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How to build Qt for Visual Studio 2010

...7: the latest Qt 4.x branch (Qt 4.8.6) has 2 pre-built packages, which are now in the archive section: http://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2010-4.8.6.exe http://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2008-4.8.6.exe You should not downlo...
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What is the reason why “synchronized” is not allowed in Java 8 interface methods?

...o participate in the synchronization policy of some other object, if they know what that policy is. The dangerous part is assuming that synchronizing on 'this' (which is what sync methods do) is actually meaningful; this needs to be a more explicit decision. That said, I expect sync blocks in inte...
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How to properly seed random number generator

... simply call Intn to get the next random integer. Move the rand.Seed(time.Now().UTC().UnixNano()) line from the randInt function to the start of the main and everything will be faster. Note also that I think you can simplify your string building: package main import ( "fmt" "math/rand" ...
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iPhone UIView Animation Best Practice

...ify an arbitrary CoreImage filter to use as a transition, but as it stands now you can't do this on the iPhone, which lacks CoreImage. share | improve this answer | follow ...
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How can I save an image with PIL?

... BMP (without the dot) or pass the output name with the extension already. Now to handle the error you need to properly modify your data in the frequency domain to be saved as an integer image, PIL is telling you that it doesn't accept float data to save as BMP. Here is a suggestion (with other mino...
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How to generate unique ID with node.js

...(); // -> '110ec58a-a0f2-4ac4-8393-c866d813b8d1' ** UPDATE 7.x And now the above usage is deprecated as well, so use this package like this: const { v1: uuidv1 } = require('uuid'); uuidv1(); // -> '6c84fb90-12c4-11e1-840d-7b25c5ee775a' const { v4: uuidv4 } = require('uuid'); uuidv4()...
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How do I check if a Sql server string is null or empty

...ffer_Text == '') temp := null; else temp := listing.Offer_Text; // may now be null or non-null, but not '' // b) ISNULL: if (temp is null) result := true; else result := false; share | impr...
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Check difference in seconds between two times

... (dateTime1 - dateTime2).TotalSeconds; In your case, you 'd use DateTime.Now as one of the values and the time in the list as the other. Be careful of the order, as the result can be negative if dateTime1 is earlier than dateTime2. ...
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How ListView's recycling mechanism works

...s advice I was able to change how I added Views to my GridView. Problem is now I have something that does not make sense. This is my getView from my BaseAdapter : ...
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Equation (expression) parser with precedence?

...l, you actually have a hope at scaling up later, showing other people you know that parsers are the domain of parsing tools. Update: People here have offered much sound advice. My only warning against skipping the parsing tools or just using the Shunting Yard algorithm or a hand rolled recursive...