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Mutex example / tutorial? [closed]

... it. The other men wait outside //man happily talks to his wife from now.... std::cout << i << " Hello Wife" << std::endl; i++;//no other thread can access variable i until m.unlock() is called //...until now, with no interruption from other men m.unlock...
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When should iteritems() be used instead of items()?

....items() returned a list of (key, value) pairs. In Python 3.x, .items() is now an itemview object, which behaves different - so it has to be iterated over, or materialised... So, list(dict.items()) is required for what was dict.items() in Python 2.x. Python 2.7 also has a bit of a back-port for key...
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How do I resolve “HTTP Error 500.19 - Internal Server Error” on IIS7.0 [closed]

...ewrite> config section is valid so the config is malformed technically. Now why they can't just spit out a better error is beyond me. – Wyatt Barnett Apr 7 '14 at 20:46 16 ...
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Why doesn't the height of a container element increase if it contains floated elements?

...ce blank --> <div style="clear: both;"></div> <!-- Now in order to prevent the next div from floating beside the top ones, we use `clear: both;`. This is like a wall, so now none of the div's will be floated after this point. The container height will now also...
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browser sessionStorage. share between tabs?

...sionStorage', JSON.stringify(sessionStorage)); // the other tab should now have it, so we're done with it. localStorage.removeItem('sessionStorage'); // <- could do short timeout as well. } else if (event.key == 'sessionStorage' && !sessionStorage.length) { // another tab se...
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How do I get the day of the week with Foundation?

...ter alloc] init] ; [dateFormatter setDateFormat:@"EEEE"]; NSDate *now = [[NSDate alloc] init]; NSString *dateString = [format stringFromDate:now]; NSString *theDate = [dateFormat stringFromDate:now]; NSString *theTime = [timeFormat stringFromDate:now]; NSString *week = [dat...
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What is the best way to conditionally apply a class?

...nditionally, like: ng-class="{selected: $index==selectedIndex}" Angular now supports expressions that return an object. Each property (name) of this object is now considered as a class name and is applied depending on its value. However these ways are not functionally equal. Here is an example: ...
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Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image?

...time (downside: will only work on fairly recent devices, where -xxhdpi is known). Option #2: Use Android Asset Studio to downsample them for you. Option #3: Automate the process within a graphics editor, per ssantos' answer. Option #4: Script yourself a solution, using something like ImageMagick. Op...
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Using Gulp to Concatenate and Uglify files

... Coming from grunt it was a little confusing at first but it makes sense now. I hope it helps the gulp noobs. And, if you need sourcemaps, here's the updated code: var gulp = require('gulp'), gp_concat = require('gulp-concat'), gp_rename = require('gulp-rename'), gp_uglify = require(...
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Check time difference in Javascript

... I never know if dates in this format will be parsed as d/m/y or m/d/y. The official formats accepted are here (whatever Date.parse() accepts is valid), developer.mozilla.org/en/JavaScript/Reference/Global_Objects/… ...