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What optimizations can GHC be expected to perform reliably?
...s of a case, so that we don't allocate things, save them on the stack, and then discover that they aren't needed in the chosen branch.
As an example, suppose we had this expression:
let x = big in
case v of
True -> x + 1
False -> 0
If v evaluates to False, then by alloc...
How to determine the encoding of text?
...f you explicitly specified an encoding, and that encoding actually worked: then it will ignore any encoding it finds in the document.
An encoding sniffed by looking at the first few bytes of the file. If an encoding is detected at this stage, it will be one of the UTF-* encodings, EBCDIC, or ASCII.
...
in iPhone App How to detect the screen resolution of the device
...on everything is rendered at (except OpenGL) in code, with a 3x scale, but then that is down-sampled internally to the screen's native resolution of 1080 x 1920. One of many good explanations at link
– RobP
Sep 2 '15 at 15:19
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MySQL - Using COUNT(*) in the WHERE clause
... COUNT() - I am looking to return all the gid's which have a COUNT(*) more then 10
– Jarrod Dixon
Nov 19 '08 at 12:54
1
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How to change theme for AlertDialog
...og.Builder(new ContextThemeWrapper(this, R.style.AlertDialogCustom));
And then style it like you want:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="AlertDialogCustom" parent="@android:style/Theme.Dialog">
<item name="android:textColor">#00FF00...
Force re-download of release dependency using Maven
...ency without clean or -U you could just remove it from your local repo and then build.
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Checking for NULL pointer in C/C++ [closed]
...ined behavior. In the example, if the test were made before any use of *x, then the optimizer would be wrong to eliminate the test.
– RBerteig
Feb 23 '17 at 0:21
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What is the easiest way to disable/enable buttons and links (jQuery + Bootstrap)
...
$('a').disable(false);
JSFiddle disabled link demo.
Combined
We can then extend the previous disable function made above to check the type of element we're attempting to disable using is(). This way we can toggleClass() if it isn't an input or button element, or toggle the disabled property i...
Text size and different android screen sizes
...t its smallest dimension of
screen area be at least 600 dp at all times, then you can use this
qualifier to create the layout resources, res/layout-sw600dp/. The
system will use these resources only when the smallest dimension of
available screen is at least 600dp, regardless of whether the ...
Static extension methods [duplicate]
...c string SomeStringExtension(this string s)
{
//whatever..
}
When you then call it:
myString.SomeStringExtension();
The compiler just turns it into:
ExtensionClass.SomeStringExtension(myString);
So as you can see, there's no way to do that for static methods.
And another thing just dawne...