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How do I determine the size of my array in C?

...omputer, ints are 4 bytes long, so n is 68. To determine the number of elements in the array, we can divide the total size of the array by the size of the array element. You could do this with the type, like this: int a[17]; size_t n = sizeof(a) / sizeof(int); and get the proper answer (68 / 4 =...
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What is the difference between the template method and the strategy patterns?

Can someone please explain to me what is the difference between the template method pattern and the strategy pattern is? 16...
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How to get Core Data object from specific Object ID?

...re that has that ID, or nil if it doesn't exist. (Be aware: there are two methods on NSManagedObjectContext with similar-seeming names that tripped me up. To help keep them straight, here's what the other two do: -(NSManagedObject *)objectWithID:(NSManagedObjectID *)objectID ...will create a fau...
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How do I execute code AFTER a form has loaded?

... event that is fired AFTER the form has loaded. I would like to execute some logic after the form has loaded. 8 Answers ...
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Really Cheap Command-Line Option Parsing in Ruby

EDIT: Please, please , please read the two requirements listed at the bottom of this post before replying. People keep posting their new gems and libraries and whatnot, which clearly don't meet the requirements. ...
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AngularJS $http and $resource

I have some web services that I want to call. $resource or $http , which one should I use? 10 Answers ...
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Multiprocessing: How to use Pool.map on a function defined in a class?

When I run something like: 18 Answers 18 ...
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Exclude a sub-directory using find

... This works: find /home/feeds/data -type f -not -path "*def/incoming*" -not -path "*456/incoming*" Explanation: find /home/feeds/data: start finding recursively from specified path -type f: find files only -not -path "*def/incoming*": don't i...
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How do I create an immutable Class?

...tore a read-only copy to be returned when callers access it), return an enumerator, or use some other method/property that allows read-only access into the collection keep in mind that you still may have the appearance of a mutable class if any of your members are mutable - if this is the case, you ...
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Facebook Post Link Image

When someone posts a link on facebook, a script usually scans that link for any images, and displays a quick thumbnail next to the post. For certain URLs though (including mine), FB doesn't seem to pick up anything, despite their being a number of images on that page. ...