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Error handling in C code
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I like the error as return-value way. If you're designing the api and you want to make use of your library as painless as possible think about these additions:
store all possible error-states in one typedef'ed enum and use it in your lib. Don't just return ints...
CSS table layout: why does table-row not accept a margin?
...e;
border-spacing: 15px;
}
.row {
display: table-row;
}
.home_1 {
width: 64px;
height: 64px;
padding-right: 20px;
margin-right: 10px;
display: table-cell;
}
.home_2 {
width: 350px;
height: 64px;
padding: 0px;
vertical-align: middle;
font-size: 150%;
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Get/pick an image from Android's built-in Gallery app programmatically
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// this is the action code we use in our intent,
// this way we know we're looking at the response from our own action
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(saved...
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
.../y - 1/x^2) but they will be equally complicated.
Let's look at 1/sqrt(y) now. You can try f(x) = x^2 - 1/y, but it will be equally complicated: dx = 2xy / (y*x^2 - 1) for instance.
One non-obvious alternate choice for f(x) is: f(x) = y - 1/x^2
Then: dx = -f/f' = (y - 1/x^2) / (2/x^3) = 1/2 * x * ...
Ask for User Permission to Receive UILocalNotifications in iOS 8
I have set up local notifications in the App Delegate Using this:
5 Answers
5
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SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”. error
...gt;
<version>1.5.6</version>
</dependency>
Let me know if error is still not resolved
I also recomend you to see this link
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Delete an element from a dictionary
..., and also using linear space. For small dicts, this is not a problem. But if you're planning to make lots of copies of large dicts, you probably want a different data structure, like a HAMT (as described in this answer).
sh...
Scala @ operator
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o match {
case Some(x) => println(x)
case None =>
}
But what if you wanted not the content of Some, but the option itself? That would be accomplished with this:
o match {
case x @ Some(_) => println(x)
case None =>
}
Note that @ can be used at any level, not just at the to...
How do I create a link using javascript?
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@Nadu - Please stop editing my answer. If you want a specific thing to be said, add one of your own; if it's not "different" enough to warrant it, it's not different enough to warrant an edit.
– Jared Farrish
Jan 30 '17 at 17...
Dictionary returning a default value if the key does not exist [duplicate]
...orms, these extensions work when key doesn't exist, but TryGetValue throws if key is null. Knowing whether key is nullable or not would make this a trivial check.
– ProfK
Sep 27 '12 at 6:12
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