大约有 4,210 项符合查询结果(耗时:0.0232秒) [XML]

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Are “while(true)” loops so bad? [closed]

...ffer, &buffer_size, stdin)) != -1 ){ // do something with the line } free(buffer); or if you're convinced you know how long the longest line of text in your file is, you can do #include <stdio.h> char buffer[BUF_SIZE]; while (fgets(buffer, BUF_SIZE, stdin)) { //do something with the...
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How does origin/HEAD get set?

... @Jubobs Thanks! If my answer needs updating, please feel free to simply edit it, though - it'll certainly save people time to read a brief summary of how things actually work, rather than having to sort through what was true two years ago and what's true now. –...
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Do I set properties to nil in dealloc when using ARC?

... ivars that need special handling (e.g. allocated buffers that you need to free()) you still have to deal with those in dealloc. Furthermore, if you've set yourself as the delegate of any objects, you should un-set that relationship in dealloc (this is the bit about calling [obj setDelegate:nil]). ...
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How to implement an STL-style iterator and avoid common pitfalls?

... @L.F. Then feel free to go back in time and add that information to the 2011 version of the site. ;-) – Christian Rau May 23 '19 at 11:01 ...
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Using an ORM or plain SQL? [closed]

... basically a layer of abstraction over a persistent store, when a ORM tool frees you from writing boilerplate SQL queries (selects by PK or by predicates, inserts, updates and deletes) and lets you concentrate on the problem domain. ...
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py2exe - generate single executable file

... raise Exception("'sprites' folder is not present!") Any questions fell free to ask. share | improve this answer | follow | ...
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Postgres and Indexes on Foreign Keys and Primary Keys

...l, rephrased the 1st par for clarity, and added a note that indexes aren't free so it's not always right to add them. – Craig Ringer Aug 23 '12 at 5:16 1 ...
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What is the difference/usage of homebrew, macports or other package installation tools? [closed]

...xcode IDE installed. xcode can be installed from the mac app store, its a free download but it takes a while since its around 5GB (if I remember correctly). macports is an osx version of the port utility from BSD (as osx is derived from BSD, this was a natural choice). For anyone familiar with any...
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How to compute the similarity between two text documents?

...(IR) covers this. See esp. Introduction to Information Retrieval, which is free and available online. Computing Pairwise Similarities TF-IDF (and similar text transformations) are implemented in the Python packages Gensim and scikit-learn. In the latter package, computing cosine similarities is as...
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How does a garbage collector avoid an infinite loop here?

...terminates (in other words, the garbage collector gives up and simply will free all memory without taking finalizers into account). share | improve this answer | follow ...