无操作“不做任何操作”函数对象存在于C ++（0x）？ [英] Does a no-op "do nothing" function object exist in C++(0x)?

问题描述

我意识到这是一个可笑的问题，需要不到2秒的时间来实现。但我模糊地记得阅读，一个是用新的标准介绍。

I realize this is a ludicrous question for something that takes less than 2 seconds to implement. But I vaguely remember reading that one was introduced with the new standard.

我grep'ed VC10的标题，没有出来。你能帮我吗？这是臭虫我！ ：）

I grep'ed VC10's headers and came up with nothing. Can you help? It's bugging me! :)

edit：
第二个想法是，我记住的新函数可能是不相关的

edit: On second thought, the new functor I was remembering was probably the unrelated std::default_deleter.

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