ZeroMemory macro (Windows) | Microsoft Learn
WebFeb 21, 2018 · Many programming languages include syntax for initializing complex variables to zero. There can be differences between the results of these operations and the ZeroMemory function. Use ZeroMemory to clear a block of memory in any programming language. This macro is defined as the RtlZeroMemory macro. For more information, …
Memory Management Functions - Win32 apps | Microsoft Learn
WebJan 26, 2024 · ZeroMemory: Fills a block of memory with zeros. ZeroVolatileMemory: Fills a block of memory with zeros.
SecureZeroMemory function (Windows) | Microsoft Learn
WebFeb 21, 2018 · Fills a block of memory with zeros. It is designed to be a more secure version of ZeroMemory. Syntax PVOID SecureZeroMemory( _In_ PVOID ptr, _In_ SIZE_T cnt ); Parameters. ptr [in] A pointer to the starting address of the block of memory to fill with zeros. cnt [in] The size of the block of memory to fill with zeros, in bytes. Return value
Why do ZeroMemory, etc. exist when there are memset, etc.
WebJun 14, 2010 · ZeroMemory appears to be a macro for cross MS-language nomenclature. I checked as it was possibly a system trick for hardware memory clearing which could have been more efficient. It is probably just syntactic sugar for memset; ignore it.
c++ - Null vs ZeroMemory - Stack Overflow
WebApr 29, 2013 · 0. ZeroMemory is for setting larger chunks of memory to zero. It should not be used on objects that aren't "POD" (plain old data), that is if your object has a constructor or virtual methods. NULL is used to indicate a pointer is pointing at "nothing".
When do you ZeroMemory a struct in C++? - Stack Overflow
WebApr 8, 2014 · ZeroMemory(&a, sizeof(a)) is equal to memset(&a, 0, sizeof(a));. It just fill memory with zero. But you must notice a should be POD-data. that is, you must not do this: std::string str; ZeroMemory(&a, sizeof(a)); // never!! You should use ZeroMemory and memset to POD-data.
Windows API Guide: ZeroMemory Function - jasinskionline.com
WebDescription & Usage. ZeroMemory fills a location in memory with zeros. The function sets each byte starting at the given memory location to zero. The memory location is identified by a pointer to the memory address.
Why do Microsoft code samples tend to use ZeroMemory instead …
WebJun 28, 2005 · If you go browsing around MSDN, you’ll find that code samples tend to call ZeroMemory explicitly rather than using “= { 0 }” notation. Why is that? To make it clearer for people who are used to other programming languages.
ZeroMemory question - C++ Forum - C++ Users
WebAug 18, 2014 · WNDCLASSEX wc; ZeroMemory(&wc, sizeof(WNDCLASSEX)); Is there a difference between the first and second code? Does ZeroMemory set all bytes of the structure to zero?
Difference Between Memset and ZeroMemory - Stack Overflow
WebMar 24, 2016 · memset(&addrinfo, NULL, sizeof(addrinfo)); in Unix/Linux or Windows. In the MSDN tutorial, Microsoft uses. ZeroMemory(&addrinfo, sizeof (addrinfo)); I was just wondering, is there any difference between the two functions?
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