heapalloc

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Why system allocs more memory when using pointers Windows?

I use HeapAlloc to alloc a huge amount of memory, like 400 MB, but when i check the Memory Usage of my program it really uses like 1 GB.[详细]

2023-03-27 19:15 分类：问答
Calling malloc() from unmanaged DLL called within managed DLL generates access violation

I have a suite of tests written in C++/CLI that call into a native DLL in order to remotely test a W开发者_JS百科indows CE device.At two points during the test setup process, memory on the native heap[详细]

2023-03-16 13:59 分类：问答
Searching for a safe magic number for in-memory data structure

I\'m implementing a heap allocator (malloc), and I need to choose a magic number to check if a given pointer point to a data structure I allocated. It seems obvious to me that no magic number can be[详细]

2023-02-10 11:01 分类：问答
Is there a fundamental difference between malloc and HeapAlloc (aside from the portability)? [duplicate]

This question already has answers here: malloc() vs. HeapAlloc() (8 answers) Closed 2 years ago. I\'m having code that, for various reasons, I\'m trying to port from the C runtime to one[详细]

2023-02-02 12:08 分类：问答
PIMPL and stack allocation

So I\'ve been thinking about PIMPL and stack allocation. I\'ve been writing a library and decided to use PIMPL to hide the private member of the class. That means I would have a class declared like th[详细]

2023-01-06 21:37 分类：问答
(C) how does a heap allocator handle a 4-byte block header, while only returning addresses that are multiples of 8?

It doesn\'t seem to make sense, unless we just ignore any potential excess space at the beginning of a segment, and then have the first allocated chunk be at the first multiple of 8 (with its correspo[详细]

2023-01-01 12:11 分类：问答
What alignment does HeapAlloc use

I\'m developing a general purpose library开发者_StackOverflow which uses Win32\'s HeapAlloc MSDN doesn\'t mention alignment guarantees for Win32\'s HeapAlloc, but I really need to know what alignment[详细]

2022-12-30 00:37 分类：问答
Change DatePicker style based on SelectedDate

First question here. Anyway, here it goes: I have a XAML Windows with a lot of DatePicker controls (DatePicker from the WPFToolkit on CodePlex). Every DatePicker has a default Value of 1/1/1990 and i[详细]

2022-12-18 05:20 分类：问答