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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?

... GCC has: -- Built-in Function: int __builtin_clz (unsigned int x) Returns the number of leading 0-bits in X, starting at the most significant bit position. If X is 0, the result is undefined. -- Built-in Function: int __builtin_clzl (unsigned long...
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What does #defining WIN32_LEAN_AND_MEAN exclude exactly?

I found the explanation defining WIN32_LEAN_AND_MEAN "reduces the size of the Win32 header files by excluding some of the less frequently used APIs". Somewhere else I read that it speeds up the build process. ...
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Can I serve multiple clients using just Flask app.run() as standalone?

...onal keyword arguments (**options) that it forwards to werkzeug.serving.run_simple - two of those arguments are threaded (a boolean) and processes (which you can set to a number greater than one to have werkzeug spawn more than one process to handle requests). threaded defaults to True as of Flask ...
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Flatten nested dictionaries, compressing keys

...ng the dictionary at final step. import collections def flatten(d, parent_key='', sep='_'): items = [] for k, v in d.items(): new_key = parent_key + sep + k if parent_key else k if isinstance(v, collections.MutableMapping): items.extend(flatten(v, new_key, sep=s...
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How to download a file from a URL in C#?

...ethod also supports local files as 1st parameter – oo_dev Aug 22 '17 at 8:35 The MSDN doc did mention to use HttpClien...
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How to darken a background using CSS?

... image */ url(http://fc02.deviantart.net/fs71/i/2011/274/6/f/ocean__sky__stars__and_you_by_muddymelly-d4bg1ub.png); } Reference: linear-gradient() - CSS | MDN UPDATE: Not all browsers support RGBa, so you should have a 'fallback color'. This color will be most likely be solid (...
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Multiple file upload in php

...ave multiple="multiple" or just multiple In your PHP file use the syntax "$_FILES['inputName']['param'][index]" Make sure to look for empty file names and paths, the array might contain empty strings. Use array_filter() before count. Here is a down and dirty example (showing just relevant code) ...
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Specify JDK for Maven to use

...r a single invocation of maven? Temporarily change the value of your JAVA_HOME environment variable. share | improve this answer | follow | ...
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Pickle or json?

...ccf1b3fa91f4399902bb534/raw/03e8dbab11b5605bc572bc117c8ac34cfa959a70/pickle_vs_json.py python pickle_vs_json.py Results with python 2.7 on a decent 2015 Xeon processor: Dir Entries Method Time Length dump 10 JSON 0.017 1484510 load 10 JSON 0.375 - dump 10 Pickle 0.011 ...
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完美解决phpcms批量移动内容后,新闻心情、评论排行等不更新的问题 - 更多...

... */ public function remove() { if(isset($_POST['dosubmit'])) { $this->content_check_db = pc_base::load_model('content_check_model'); $this->hits_db = pc_base::load_model('hits_model'); $this-...