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Compiling with g++ using multiple cores

Quick question: what is the compiler flag to allow g++ to spawn multiple instances of itself in order to compile large projects quicker (for example 4 source files at a time for a multi-core CPU)? ...
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Can I do a synchronous request with volley?

... It is probably recommended to use the Futures, but if for whatever reason you don't want to, instead of cooking your own synchronized blocking thing you should use a java.util.concurrent.CountDownLatch. So that would work like this.. //I'm running this in an instrumentation test, i...
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Getting name of windows computer running python script?

... ok, so this cries out for a follow-up: what's the difference between platform.node() and socket.gethostname() ? can they ever be different? – Jason S Mar 11 '11 at 22:52 ...
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Hidden Features of MySQL

...lot of open files. 20+max_connections+table_cache*2 is a good estimate for what you need. MySQL on Linux has an open_file_limit option, set this limit. If you have complex queries sort_buffer_size and tmp_table_size are likely to be very important. Values will depend on the query complexity and ava...
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How do I erase an element from std::vector by index?

... Thank you to all who have answered. What are we to think of a class design when such a simple operation as deleting an element, requires one to come to StackOverflow? – Pierre Jan 28 '18 at 18:35 ...
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What does CultureInfo.InvariantCulture mean?

...ntioned data types to strings (write) for display or storage. If you know what specific culture that your dates and decimal / currency values will be in ahead of time, you can use that specific CultureInfo property (i.e. CultureInfo("en-GB")). For example if you expect a user input. The CultureInf...
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Can you disable tabs in Bootstrap?

... Old question, but it's what I found so I'm adding this. You would do that check because the li is what changes the visuals for the user and is consequently what should have the disabled class. – Jared Mar 16 '...
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transform object to array with lodash

... What about if you wanted to preserve the key as a property? (in this example, if the id property did not exist and you wanted to create it based on the key of each object. – Michael Liquori ...
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How do I get a Date without time in Java?

...Your code will be much clearer if you're able to use types which represent what you're actually trying to do. There are many, many other reasons to use Joda Time or java.time instead of the built-in java.util types - they're generally far better APIs. You can always convert to/from a java.util.Date...
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download file using an ajax request

... works but what happens if the file is creating during execution? it doesnt work like when the file is created already. – Diego Jun 13 '17 at 2:16 ...