C ++:如何强制将libc声明转换为std ::? [英] C++: How to force libc declarations into std::?

问题描述

因此，我发现我的C ++程序中需要libc.但是，我不喜欢将其散布在全局名称空间中的想法.理想情况下，我想将整个libc强制放入std::命名空间，因此我必须执行std::memcpy而不是memcpy.

So, I find myself in the need of libc in my C++ program. However, I do not like the idea of sprinkling it all over the global namespace. Ideally, I'd like to force the entirety of libc into the std:: namespace so I'd have to do std::memcpy rather than memcpy.

这可能吗?如何?我愿意在需要时使用特定于编译器的宏(我仅针对MS VC ++ 10.0和GCC 4.6).

Is this possible? And how? I'm willing to use compiler-specific macros if needed (I target only MS VC++ 10.0 and GCC 4.6).

我的意思是强制将声明放入std"-因此，如果没有std ::前缀，它们将无法调用.另外，我包含的是cstdio，而不是stdio.h.

I do literally mean 'force the declarations into std' - so that they are uncallable without the std:: prefix. Also, I am including cstdio, not stdio.h.

谢谢！

推荐答案

除非已完成，否则无法执行此操作.

You cannot do this, unless it's already done.

名称空间std是保留给标准库的，禁止向该名称空间添加新成员.因此，如果C头尚未嵌入在std中，那么您别无选择，只能接受它.

The namespace std is reserved to the Standard Library, it is forbidden to add new members to this namespace. Therefore, if the C-headers are not already embedded within std, then you have no choice but to accept it.

另一方面，您可以完美地创建一个新的命名空间cstd，并使用using指令将全局命名空间中的符号引入其中...但不会使它们消失从全局名称空间访问.

On the other hand, you can perfectly create a new namespace, cstd, and bring the symbols from the global namespace in it with using directives... but it won't make them disappear from the global namespace.

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