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What's the best way to iterate over two or more containers simultaneously

...t simple enough to live in isolation without using a library (and it is!). Now I would probably write it as a wrapper around Boost.Range. That said, the performance of my library is already optimal. What I mean by this is that using my indices implementation yields compiler output which is identical...
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Can I set an opacity only to the background image of a div?

... add a comment or a little update to your question, informing that this is now the new good way to do it. See you in 4 years for a new update ;) – jj_ Dec 17 '15 at 11:48 ...
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NSRange to Range

...??? Therefore the text replacement in the text field delegate method can now be done as func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool { if let oldString = textField.text { l...
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An error occurred while installing pg (0.17.1), and Bundler cannot continue

... And now, as of 1/22/15 we're looking at the 9.4 release, it's good to see they're keeping it updated -- "gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.4/bin/pg_config" – c...
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Create unique constraint with null columns

...rom favo_3col_uni_idx and your requirements are still enforced. The index, now comprising the whole table, overlaps with the other one and gets bigger. Depending on typical queries and the percentage of NULL values, this may or may not be useful. In extreme situations it might even help to maintain ...
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How do I count the number of occurrences of a char in a String?

...ly-written and poorly-maintained "*Utils" classes. Part of your job is to know what's available in Apache Commons. – AbuNassar Oct 5 '16 at 14:58  |  ...
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How to convert a byte array to a hex string in Java?

... @maybeWeCouldStealAVan: JDK 7 is now open source. We should submit a patch to improve performance for printHexBinary? – kevinarpe Jul 10 '13 at 17:05 ...
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How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?

...s 256-bit AES encryption which is not supported by Java out of the box. I know to get this to function correctly I install the JCE unlimited strength jars in the security folder. This is fine for me being the developer, I can install them. ...
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How to convert AAR to JAR

...ProjectLib.jar) and move it to the lib folder within the extracted folder. Now in order for Eclipse to accept it you need to put two files into the extracted folder root: .project .classpath To do that, create a new Android dummy project in Eclipse and copy over the files, or copy over from an ex...
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List of foreign keys and the tables they reference

... @roshan Now that you mention it, the column order feels a bit odd :) Obviously five years ago I wouldn't have thought that this answer would be viewed by so many! – Vincent Malgrat May 22 '14 at...