查询词典 allocator

If you need to write a user-defined allocator, you have to follow some basic requirements

如果你需要写一个自己定制的allocator，你必须遵循下面的这些要求

As you can see, the reasons to write your own allocator are very dependent on your application.

你需要自己写allocator的原因通常都和你的应用紧密相关。

The construction of an allocator is not allowed to throw.

是因为它们的异常声明：allocator的构造不允许抛出异常。

It is a lower-level analog of the behavior provided by the construct member of the allocator class.

它是对 allocator 类的 construct 成员所提供的行为的低级模拟。

So, why implement an allocator on your own in the first place?

说来说去，为什么我们需要实现自己的allocator呢？

And yes, as you already might have guessed, the whole memory management is done through the so-called allocator.

并且，正如你可以能已经猜到的那样，全部的内存管理工作都是通过allocator完成的。

These functions behave similarly to the allocate and deallocate members of the allocator class.

这些函数的表现与 allocate 类的 allocator 和 deallocate 成员类似。

A calculation model is established for the corrugation and annular flow field of a stratification injection allocator by using 3D Max and it is put into VR environment of PHOENICS and based on the actual geometric size of the allocator,κ-ε turbulent calculating model is used for numerical calculation of water medium flow field by using orthogonal and detail grid under coordinate system.

用3D Max建立了分层配注器波纹环空流场的计算模型，调入PHOENICS的VR编辑环境中，根据实际配注器的几何尺寸，在柱坐标系下，采用局部加密正交网格，应用k-ε湍流计算模型对水介质流场进行了数值计算，给出流场的速度分布与压力分布曲线，并对比分析了3种形状的波纹环空流场的数值计算结果。

However, the memory it allocates is unconstructed. Users of allocator must separately construct and destroy objects placed in the memory it allocates.

但是，它分配的内存是未构造的， allocator 的用户必须分别 construct 和 destroy 放置在该内存中的对象。

The operator new function next checks whether there are any objects on the freelist. If not, it asks the allocator member to allocate chunk new, unconstructed objects. It then iterates through the newly allocated objects, setting the next pointer.

operator new 函数接着检查自由列表中是否有对象，如果没有，它就请求 allocator 成员分配 chunk 个新的未构造对象，然后，它通过新分配的对象进行迭代，设置 next 指针。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。