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When do I use a dot, arrow, or double colon to refer to members of a class in C++?
...Knowing this allows you to immediately know quite a lot about a and b just by looking at a::b, a.b, or a->b, respectively, in any code you look at.
a::b is only used if b is a member of the class (or namespace) a. That is, in this case a will always be the name of a class (or namespace).
a.b ...
How to insert a newline in front of a pattern?
...d on Linux and OS X:
sed 's/regexp/\'$'\n/g'
In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed wants your newline literal to be escaped with a backslash, hence the \ before $. And fina...
Are the PUT, DELETE, HEAD, etc methods available in most web browsers?
...est methods. A workaround for this is to tunnel other methods through POST by using a hidden form field which is read by the server and the request dispatched accordingly.
However, GET, POST, PUT and DELETE are supported by the implementations of XMLHttpRequest (i.e. AJAX calls) in all the major we...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...difference between :key => "value" (hashrocket) and key: "value" (Ruby 1.9) notations?
5 Answers
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What do 'statically linked' and 'dynamically linked' mean?
...e at link time so they never change. A dynamically linked file referenced by an executable can change just by replacing the file on the disk.
This allows updates to functionality without having to re-link the code; the loader re-links every time you run it.
This is both good and bad - on one hand...
Is sizeof(bool) defined in the C++ language standard?
...oes the C++ language standard require sizeof(bool) to always be 1 (for 1 byte), or is this size implementation-defined?
4...
Remove tracking branches no longer on remote
...es branches listed on standard input.
Be careful deleting branches listed by git branch --merged. The list could include master or other branches you'd prefer not to delete.
To give yourself the opportunity to edit the list before deleting branches, you could do the following in one line:
git bra...
What is the Haskell response to Node.js?
...ncy isn't hard in Haskell, because most code is pure and so is thread-safe by construction. There are simple communication primitives. It's much harder to shoot yourself in the foot with concurrency in Haskell than in a language with unrestricted side effects.
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Check if two linked lists merge. If so, where?
...
If
by "modification is not allowed" it was meant "you may change but in the end they should be restored", and
we could iterate the lists exactly twice
the following algorithm would be the solution.
First, the numbers. Assume...
'Incomplete final line' warning when trying to read a .csv file into R
...ck of a final EOL. There's no way that in your case the warning was thrown by the function readTableHeader, because that one doesn't read the final line. Hence your problem is not the same as that of the OP.
– Joris Meys
May 1 at 11:31
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