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c ++数据类型和函数可与“ days”一起使用

[英]c++ data type and functions to work with “days”

原文 2014-02-24 08:19:28 3 1 c++

I'm looking for c++ type and functions to work with "days". 我正在寻找c + +类型和函数以使用“天”。

In particular I need to: 特别是我需要：

convert strings like "20140224" to datatype and vice versa (of course i can parse strings myself to int if necessary - 2014, 02, 24) 将类似“ 20140224”的字符串转换为数据类型，反之亦然（当然，如有必要，我可以将字符串自己解析为int-2014、02、24）
"iterate", for example from "20140101" to "20140224" “迭代”，例如从“ 20140101”到“ 20140224”

I don't need: 我不需要：

time of the day. 一天中的时间。 current day is "smallest" pieace i'm working with 今天是我正在与“最小”的和平

I can use c++11, what can you recommend? 我可以使用c ++ 11，您有什么建议？

1 个解决方案

C++ has always stayed away from implementing a standard date library. C ++始终远离实现标准日期库。

They are, in general, very hard to implement and standardise. 通常，它们很难实施和标准化。 ISO8601 provides some guidance but issues such as leap-seconds, and unusual calendars (eg Ethiopia) will always be tricky areas. ISO8601提供了一些指导，但是诸如leap秒和异常日历（例如埃塞俄比亚）之类的问题始终是棘手的领域。

Boost (www.boost.org) certainly makes inroads. Boost（www.boost.org）当然取得了进展。 Refer to their date-time library. 请参阅其日期时间库。 Unfortunately it's quite heavyweight and the build process takes a while to get used to, but worth attempting. 不幸的是，它非常笨重，构建过程需要一段时间才能习惯，但是值得尝试。

(As an aside, Java have attempted it but the date time library in Java is widely considered to be broken). （顺便说一句，Java曾尝试过，但人们普遍认为Java中的日期时间库已损坏）。