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Using custom std::set comparator
...the class name as the type parameter
set<int64_t, lex_compare> s;
If you want to avoid the functor boilerplate code you can also use a function pointer (assuming lex_compare is a function).
set<int64_t, bool(*)(const int64_t& lhs, const int64_t& rhs)> s(&lex_compare);
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How do you get a string from a MemoryStream?
If I am given a MemoryStream that I know has been populated with a String , how do I get a String back out?
11 Answers...
ASP.NET MVC HandleError
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Thanks for the extended information. I don't know what I did wrong, but I created a new project, ported all the existing views, controllers and models in it and now it works. Didn't know about the selective views though.
– Boris Callens
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How to use a custom comparison function in Python 3?
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What if I need both a key function AND a cmp function? I want to sort a list of dictionaries by a custom key in each dictionary. sorted_rows = sorted(rows, key=itemgetter('name'), cmp=locale.strxfrm) gives TypeError: 'cmp' is an i...
JavaScript: location.href to open in new window/tab?
... @alex I edited this answer to make the important bit readable. If you don't approve of my formatting, may I suggest shortening the URL so that the second parameter fits within the unscrolling region?
– Phrogz
Sep 20 '11 at 17:51
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What is the Java equivalent of PHP var_dump?
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You can't use your IDE's debugger if, for example, you are programming your JSP code in Adobe Experience Manager's browser-based editor. :(
– Trevor
Sep 24 '14 at 22:16
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Change string color with NSAttributedString?
... simple solution will work with all versions of iOS, not just iOS 6.
But if you needlessly wish to use NSAttributedString, you can do something like this:
UIColor *color = [UIColor redColor]; // select needed color
NSString *string = ... // the string to colorize
NSDictionary *attrs = @{ NSForegr...
How to get the anchor from the URL using jQuery?
...ar hash = url.substring(url.indexOf("#")+1);
You can give it a try here, if it may not have a # in it, do an if(url.indexOf("#") != -1) check like this:
var url = "www.aaa.com/task1/1.3.html#a_1", idx = url.indexOf("#");
var hash = idx != -1 ? url.substring(idx+1) : "";
If this is the current...
iOS 7 parallax effect in my view controller
...dd both effects to your view
[myBackgroundView addMotionEffect:group];
Swift (Thanks to @Lucas):
// Set vertical effect
let verticalMotionEffect = UIInterpolatingMotionEffect(keyPath: "center.y",
type: .TiltAlongVerticalAxis)
verticalMotionEffect.minimumRelativeValue = -10
verticalMotionEffect.ma...
What is the difference between self-types and trait subclasses?
...and Scala", you'll get many links, including presentations and videos. For now, here is a link to another question.
Now, as to what is the difference between a self type and extending a trait, that is simple. If you say B extends A, then B is an A. When you use self-types, B requires an A. There ar...