C ++十进制数据类型 [英] C++ decimal data types

问题描述

有没有办法使用十进制数据类型，例如 decimal32 ， decimal64 或我的C ++程序中的decimal128

Is there a way to use decimal data types such as decimal32, decimal64 or decimal128in my C++ programs?

推荐答案

从十进制TR 不是为所有编译器实现的。一些编译器，例如 gcc ，实现 C十进制TR ，并在C ++中提供相应的扩展。在过去，有一个开源实现的C ++十进制TR可用，但我找不到它。如果您的编译器不支持十进制类型，则最佳选项可能是为IBM的 decNumber库。

The classes from the Decimal TR are not implemented for all compilers. Some compilers, e.g., gcc, implement the C Decimal TR and provide the corresponding extensions in C++, too. In the past there was an open source implementation for the C++ Decimal TR available but I failed to locate it. If your compiler doesn't support the decimal types, your best option is probably to create a wrapper for IBM's decNumber library.

为了改善未来C ++的情况，我创建了一个计划更新TR ，我将把当前的TR转换成一个完整的提案，准备下一个C ++委员会会议（4月份在布里斯托尔），试图将其纳入C ++标准，可能进入2014年计划的修订。我的实施是我的正常工作的一部分，不符合我是否决定是否可以公开提供，虽然有一些希望，它可以在某些时候开源。

To improve the situation in the future of C++, I have created a plan to update the TR and I'm going to turn the current TR into a complete proposal ready for the next C++ committee meeting (in April in Bristol), trying to get it adopted into the C++ standard, possibly into the revision planned for 2014. The implementation I have is part of my regular work and it isn't up to me to decide whether it is can be made available publically although there is some hope that it can be open sourced at some point.

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