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What is the use of making constructor private in a class?
...y method on the class could return objects as the factory method choses to allocate them (like a singleton factory for example).
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Python string class like StringBuilder in C#?
...ncatenating strings(producing many small temporary objects that still need allocations and garbage collection) and even string formatting printf-like tools, not needing of interpreting formatting pattern overhead that is pretty consuming for a lot of format calls.
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SSO with CAS or OAuth?
...lify things further (it makes some worthwhile trade-offs by using a bearer token and pushing encryption down to the protocol layer), but it's still in its infancy, and in the meantime, OAuth will probably do the job just fine.
Ultimately, if you choose to use OpenID and OAuth, there are more librar...
Cast Int to enum in Java
...ing the result of values() is probably worthwhile, so as to avoid a memory allocation and arraycopy every time you invoke it.
– benkc
Apr 22 '13 at 22:52
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How to trigger event when a variable's value is changed?
...tuation. (If really need to change ownership between threads, pass a baton/token.) If I encountered a need for a lock here, I would carefully examine the overall design. OTOH, a lock here is harmless.
– ToolmakerSteve
Jul 11 '19 at 21:35
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Numpy - add row to array
...this type of manipulation you work against the good work Numpy does in pre-allocating memory for your existing array A. Clearly for small problem like in this answer this isn't a problem, but it can be more troubling for large data.
– dtlussier
Dec 15 '11 at 1...
C# Object Pooling Pattern implementation
...hrown.
List<Foo> list = SharedPools.Default<List<Foo>>().AllocateAndClear();
// Do something with list
SharedPools.Default<List<Foo>>().Free(list);
// Example 3 - I have also seen this variation of the above pattern, which ends up the same as Example 1, except Example ...
Displaying a message in iOS which has the same functionality as Toast in Android
...SString *message = @"Some message...";
UIAlertView *toast = [[UIAlertView alloc] initWithTitle:nil
message:message
delegate:nil
cancelButtonTitle:nil
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How to present popover properly in iOS 8
..."PopoverView"];
UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:controller];
nav.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popover = nav.popoverPresentationController;
controller.preferredContentSize ...
C++ template constructor
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create() does not have to do dynamic allocation. Just return Foo(...); Thanks @Samuel_xL. This turned out to be a great idea for me.
– NoahR
Feb 26 '13 at 5:08
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