupl e</code> to work around a MSVS2013 internal compiler error (Error code: C1001).

	483 </td>

	484 </tr>

	485

476 </tbody>	486 </tbody>

477 </table>	487 </table>

478	488

479 <h2 id="blacklist">C++11 Blacklist (Disallowed and Banned Features)</h2>	489 <h2 id="blacklist">C++11 Blacklist (Disallowed and Banned Features)</h2>

480	490

481 <p>This section lists features that are not allowed to be used yet.	491 <p>This section lists features that are not allowed to be used yet.

482	492

483 <h3 id="blacklist_banned"><a name="core-blacklist"></a>C++11 Banned Features</h3 >	493 <h3 id="blacklist_banned"><a name="core-blacklist"></a>C++11 Banned Features</h3 >

484	494

485 <p>This section lists C++11 features that are not allowed in the Chromium	495 <p>This section lists C++11 features that are not allowed in the Chromium

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1022 <tr>	1032 <tr>

1023 <td>Trailing Return Types</td>	1033 <td>Trailing Return Types</td>

1024 <td><code>auto <i>function declaration</i> -> <i>return_type</i></code></td>	1034 <td><code>auto <i>function declaration</i> -> <i>return_type</i></code></td>

1025 <td>Allows trailing function return value syntax</td>	1035 <td>Allows trailing function return value syntax</td>

1026 <td><a href="http://en.cppreference.com/w/cpp/language/function">	1036 <td><a href="http://en.cppreference.com/w/cpp/language/function">

1027 Declaring functions</a></td>	1037 Declaring functions</a></td>

1028 <td><a href="https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev /OQyYSfH9m2M">Discussion thread</a></td>	1038 <td><a href="https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev /OQyYSfH9m2M">Discussion thread</a></td>

1029 </tr>	1039 </tr>

1030	1040

1031 <tr>	1041 <tr>

1032 <td>Tuples</td>

1033 <td><code>std::tuple</code></td>

1034 <td>A fixed-size ordered collection of values of mixed types</td>

1035 <td><a href="http://en.cppreference.com/w/cpp/utility/tuple">std::tuple</a></td>

1036 <td><a href="https://crbug.com/554987">Tracking bug</a> to plan moving from <cod e>base::Tuple</code> to <code>std::tuple</code>. See also <code>std::tie</code>< /td>

1037 </tr>

1038

1039 <tr>

1040 <td>Type-Generic Math Functions</td>	1042 <td>Type-Generic Math Functions</td>

1041 <td>Functions within <code><ctgmath></code></td>	1043 <td>Functions within <code><ctgmath></code></td>

1042 <td>Provides a means to call real or complex functions	1044 <td>Provides a means to call real or complex functions

1043 based on the type of arguments</td>	1045 based on the type of arguments</td>

1044 <td><a href="http://en.cppreference.com/w/cpp/header/ctgmath">	1046 <td><a href="http://en.cppreference.com/w/cpp/header/ctgmath">

1045 Standard library header <ctgmath></a></td>	1047 Standard library header <ctgmath></a></td>

1046 <td></td>	1048 <td></td>

1047 </tr>	1049 </tr>

1048	1050

1049 <tr>	1051 <tr>

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1110 C++ Style Guide</a>. However, may be useful for	1112 C++ Style Guide</a>. However, may be useful for

1111 consuming non-ASCII data.</td>	1113 consuming non-ASCII data.</td>

1112 </tr>	1114 </tr>

1113	1115

1114 </tbody>	1116 </tbody>

1115 </table>	1117 </table>

1116	1118

1117 </div>	1119 </div>

1118 </body>	1120 </body>

1119 </html>	1121 </html>

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