检查C ++ 0x算法添加的可用性 [英] Checking for availability of C++0x algorithm additions

问题描述

我试图找出一个给定的实现支持哪些算法头的添加（gcc和MSVC是足够的）。方式将是做一样的方式做一个核心功能：检查编译器版本，并定义一个宏，如果一个语言特性被支持。很遗憾，我找不到显示任一编译器的版本号的列表。

只是检查一个通用的C ++ 0x宏（GXX_EXPERIMENTAL或__cplusplus）检查编译器的更改列表，并根据这些列表构建我的宏？

http://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.200x

解决方案

因为所有的编译器供应商提供了一个很好的列表，什么版本的可用，你会测试的功能，无论如何，我会使用编译器版本来检查特定的功能。或者要求用户至少使用一个好的版本，不用担心。

__ cplusplus C ++ 0x宏，它什么也不告诉你。 GXX_EXPERIMENTAL 自GCC 4.3起已存在，所以这也是没用的。

• 这一个用于GCC 。




• 这一个是MSVC的。 （注意：部分实现意味着破坏）

$

b $ b

此处您可以找到要检查的特定版本的宏编译器。

I'm trying to figure out which of the additions to the algorithm headers are supported by a given implementation (gcc and MSVC would be enough).

The simple way would be to do it the same way as one would do it for core features: check the compiler version and define a macro if a language feature is supported. Unfortunately I cannot find a list that shows the version numbers for either compiler.

Is simply checking for a generic C++0x macro (GXX_EXPERIMENTAL or __cplusplus) enough or should I check the change lists for the compilers and build my macros based on those lists?

http://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.200x

解决方案

Since all compiler vendors provide a nice list of what's available in what version, and you would test the functionality anyways, I would use compiler versions to check for specific features. Or demand the user uses at least a good version, and not worry about it.

__cplusplus is not necessarily a C++0x macro, it tells you nothing. GXX_EXPERIMENTAL has existed since GCC 4.3, so that's pretty useless too.

• This one is for GCC.

• This one is for MSVC. (mind you: partially implemented means broken)

• This one is for Intel.

Here you can find what macros to check against for a specific version of a compiler.

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