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Is gettimeofday() guaranteed to be of microsecond resolution?
...lternatives like HPET and ACPI PM timer, and automatically select the best one. It's a good idea to always use the kernel for timing unless you are really sure the TSC is stable and monotonic.
– CesarB
Jul 7 '09 at 23:03
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How do I use a custom deleter with a std::unique_ptr member?
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There is one downside to this approach. std::function is not required to use move constructor whenever possible. This means that when you std::move(my_deleted_unique_ptr), contents enclosured by lambda will possibly be copied instead ...
Is it possible to make abstract classes in Python?
...decorator to declare a method abstract, and declare a class abstract using one of three ways, depending upon your Python version.
In Python 3.4 and above, you can inherit from ABC. In earlier versions of Python, you need to specify your class's metaclass as ABCMeta. Specifying the metaclass has dif...
How to check if an object is nullable?
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plus one for you sir for adding test cases. I've used those test cases for checking all the other answers. More people should go this extra bit.
– Marty Neal
Jan 7 '11 at 21:06
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Get nth character of a string in Swift programming language
...ise, it's more
efficient to keep it a Substring.
It would be great if someone could figure out a good way to merge
these two extensions into one. I tried extending StringProtocol
without success, because the index method does not exist there. Note: This answer has been already edited, it is properl...
Is duplicated code more tolerable in unit tests?
...ssertEqual(23, person.getAge())
Then perhaps you need a single assertPersonEqual method, so that you can write assertPersonEqual(Person('Joe', 'Bloggs', 23), person). (Or perhaps you simply need to overload the equality operator on Person.)
As you mention, it is important for test code to be rea...
Examples of GoF Design Patterns in Java's core libraries
... of design patterns in Wikipedia. It also mentions which patterns are mentioned by GoF. I'll sum them up here and try to assign as many pattern implementations as possible, found in both the Java SE and Java EE APIs.
Creational patterns
Abstract factory (recognizeable by creational methods returnin...
How can I configure Logback to log different levels for a logger to different destinations?
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yeah, that one only does info level when you want info, debug and trace to be logged to stdout but instead are ignored, right?
– Dean Hiller
Feb 24 '15 at 20:36
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What is the difference between char array and char pointer in C?
...o pointers, meaning that if an expression of type char[] is provided where one of type char* is expected, the compiler automatically converts the array into a pointer to its first element.
Your example function printSomething expects a pointer, so if you try to pass an array to it like this:
char ...
How can I rename a project folder from within Visual Studio?
...Default namespace to match.
If you wish to also rename the namespace, open one of your class files. Right click the namespace → Rename.... This should search and replace all references to your namespace throughout the project.
Close the project → rename the project folder.
Edit the .sln file in ...
