我可以分配内存块用新的？ [英] Can I Allocate a Block of Memory with new?

问题描述

所以，这样的回答：使用单一​​的malloc到 http://stackoverflow.com/a/19765782/1606345 描述分配结构，并在同一时间的数组。

So this answer: http://stackoverflow.com/a/19765782/1606345 described using a single malloc to allocate a struct and it's arrays at the same time.

我想知道有没有类似的方式与新的做到这一点？结果
很显然，我希望能够分配到，我在运行时收到的是与C的例子做了尺寸。

What I'd like to know is there a similar way to do this with new?
Obviously I want to be able to allocate to a size that I receive at runtime as is done with the C example.

推荐答案

您可以使用分配的内存块新与数组字符，然后使用安置新调用该存储器块的构造。

You can allocate a block of memory using new with an array of char, then use placement new to call the constructor on that block of memory.

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