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Is std::vector so much slower than plain arrays?

... enough to optimize out all the C++ness and make STL containers as fast as raw arrays. The bottom line is that the compiler is unable to optimize away the no-op default constructor calls when using std::vector. If you use plain new[] it optimizes them away just fine. But not with std::vector. Even ...
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nodejs how to read keystrokes from stdin

... You can achieve it this way, if you switch to raw mode: var stdin = process.openStdin(); require('tty').setRawMode(true); stdin.on('keypress', function (chunk, key) { process.stdout.write('Get Chunk: ' + chunk + '\n'); if (key && key.ctrl && key...
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simple HTTP server in Java using only Java SE API

...s like: Jetty, Apache Http Components, Netty and others to be more like a raw HTTP processing facilities. The labelling is very subjective, and depends on the kinds of thing you've been call-on to deliver for small-sites. I make this distinction in the spirit of the question, particularly the rema...
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Convert Base64 string to an image file? [duplicate]

... I had just raw base64 data without any prefix or so. therefor I had to change $data[1] to $data[0]. – rcpfuchs Apr 27 '16 at 6:05 ...
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How does Dijkstra's Algorithm and A-Star compare?

... x, y = node.point print x, y pacman_x, pacman_y = [ int(i) for i in raw_input().strip().split() ] food_x, food_y = [ int(i) for i in raw_input().strip().split() ] x,y = [ int(i) for i in raw_input().strip().split() ] grid = [] for i in xrange(0, x): grid.append(list(raw_input().strip())) ne...
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Does PNG contain EXIF data like JPG?

...nk in PNG images. Original: ImageMagick stores EXIF information in a PNG "Raw profile type APP1" zTXt chunk when converting from JPEG images. This method of storing EXIF in PNG images is also supported by ExifTool (and I believe Exiv2 too), but it is not part of the PNG or EXIF specification. ...
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Is it a good practice to use try-except-else in Python?

...... except: ... else: ... structure makes for very readable code: try: raw_value = int(input()) except ValueError: value = some_processed_value else: # no error occured value = process_value(raw_value) Compare to how it might work in other languages: raw_value = input() if valid_number(...
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Preserve Line Breaks From TextArea When Writing To MySQL

... You should always store data raw in the database. Then convert and sanitize the data before you display it. – Edward Oct 31 '18 at 15:37 ...
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How to update npm

...up_8.x | sudo -E bash - sudo apt-get install nodejs Then : curl https://raw.githubusercontent.com/creationix/nvm/v0.33.2/install.sh | sh After this, open a new terminal and check the npm version: npm --version EDIT / UPDATE : Today the last nvm version is : https://raw.githubusercontent...
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Making a request to a RESTful API using python

...r credentials at runtime myResponse = requests.get(url,auth=HTTPDigestAuth(raw_input("username: "), raw_input("Password: ")), verify=True) #print (myResponse.status_code) # For successful API call, response code will be 200 (OK) if(myResponse.ok): # Loading the response data into a dict variab...