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How do I “git blame” a deleted line?
...
If you know the contents of the line, this is an ideal use case for:
git log -S <string> path/to/file
which shows you commits which introduce or remove an instance of that string. There's also the -G<regex> which does ...
shared_ptr to an array : should it be used?
... convertible to T*. ...
To support this, the member type element_type is now defined as
using element_type = remove_extent_t<T>;
Array elements can be access using operator[]
element_type& operator[](ptrdiff_t i) const;
Requires: get() != 0 && i >= 0. If T is U[N]...
Random / noise functions for GLSL
...representation so it should be perfectly portable.
I gave this a try just now. The results are very good: it looks exactly like static with every input I tried, no visible patterns at all. In contrast the popular sin/fract snippet has fairly pronounced diagonal lines on my GPU given the same inpu...
Why does C++ require a user-provided default constructor to default-construct a const object?
...ised.
B b{}; is value initialisation: the member int x is uninitialised.
Now see what happens when we add const:
const A a; is default initialisation: this is ill-formed due to the rule quoted in the question.
const B b; is default initialisation: the member int x is uninitialised.
const A a{}; ...
JPA or JDBC, how are they different?
...ssfish for the same. I saw some examples and also read the Oracle docs to know all about Java EE 5. Connecting to a database was very simple. I opened a dynamic web project, created a session EJB , I used EntityManager and with the get methods could access the stored data table.
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Override configured user for a single git commit
... github server.
Make sure that you see a .git folder in that work folder. Now open that folder in Terminal/Console/CommandPrompt and try changing the username and email for that folder only by running the commands I specified above.
By changing that, you may now be able to access the GitHub server...
What is aria-label and how should I use it?
...ion to the action led by the button (think about someone with no computer knowledge). It might mean "close", "delete", "cancel", "reduce", a strange cross, a doodle, nothing.
Despite the fact that the W3C seems to promote the aria-label rather that the title attribute here: http://www.w3.org/TR/201...
What would a “frozen dict” be?
...to want such a type is when memoizing function calls for functions with unknown arguments. The most common solution to store a hashable equivalent of a dict (where the values are hashable) is something like tuple(sorted(kwargs.iteritems())).
This depends on the sorting not being a bit insane. Pyth...
What is the Difference Between Mercurial and Git?
I've been using git for some time now on Windows (with msysGit) and I like the idea of distributed source control. Just recently I've been looking at Mercurial (hg) and it looks interesting. However, I can't wrap my head around the differences between hg and git.
...
What is the difference between up-casting and down-casting with respect to class variable
...g) animal;
Basically what you're doing is telling the compiler that you know what the runtime type of the object really is. The compiler will allow the conversion, but will still insert a runtime sanity check to make sure that the conversion makes sense. In this case, the cast is possible because ...