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libxml/tree.h no such file or directory
...project file
You need to add libxml2.dylib to your project (don't put it in the Frameworks section). On the Mac,
you'll find it at /usr/lib/libxml2.dylib and for the iPhone, you'll
want the
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.0.sdk/usr/lib/libxml2.dylib
versi...
Can the Android layout folder contain subfolders?
... now, I'm storing every XML layout file inside the 'res/layout' folder, so it is feasible and simple to manage small projects, but when there is a case of large and heavy projects, then there should be a hierarchy and sub-folders needed inside the layout folder.
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How to check a checkbox in capybara?
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I found the following worked for me:
# Check
find(:css, "#cityID[value='62']").set(true)
# Uncheck
find(:css, "#cityID[value='62']").set(false)
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Variable number of arguments in C++?
How can I write a function that accepts a variable number of arguments? Is this possible, how?
17 Answers
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Check if a class has a member function of a given signature
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I'm not sure if I understand you correctly, but you may exploit SFINAE to detect function presence at compile-time. Example from my code (tests if class has member function size_t used_memory() const).
template<typename T>
struct HasUsedMemoryMethod
{
template<typename U,...
Create singleton using GCD's dispatch_once in Objective-C
...ectly acceptable and thread-safe way to create an instance of your class. It may not technically be a "singleton" (in that there can only ever be 1 of these objects), but as long as you only use the [Foo sharedFoo] method to access the object, this is good enough.
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What is the proper way to check for null values?
I love the null-coalescing operator because it makes it easy to assign a default value for nullable types.
10 Answers
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Changing route doesn't scroll to top in the new page
...ur when the route changes.
In the step 11 of the tutorial http://angular.github.io/angular-phonecat/step-11/app/#/phones
you can see the list of phones. If you scroll to the bottom and click on one of the latest, you can see that the scroll isn't at top, instead is kind of in the middle.
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Is it possible to specify condition in Count()?
Is it possible to specify a condition in Count() ? I would like to count only the rows that have, for example, "Manager" in the Position column.
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Get second child using jQuery
...).next()
And a more elaborated example:
This code gets the text of the 'title' attribute of the 2nd child element of the UL identified as 'my_list':
$('ul#my_list:first-child').next().attr("title")
In this second example, you can get rid of the 'ul' at the start of the selector, as it's redu...