程序结束后未释放的内存会怎样?

2022-01-11 00:00:00 operating-system memory c c++

重复:什么真的当你在 malloc 之后没有释放时会发生什么?

比如说:

int main()
{
  char* test = new char[50000];
  return 0;
}

程序完成后分配的内存会发生什么?它会立即为其他应用程序释放吗?或者也许在一段时间后?或者它可能永远丢失在系统中?或者它是否被交换到磁盘永远不会返回到 RAM?或者可能是完全不同的东西?

What happens to the allocated memory after the program had finished? Does it get freed for other applications immediately? Or perhaps after some time? Or maybe it's lost to the system forever? Or does it get swapped to the disk never to return to RAM? Or maybe something completely different?

我想知道主要 3 种操作系统会发生什么:Windows(XP 及更高版本，如果有任何差异)、Linux、Mac OS X.

I would like to know what happens on the major 3 OS's: Windows (XP and up, if there are any differences), Linux, Mac OS X.

推荐答案

参见:在 malloc 之后不释放会发生什么?

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