在C ++程序终止时返回内存 [英] Return of memory at the termination of a C++ program

问题描述

当C ++程序终止时，在运行期间使用的RAM被清除并返回到系统，正确？

问题1）
此内存是否由C ++语言特性或计算机硬件本身管理？

问题2）
如果在Unix终端中使用 ctrl + Z 终止运行，内存是否有效/安全地返回？

解决方案

当C ++程序终止时，运行期间使用的RAM被清除，系统，是否正确？

正确。问题1）此内存是否由C ++返回托管的 。 语言功能或计算机硬件本身？

>通过操作系统^{（如果我正确地理解了问题）。}在返回到操作系统之前，内存由进程管理;在低级，这意味着，由各种语言功能，如分配 - 释放机制，构造函数，析构函数，问题2）内存是否有效/安全地返回，如果我终止一个运行使用ctrl + Z在Unix终端？

Ctrl + Z暂停它不终止它。因此，只要进程未终止，内存不会返回到操作系统。

在linux中，Ctrl + C终止进程，然后内存返回操作系统。

When a C++ program terminates, the RAM used during the run gets cleaned and is returned to the system, correct?

Question 1) Is this memory returned managed by C++ language features or by the computer hardware itself?

Question 2) Does the memory get returned efficiently/safely, if I terminate a run using ctrl+Z in Unix terminal?

解决方案

When a C++ program terminates, the RAM used during the run gets cleaned and is returned to the system, correct?

Correct. By System, I hope you mean, Operating System.

Question 1) Is this memory returned managed by C++ language features or by the computer hardware itself?

The returned memory is managed by the operating system ^{(if I correctly understand the question).} And before returning to the OS, the memory is managed by the process; in low-level, which means, managed by various language features, such as allocation- deallocation mechanism, constructors, destructors, RAII, etc.

Question 2) Does the memory get returned efficiently/safely, if I terminate a run using ctrl+Z in Unix terminal?

Ctrl+Z suspends the process. It doesn't terminate it. So the memory doesn't get returned to the OS as long as the process is not terminated.

In linux, Ctrl+C terminates the process, then the memory returns to the OS.

这篇关于在C ++程序终止时返回内存的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！