問題描述
malloc() 和 HeapAlloc() 有什么區別?據我了解 malloc 從堆中分配內存，就像 HeapAlloc 一樣，對嗎?
What is the difference between malloc() and HeapAlloc()? As far as I understand malloc allocates memory from the heap, just as HeapAlloc, right?
那有什么區別?
謝謝！
推薦答案
他們都從堆分配內存是對的.但也有區別:
You are right that they both allocate memory from a heap. But there are differences:
malloc()是可移植的，是標準的一部分.HeapAlloc()不可移植，它是一個 Windows API 函數.
malloc()is portable, part of the standard.HeapAlloc()is not portable, it's a Windows API function.
很可能，在 Windows 上，malloc 將在 HeapAlloc 之上實現.我希望 malloc 比 HeapAlloc 快.
It's quite possible that, on Windows, malloc would be implemented on top of HeapAlloc. I would expect malloc to be faster than HeapAlloc.
HeapAlloc 比 malloc 具有更大的靈活性.特別是它允許您指定要從哪個堆分配.這迎合了每個進程的多個堆.
HeapAlloc has more flexibility than malloc. In particular it allows you to specify which heap you wish to allocate from. This caters for multiple heaps per process.
對于幾乎所有的編碼場景，您將使用 malloc 而不是 HeapAlloc.雖然因為你標記了你的問題 C++，我希望你使用 new!
For almost all coding scenarios you would use malloc rather than HeapAlloc. Although since you tagged your question C++, I would expect you to be using new!
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