在VS2012中元组如何工作？ [英] How do tuples work in VS2012 ?

问题描述

Visual studio 2012功能，元组，但不包括可变参数模板。

Visual studio 2012 features, tuples but not variadic templates.

如何实现元组，如何在不使用varadic模板的情况下实现元组？

How is this done, how one implements tuples without the use of varadic templates ?

推荐答案

简单来说，微软以前在.NET中实现类似tuple的数据类型，许多版本，每个都有固定数量的参数。检查.NET文档。

In a few words, Microsoft did exactly the same thing they did to implement tuple-like datatypes in .NET previously: Creating many versions, each with a fixed number of parameters. Check the .NET documentation.

这是怎么实现的，如何在不使用varadic模板的情况下实现元组请注意，Microsoft所做的是简单的方法：C ++ tuples是一个基于许多最疯狂的元编程技巧（Variadic模板相关）的图书馆功能。基于可变参数模板（即，理论无限通用元组的实现）的元组的实现是不容易的。建议您阅读这篇有趣的文章。

"How is this done, how one implements tuples without the use of varadic templates" Note that what Microsoft did is the easy way: C++ tuples are a library feature based on many of the most freaking metaprogramming tricks (Variadic templates related) ever done. The implementation of tuples based on variadic-templates (i.e. the implementation of theorically-infinite generic tuples) is not easy at all. I suggest you to read this interesting article.

最后，R. Martinho Fernandes在他的博客上有一篇关于高效C ++元组实现的完整文章系列： http://flamingdangerzone.com/cxx11/2012/07/06/optimal-tuple-i.html

Finally R. Martinho Fernandes has a full article series on his blog talking about efficient C++ tuple implementation: http://flamingdangerzone.com/cxx11/2012/07/06/optimal-tuple-i.html

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