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Commit only part of a file in Git
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You can use git add --patch <filename> (or -p for short), and git will begin to break down your file into what it thinks are sensible "hunks" (portions of the file). It will then prompt you with this question:
Stage this hunk [y,n,q,a,d,/,j,J,g,s,e,?]?
Here is a description of ea...
Scala: What is the difference between Traversable and Iterable traits in Scala collections?
I have looked at this question but still don't understand the difference between Iterable and Traversable traits. Can someone explain ?
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Do I cast the result of malloc?
...'t cast the result, since:
It is unnecessary, as void * is automatically and safely promoted to any other pointer type in this case.
It adds clutter to the code, casts are not very easy to read (especially if the pointer type is long).
It makes you repeat yourself, which is generally bad.
It can h...
See changes to a specific file using git
I know that I can use the git diff command to check the changes, but, as far as I understood, it is directory based. This means it gives all the changes of all files on the current directory.
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How to save username and password with Mercurial?
I used Mercurial in a personal project, and I have been typing my username and password every time I want to push something to the server.
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Circular gradient in android
...ying to make a gradient that emits from the middle of the screen in white, and turns to black as it moves toward the edges of the screen.
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SQL update query using joins
... gm.ManufacturerID = mm.ManufacturerID
WHERE im.mf_item_number like 'STA%' AND
gm.manufacturerID = 34
To make it clear... The UPDATE clause can refer to an table alias specified in the FROM clause. So im in this case is valid
Generic example
UPDATE A
SET foo = B.bar
FROM TableA A
JOIN TableB ...
How to link Docker services across hosts?
...allows servers from multiple containers to connect to each other via links and service discovery . However, from what I can see this service discovery is host-local. I would like to implement a service that uses other services hosted on a different machine.
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How can I delete a newline if it is the last character in a file?
...line if it is the last character in a file. od -c shows me that the command I run does write the file with a trailing new line:
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How do I sort a vector of pairs based on the second element of the pair?
...to your question, here's some thoughts ...
if you really wanna be creative and be able to reuse this concept a lot, just make a template:
template <class T1, class T2, class Pred = std::less<T2> >
struct sort_pair_second {
bool operator()(const std::pair<T1,T2>&left, const...