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Is it good practice to NULL a pointer after deleting it?
...d to achieve in practice. I prefer a masked double delete bug over UB.
Finally, a sidenote regarding managing object allocation, I suggest you take a look at std::unique_ptr for strict/singular ownership, std::shared_ptr for shared ownership, or another smart pointer implementation, depending on yo...
What does “atomic” mean in programming?
...eans an operation that appears to be instantaneous from the perspective of all other threads. You don't need to worry about a partly complete operation when the guarantee applies.
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Passing a std::array of unknown size to a function
...way to make this work, as one would with plain C-style arrays?
No. You really cannot do that unless you make your function a function template (or use another sort of container, like an std::vector, as suggested in the comments to the question):
template<std::size_t SIZE>
void mulArray(std:...
RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
...
As per RFC1912 section 2.4:
A CNAME record is not allowed to coexist with any other data. In
other words, if suzy.podunk.xx is an alias for sue.podunk.xx, you
can't also have an MX record for suzy.podunk.edu, or an A record, or
even a TXT record. Especially do not try t...
Is std::vector copying the objects with a push_back?
...e name of an entity declared as rvalue reference, then the argument is actually an lvalue and will not be moved from) - check my edit to the answer of "Karl Nicoll" which made that mistake initially
– M.M
Apr 16 '17 at 0:17
...
How to create a jQuery plugin with methods?
... plugin that will provide additional functions/methods to the object that calls it. All the tutorials I read online (have been browsing for the past 2 hours) include, at the most, how to add options, but not additional functions.
...
Overriding Binding in Guice
...er be injecting mock or fake objects by hand.
On the other hand, if you really want to replace a single binding, you could use Modules.override(..):
public class ProductionModule implements Module {
public void configure(Binder binder) {
binder.bind(InterfaceA.class).to(ConcreteA.class...
How to get an MD5 checksum in PowerShell
...h = [System.BitConverter]::ToString($md5.ComputeHash([System.IO.File]::ReadAllBytes($someFilePath)))
Starting in PowerShell version 4, this is easy to do for files out of the box with the Get-FileHash cmdlet:
Get-FileHash <filepath> -Algorithm MD5
This is certainly preferable since it a...
How do I parse command line arguments in Bash?
Say, I have a script that gets called with this line:
37 Answers
37
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Remove all classes that begin with a certain string
... know which class from the group is on the div. I want to be able to clear all classes with a given prefix and then add a new one. If I want to remove all of the classes that begin with "bg", how do I do that? Something like this, but that actually works:
...