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What does the ??!??! operator do in C?
...eys:
{ | } ~
The trigraphs were defined to fix a specific problem. The idea was that C programs could use the ASCII subset found on the ASR-33 and in other environments missing the high ASCII values.
Your example is actually two of ??!, each meaning |, so the result is ||.
However, people ...
How to properly add include directories with CMake
... dependency on the library) ? It's a growing project and I quite dread the idea of adding a header to all the dependencies when I add one in the root library.
– Matthieu M.
Dec 4 '12 at 13:13
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Why are global variables evil? [closed]
...
Using globals is a horrible idea, one reason might be the inability to properly test functions that update some arbitrary dictionary that exists "somewhere". A codebase with globals cannot be actually proved functional.
– Tomasz So...
Move the mouse pointer to a specific position?
...Lock, and hitting escape will break it. From my brief read-up, I think the idea is that it locks the mouse to one location, and reports motion events similar to click-and-drag events.
Here's the release documentation:FireFox: https://developer.mozilla.org/en-US/docs/Web/API/Pointer_Lock_APIChrome: ...
Python idiom to return first item or None
... in an if check. Just simply say
if list:
Additionally, it's a very Bad Idea to assign to variables that overlap with reserved words. "list" is a reserved word in Python.
So let's change that to
some_list = get_list()
if some_list:
A really important point that a lot of solutions here miss is...
Git submodule update
...ur main project refering to a new version of said submodule.
But the main idea remains: referencing specific components which:
have their own lifecycle
have their own set of tags
have their own development
The list of specific commits you are refering to in your main project defines your confi...
Fade/dissolve when changing UIImageView's image
... guess it's some kind of caching the presentationLayer or something?!? Any ideas what it could be?
– Georg
Feb 25 '14 at 12:37
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Can PHP PDO Statements accept the table or column name as parameter?
...'users','products',...] ) { $sql = "SELECT * FROM $tbl"; }. Thanks for the idea.
– Phil Tune
Mar 2 '16 at 17:20
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How do I resolve git saying “Commit your changes or stash them before you can merge”?
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running git clean -dfx was a terrible idea. Removed some .gitignored files I actually needed.
– ezuk
May 20 '14 at 16:10
5
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Throw keyword in function's signature
...onsidered good practice. On the contrary, it is generally considered a bad idea.
http://www.gotw.ca/publications/mill22.htm goes into a lot more detail about why, but the problem is partly that the compiler is unable to enforce this, so it has to be checked at runtime, which is usually undesirable....