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Is there a max array length limit in C++?
...the type of allocator used to construct the vector because an allocator is free to manage memory any way it wants. A very odd but nontheless conceivable allocator could pool memory in such a way that identical instances of an object share resources. This way, you could insert a lot of identical obje...
How do I search an SQL Server database for a string?
... objects (e.g. tables, columns, and triggers) by name - have a look at the free Redgate Software tool called SQL Search which does this - it searches your entire database for any kind of string(s).
It's a great must-have tool for any DBA or database developer - did I already mention it's absol...
“The certificate chain was issued by an authority that is not trusted” when connecting DB in VM Role
...g Let's Encrypt to get a CA signed certificate from a known trusted CA for free, and install it on the VM. Don't forget to set it up to automatically refresh. You can read more on this topic in SQL Server books online under the topic of "Encryption Hierarchy", and "Using Encryption Without Validati...
How can I sort a List alphabetically?
...untryNames, Collator.getInstance());
Solution with a TreeSet
If you are free to decide, and if your application might get more complex, then you might change your code to use a TreeSet instead. This kind of collection sorts your entries just when they are inserted. No need to call sort().
Collec...
MySQL select one column DISTINCT, with corresponding other columns
... @Full Decent you can't, according to MySQL documentation: "The server is free to choose any value from each group, so unless they are the same, the values chosen are indeterminate.". In practice I've successfully used this kind of queries with ORDER BY clause, for instance you could add ORDER BY ...
Is it safe to delete a NULL pointer?
...However, despite these abrogations of your draconian ownership rules, lock free structures are provably more robust than lock based ones. And yes, my co-workers do indeed love me for the enhanced execution profile these structures provide and the rigorous thread safety they maintain, which allow eas...
GPL and LGPL open source licensing restrictions [closed]
...re must be released with a compatible license.
The GPL/LGPL licenses mean "free" as in "free speech", not "free beer". You can create a derivative work and sell it for large amounts of money, but you must comply with the GPL/LGPL.
...
ImageConvertor 扩展：免费图像转换器，支持JPG/PNG/WEBP格式转换和图像处...
...者：Kumaraswamy
原始网址：https://community.appinventor.mit.edu/t/free-image-convertor-extension-to-convert-image-format-jpg-png-webp-and-much-much-more/39349
发布日期：2021年8月17日
最新版本：3.9
许可协议：免费开源
文档最后更新：2025年11月19日
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Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
... to any allocated memory for which the Garbage Collector (GC) is unable to free up after the allocated memory has outlived its useful lifespan.
Most of the time, when a variable goes out of scope, the memory will be reclaimed by the GC. However, memory leaks can occur when the reference to an objec...
Is it safe to remove selected keys from map within a range loop?
... size.
This explains why using the delete(k,v) function doesn't actually free up memory, just removes it from the list of buckets you're allowed to access. If you want to free up the actual memory you'll need to make the entire map unreachable so that garbage collection will step in. You can do th...