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How do you test functions and closures for equality?
...tion pointer and its context hidden in the function object.
func peekFunc<A,R>(f:A->R)->(fp:Int, ctx:Int) {
typealias IntInt = (Int, Int)
let (hi, lo) = unsafeBitCast(f, IntInt.self)
let offset = sizeof(Int) == 8 ? 16 : 12
let ptr = UnsafePointer<Int>(lo+offset)
...
How can I override Bootstrap CSS styles?
...itional arbitrary ID to one of the root elements on your page, like this: <body id="bootstrap-overrides">
This way, you can just prefix any CSS selector with your ID, instantly adding 100 points of weight to the element, and overriding Bootstrap definitions:
/* Example selector defined in Bo...
What is a higher kinded type in Scala?
...t it in another way: In Java, we have clearly type constructors (e.g. List<T>), but we have no "higher kinded types", because we can't abstract over them (e.g. we can't write the Functor interface defined above - at least not directly).
The term "higher order (type constructor) polymorphism" ...
How can I delete all of my Git stashes at once?
... stash drop (" Remove a single stashed state from the stash list. When no <stash> is given, it removes the latest one. (...) ") does not answer the question (" How can I delete all of my Git stashes at once? ")?
– Tadeck
Sep 2 '15 at 15:48
...
Using Rails 3.1 assets pipeline to conditionally use certain css
...*= require_tree ./ie
*/
Next you update your application layout file:
<%= stylesheet_link_tag "application-all", :media => "all" %>
<%= stylesheet_link_tag "application-print", :media => "print" %>
<!--[if lte IE 8]>
<%= stylesheet_link_tag "application-ie", :medi...
How to call a parent class function from derived class function?
...t have a keyword for "the base class" (super or base) since C++ supports multiple inheritance which may lead to ambiguity.
class left {
public:
void foo();
};
class right {
public:
void foo();
};
class bottom : public left, public right {
public:
void foo()
{
//base::foo()...
Understanding colors on Android (six characters)
...docs at developer.android.com/reference/android/graphics/Color.html (find << in the page).
– Jon Skeet
Aug 13 '13 at 5:46
...
Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
... fetch throws an error if the key is not found, unless you pass a default. So you would need to write: session[:comments].try(:fetch, @comment.id, nil)
– rigyt
Jun 13 '12 at 10:56
...
Optimal settings for exporting SVGs for the web from Illustrator?
...ng power devices. It will discard gradients, opacity, embedded fonts and filters. Erik Dahlström says: All SVG 1.1 full viewers should be able to display all of the SVG 1.1 Tiny/Basic content (according to spec), and probably all of the SVG 1.2 Tiny content that Illustrator produces too.
Fonts not...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
...
Using phpseclib, a pure PHP RSA implementation...
<?php
include('Crypt/RSA.php');
$rsa = new Crypt_RSA();
$rsa->loadKey('-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA61BjmfXGEvWmegnBGSuS
+rU9soUg2FnODva32D1AqhwdziwHINFaD1MVlcrYG6XRKfkcxnaXGfFD...