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When do we have to use copy constructors?
...ou should point out the better solution is to use std::string. The general idea is that only utility classes that manage resources need to overload the Big Three, and that all other classes should just use those utility classes, removing the need to define any of the Big Three.
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Writing your own STL Container
...e that the below is technically more strict than required, but this is the idea. Note that the vast majority of the "standard" functions are technically optional, due to the awesomeness that is iterators.
template <class T, class A = std::allocator<T> >
class X {
public:
typedef A a...
JSP tricks to make templating easier?
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Based on the same basic idea as in @Will Hartung's answer, here is my magic one-tag extensible template engine. It even includes documentation and an example :-)
WEB-INF/tags/block.tag:
<%--
The block tag implements a basic but useful exten...
How do iOS Push Notifications work?
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Any idea what is the usage of the Device Token? Is it used for encrypting communication between the APNS server and the App or elsewhere?
– Mugen
Apr 27 '16 at 8:15
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How to avoid reinstalling packages when building Docker image for Python projects?
...king for in his use case but if your making a build server this is a great idea
– oden
Jan 2 '18 at 6:07
2
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Accessing a Shared File (UNC) From a Remote, Non-Trusted Domain With Credentials
... the local user account on the shared folder, but I get access denied. Any ideas on why this may be happening? thx.
– M3NTA7
May 4 '17 at 16:02
2
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Do sealed classes really offer performance Benefits?
...@Smilediver It can improve performance, but only if you have a bad JIT (no idea how good the .NET JITs are nowadays though - used to be quite bad in that regard). Hotspot for example will inline virtual calls and deoptimize later if necessary - hence you pay the additional overhead only if you actua...
I need to securely store a username and password in Python, what are my options?
...od place to start. It's described well in the Twelve Factor App. The basic idea is that your source code just pulls the password or other secrets from environment variables, and then you configure those environment variables on each system where you run the program. It might also be a nice touch if ...
What are type lambdas in Scala and what are their benefits?
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I'm running nightlies for Nika and I don't have the IDEA option described. Interestingly enough, there is an inspection for "Applied Type Lambda can be simplified."
– Randall Schulz
May 14 '12 at 22:44
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What part of Hindley-Milner do you not understand?
...yntax, while it may look complicated, is actually fairly simple. The basic idea comes from formal logic: the whole expression is an implication with the top half being the assumptions and the bottom half being the result. That is, if you know that the top expressions are true, you can conclude that ...